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Our Catalytic Converter Substrates Meet NASA & International Aerospace Emission Standards – Here's What That Actually Means
People throw around the term "aerospace grade" like it's some magic stamp. But what does it actually mean for a catalytic converter substrate? I've had customers ask if our parts are "NASA certified." NASA doesn't certify substrates. That's not how it works.
But we have built substrates for systems that ended up in NASA‑funded programs. And we've made plenty for aircraft APUs, ECS ozone converters, and ground support equipment that has to meet ICAO and EPA standards.
Here's what "aerospace grade" really requires – no marketing fluff.
NASA Doesn't Certify Substrates, But They Set the Bar
NASA doesn't have a single document that says "catalytic converter must meet this spec." But they've funded a lot of catalyst research over the years, and those performance targets have trickled down into commercial aerospace.
Look at the work NASA's Marshall Space Flight Center did with Precision Combustion on high‑temperature catalytic oxidizers for extended spaceflight. Those systems have to work from –100°C up to 500°C or more. That's a way wider range than any car converter sees. And they have to work the first time, every time, because there's no roadside assistance in space.
Another NASA project looked at breaking down toxic gases from solid waste processing on spacecraft. Same idea – fail‑safe, zero‑tolerance performance.
We've never gotten a direct purchase order from NASA. But we've sold substrates to aerospace companies who were building hardware for NASA‑related programs. They gave us their temperature specs, their vibration requirements, their thermal cycle counts. We met them. That's the closest you get to "NASA qualified" in this business.
ICAO and EPA – The Real Rules for Aircraft Emissions
If you're putting a converter on an aircraft engine or APU, the actual regulations come from ICAO and the EPA.
ICAO Annex 16, Volume II is the international standard. The current edition took effect in July 2023. It covers everything from engine emissions standards to certification procedures. There's a whole working group – CAEP – that keeps tightening the limits. They just agreed to stricter CO₂ rules for new aircraft types by 2031.
For the U.S., it's 40 CFR Part 87. That covers aircraft engine emissions, including APUs. APUs don't make up a huge percentage of airport emissions – less than 1% – but airports still care. Some major hubs restrict APU run time or require emissions controls.
We've supplied substrates for APU converters that helped customers meet those local air quality rules. No magic trick. Just a well‑designed substrate that actually cleans the exhaust.
SAE and AS9100 – The Quality Paperwork
This part is boring, but aerospace customers care about it more than you'd think.
AS9100 is the aerospace version of ISO 9001. It's not about the part itself – it's about how you make it, track it, and prove it. For any component going into an aircraft or ground support system, your supplier better have AS9100‑aligned processes.
That means full traceability. Every substrate gets a batch number. We know which coil of foil, which forming tool, which operator, which furnace cycle. If a customer calls with a problem, we can trace that part back to the shift it was made.
SAE also publishes standards like ARP9062 (operator self‑verification) and ARP9113 (supply chain risk management). We don't quote those by number in our sales pitch. But our processes follow the intent.
Jet Fuel Is Dirtier Than You Think
People assume jet fuel is clean. It's not.
ASTM D1655 allows up to 3,000 ppm sulfur. That's 3,000 parts per million. Compare that to ultra‑low sulfur diesel for cars – 15 ppm. Jet fuel is literally 200 times dirtier on sulfur.
Sulfur poisons precious metal catalysts. So an aerospace substrate has to be built differently. Higher precious metal loading. Poison‑resistant washcoat. More margin.
We learned this the hard way on an early APU project. Standard automotive‑style substrate died fast. Switched to a high‑sulfur formulation, and it lasted. Now we ask every aerospace customer about fuel sulfur content before we quote.
What "Aerospace‑Grade" Looks Like in Our Shop
So after all that, here's what we actually change when someone says "this is for an aircraft."
Material. Stainless. Always. Aluminum is fine for a Honda Civic. Not for something that sits near a hot APU or lives in an ECS compartment. For extreme heat, we go to Inconel.
Cell density. Lower than automotive. Usually 200–400 cpsi. High cell density creates backpressure, and aircraft systems hate backpressure.
Foil thickness. 0.04 to 0.08 mm. Thin enough to save weight – and aircraft customers weigh everything. Thick enough to survive vibration. The final number depends on how much shaking the part will see.
Brazing. High‑temperature nickel‑based filler. Not the standard stuff. It has to stay solid when the APU is running.
Mounting mat. Heavy‑duty, high‑temp rated. And we control the gap between the substrate and the can to within a few tenths of a millimeter. No rattling. Ever.
Testing. Thermal cycle (200+ cycles from room temp to 700°C). Vibration. Flow bench at temperature. Plus our standard peel tests and light tests.
Paperwork. Coil certs. Braze logs. Dimensional reports. Batch traceability. You want to see a certificate for the foil? We have it. You want to know what furnace run your parts came from? We can tell you.
Real Jobs We've Done
We made an oval stainless substrate for a business jet ECS ozone converter. The customer tested it. Ozone removal was over 99%. They ordered hundreds.
We built a small, heavy‑duty substrate for a regional jet APU. The vibration environment was brutal. We used thicker foil and a denser mat than usual. It lasted through 2,000 hours of testing. The previous supplier's part cracked at 500.
And we've sold raw honeycomb to a systems integrator who builds environmental control hardware for NASA‑funded research. I can't name the program. But the temperature range they asked for was way outside anything we do for cars. We figured it out.
Bottom Line
"Aerospace grade" isn't a sticker you put on a box. It's a list of real requirements. ICAO emissions. EPA Part 87. AS9100 traceability. Sulfur‑resistant washcoat. Thermal cycling. Vibration testing. Paperwork that proves everything.
We've built substrates that meet those requirements. Not for every aircraft application out there – but for enough of them that we know what works.
If you need a catalytic substrate for an aircraft APU, an ECS ozone converter, or ground support equipment, bring us your specs. We'll tell you what we've done for other customers in your space. And we'll build you a part that passes the test – not just on paper, but when your quality auditor checks the batch number.
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High‑Reliability Catalytic Substrates for Aircraft Exhaust Systems – Solving Extreme Environment Pain Points
This one came from a Tier 1 aerospace supplier. They made exhaust components for regional jets. Not the engine itself – the exhaust system downstream of the turbine. They had a problem with a catalytic converter that kept failing.
The converter was supposed to clean up emissions from an auxiliary power unit. The APU runs when the plane is on the ground. It provides power and air conditioning. But the exhaust from an APU is nasty – high heat, high vibration, and the space is crammed into the tail cone, where everything is hot and nothing has room to breathe.
Their existing substrate from another supplier would crack after about 500 operating hours. Sometimes less. They'd pull the converter, see the honeycomb broken into pieces. They tried thicker foil. Tried different coatings. Nothing worked.
They came to us because they heard we did custom work for tough environments.
The Pain Points
We flew out to their facility – my first time in an aerospace plant. Everything was clean. Too clean. But the problem was real.
They laid out three big issues.
Heat. The APU exhaust hit 650 degrees Celsius continuous. Spikes to 750 during certain cycles. Most catalytic substrates start to soften around 600. Aluminum would turn to putty. Even standard stainless would creep over time.
Vibration. The tail cone of a jet is not a smooth place. The APU shakes. The airframe shakes. The exhaust system shakes with everything. Their old substrate was cracking along the brazed joints – classic vibration fatigue.
Space. The converter had to fit into a cylindrical can that was only 4 inches in diameter and 6 inches long. Small. That meant the cell density had to be just right – too many cells and backpressure would spike, too few and the emissions wouldn't clean up.
Also, weight mattered. Not as much as on a wing, but every pound still counted.
What We Did Differently
We didn't just send them a sample. We spent a week going through their data. Vibration logs. Temperature profiles. Backpressure requirements. Emissions targets.
Then we built a prototype batch of 20 substrates.
Material. We used Inconel 625. Not stainless. Not aluminum. Inconel. It's a nickel‑chromium alloy that stays strong at 750 degrees. Expensive as hell. But it doesn't creep, doesn't oxidize, doesn't crack. For an APU that runs thousands of hours, it was worth it.
Cell density. 300 cpsi. Lower than standard automotive. Bigger cells meant less backpressure through that small can. And the bigger cells were less likely to plug from any soot the APU made.
Foil thickness. 0.08 mm. Thicker than automotive, but not as thick as industrial. We balanced durability with light‑off time. The APU runs continuous, so fast light‑off wasn't critical.
Brazing. We used a high‑temperature nickel‑based brazing filler. Melting point over 1,000 degrees. It would never soften in the APU exhaust.
Mounting mat. We used a dense, high‑temp mat that doesn't take a permanent set. Designed for vibration. We also added a secondary retention ring inside the can – a metal lip that held the substrate in place even if the mat lost tension.
The whole thing weighed about 30% more than their old aluminum substrate. But it was still under their weight budget.
Testing – Real World, Not Just Lab
They didn't just put our substrates on a shaker table. They put them on an actual APU, in a test cell, running real cycles.
Four hundred hours of continuous operation, with temperature spikes to 750 every few hours. Then they shut it down, let it cool to ambient, and started again.
We did 2,000 hours of testing. That's about five times their old substrate's lifespan.
After 2,000 hours, they cut the converter open. The Inconel substrate looked almost new. No cracking. No sagging. The brazed joints were solid. The mat was still tight.
They did a second test on a different APU. Same result.
After that, they ordered 100 pieces for fleet trials. Those have been running for two years now. No failures.
What We Learned
Inconel works. It's expensive – about four times the cost of stainless. But for an aerospace application where a failure means a plane on the ground, that cost is worth it.
Brazing Inconel is different than brazing stainless. The filler has to match the alloy. We had to adjust our furnace cycle – higher temperature, longer soak. The first few samples had incomplete braze flow. We tweaked the cycle and got it right.
The retention ring was a good addition. The mat alone might have held, but with the ring, there's no chance of the substrate moving. Over‑engineered? Maybe. But in aerospace, that's the standard.
Also, documentation. Aerospace customers want a paper trail for everything. Foil certs, braze logs, test reports, dimensional data. We had to upgrade our record‑keeping. But now we have it, and it helps with all our customers.
What the Customer Said
Their project engineer told me: "We've tried four other suppliers. Your Inconel part is the only one that survived our full test cycle. We're spec'ing it into our new platform."
The purchasing guy said: "The price made me choke. But the zero failures made it worth it. We haven't had a single warranty claim on these."
Aircraft exhaust systems are not forgiving. High heat. High vibration. Tight spaces. Long operating hours. Most standard substrates – even good stainless ones – can't handle it.
But Inconel can. With the right cell density, the right brazing, and a mounting system that won't let go.
We built that substrate for one aerospace customer. Now we've made it for two others. The tooling is dialed in. The process is repeatable.
If you have an extreme environment – aviation, military, high‑temp industrial – talk to us. We'll tell you if Inconel is the answer. And if it's not, we'll find something that is. We've done it before.
Case Study: Lightweight & High‑Temperature Resistant Catalytic Substrates for Aircraft
A few years ago, a company that makes environmental control systems for business jets called us. They had a problem. Their ECS – the system that manages cabin air pressure and temperature – needed a catalytic converter to clean up bleed air from the engine. But the space was tiny. The heat was brutal. And weight was critical.
They'd tried a few suppliers. The parts were too heavy. Or they couldn't handle the temperature. Or they cracked on the test rig.
They asked if we could do something lighter and tougher.
The Problem
The ECS sits in the belly of the aircraft. Not much room. The converter had to fit in a can that was barely 100mm in diameter and 150mm long. But it had to process a lot of air flow.
Standard 400 cpsi substrates were too restrictive. Backpressure would be too high. So they needed lower cell density – around 200 cpsi – to keep the air moving.
But here's the kicker. The bleed air coming off the engine could hit 750 degrees Celsius. That's way hotter than a car converter ever sees. Most metal honeycomb would soften and sag at that temp. Aluminum is out of the question. Even standard stainless can struggle.
And the whole assembly had to be light. Every gram matters on an airplane.
What We Proposed
We went back and forth with their engineers for a few weeks. They sent us a drawing of the can. We sent back substrate specs.
We settled on 200 cpsi – bigger cells, less backpressure. Foil material: 347 stainless steel. Not the common 304 or 316. 347 has better high‑temperature creep resistance. It doesn't sag as much when it's hot for a long time.
Foil thickness: 0.04 mm. That's thinner than our standard automotive foil. Lighter, and less metal to heat up. But thin foil is fragile. We had to be careful with handling and brazing.
We also used a special high‑temperature brazing filler. Normal filler would melt at 750 degrees. This one had a higher melting point, so it wouldn't soften during operation.
The substrate was round, small – just 95mm diameter, 140mm long. We made a few samples and sent them over.
The Testing
They put our substrates through a rig that simulated real ECS conditions. Hot air at 750 degrees, flowing through for hours. Then cooling down. Then heating up again. Dozens of cycles.
First test: The substrate didn't sag. Cells stayed round. Good.
Second test: They measured backpressure before and after cycling. No change. That meant the foil hadn't deformed.
Third test: Vibration. They shook it at frequencies typical for the aircraft belly. Our substrate held together. The brazing didn't crack.
Then they coated it with their own catalyst formula and ran an emissions test. Passed with margin.
The weight? Our 0.04 mm foil cut about 30% of the mass compared to a standard 0.05 mm substrate. Not huge, but for aerospace, every gram counts. They were happy.
What Made It Work
The 347 stainless was the key. Most people think 304 is fine for high heat. It's not. Not at 750 degrees continuous. 347 has columbium and tantalum added. Those elements prevent chromium carbide precipitation – basically, it stays strong and doesn't crack.
The thin foil was a risk. 0.04 mm is delicate. We had to adjust our stacking fixtures to avoid denting the edges. And the brazing cycle had to be dialed in perfectly – too hot and the thin foil would warp, too cold and the braze wouldn't flow.
We also had to be careful with the mounting mat. Standard mats start to break down above 600 degrees. We used a high‑temperature mat rated for 800 degrees. It cost more, but it wouldn't turn to dust.
The Result
The customer ordered a small batch first – 50 pieces. Then 200. Then they put our substrate into production for that ECS model.
We've been shipping to them for three years now. No field failures that I know of. Their buyer told me once, "You're the only supplier who got the thermal stability right."
We also learned a few things. Thin foil is doable, but you have to handle it like glass. And 347 stainless is worth the extra cost for extreme heat.
What We'd Do Different Next Time
If another aerospace customer came with a similar request, we'd do a few things faster.
We'd test the brazing filler at temperature before committing to production. That first batch, we had to re‑braze a few samples because the filler didn't flow right. Now we have a qualified process.
We'd also recommend a thermal barrier coating on the outside of the can. We didn't do that – the customer handled it themselves. But it helps keep the substrate from seeing the full peak temperature.
And we'd quote a longer lead time for the first batch. Tooling and process development always takes more time than you think.
Aircraft environmental control systems are not cars. The temperatures are higher. The space is tighter. The weight limit is stricter.
But a metal honeycomb substrate can still work – if you pick the right alloy, the right thickness, the right brazing, and the right mat.
We did it for one ECS supplier. We can do it for others.
If you need a lightweight, high‑temperature catalytic substrate for aviation or any other extreme application, give us a call. Bring your drawings. We'll figure it out.
Catalytic Substrates That Actually Meet Global Emission Standards – EPA, Euro 6, China 6, Bharat VI
If you sell catalytic converters in more than one country, you know the headache. One customer needs EPA. Another needs Euro 6. Some ask for China 6. India wants Bharat Stage VI.
Different names. Different test cycles. Different limits.
But here's the thing – a good substrate doesn't care about the name on the regulation. It just has to clean the exhaust enough to pass whichever test they throw at it.
We've been shipping substrates all over the world for years. We've learned what it takes to meet each standard. Not by reading the rulebooks – by having customers come back and tell us "it passed."
What All These Standards Have in Common
EPA, Euro 6, China 6, Bharat VI – they all want the same outcome. Less CO, less hydrocarbons, less NOx. They just measure it differently and set different deadlines.
EPA is the US standard. Focuses on tailpipe emissions over a specific driving cycle. Pretty strict on NOx for diesels.
Euro 6 is Europe. Tougher on particulates than EPA. Also has real‑driving emissions testing, not just lab cycles.
China 6 is basically Euro 6 with Chinese characteristics. Same technology, same approach. But they moved fast – went from China 5 to China 6 in a few years.
Bharat Stage VI is India's version. Equivalent to Euro 6 but adapted for Indian driving conditions. Hotter, dustier, more stop‑and‑go.
The common thread? They all need a substrate that lights off fast, stays active, and doesn't cost a fortune.
What We Do to Meet These Standards
We don't make one substrate for EPA and another for Euro 6. That's not how it works.
The substrate itself – the metal honeycomb – is the same. It's the cell density, wall thickness, foil material, and coating that change.
For most of these standards, 400 cpsi with 0.05 mm foil is the baseline. That cleans well and flows well. Good for gasoline engines across all regions.
For diesels, we go to 300 cpsi with thicker stainless foil. Lower backpressure, handles heat better.
The real difference is the coating. That's where the precious metals do the work. For tough standards like Euro 6 and China 6, we increase the precious metal loading. More platinum, more palladium, more rhodium. Or we adjust the ratios.
We don't guess. We work with coating partners who have tested their formulations on real engines. They know what loading gets you under the limit for each standard.
EPA – The Old Reliable
EPA has been around a long time. The test cycles are well understood. A good substrate with proper coating will pass.
The challenge is durability. EPA requires the converter to last a certain number of miles. So the substrate has to hold up – no cracking, no delamination, no coating loss.
We use stainless foil for most EPA diesel applications. Aluminum is fine for gasoline. And we test our brazing to make sure it doesn't come apart.
We've had customers pass EPA with our substrates. They come back for more. That's how we know it works.
Euro 6 – Tougher on Real Driving
Euro 6 introduced RDE – real driving emissions. They drive the car on the road, not just on a dyno. That means the converter has to work in cold weather, uphill, with a heavy foot.
That's harder on the substrate. More temperature swings. More vibration. More chance of the catalyst not being fully warm.
For Euro 6, we recommend stainless foil for anything but the mildest applications. And we pay extra attention to the mounting mat – it has to hold the substrate tight through all those real‑world bumps.
A customer in Germany told me once, "We tried your competitor's substrate on RDE. Failed the cold start part. Switched to yours. Passed." That's real feedback.
China 6 – Fast and Furious
China moved from China 5 to China 6 in record time. That meant everyone scrambling to upgrade their aftertreatment systems.
China 6 is similar to Euro 6, but the testing is done in Chinese conditions – more traffic, more idling, different fuel quality.
For China 6, we see a lot of demand for higher cell density – 600 cpsi in some cases. More surface area to catch emissions when the engine is running in stop‑and‑go.
Also more demand for stainless. The heat is real, and the roads are rough. Aluminum doesn't always last.
We ship a lot to China now. Our partners there test the substrates. They tell us what works. We adjust.
Bharat Stage VI – The New Kid
India jumped from BS IV to BS VI directly. Skipped BS V entirely. That was a huge change for the industry.
BS VI is basically Euro 6. Same limits, same test cycles. But Indian driving is different. Hotter ambient temps. More dust. Stop‑and‑go traffic that never ends.
For BS VI, we recommend stainless foil almost always. The heat and dust will kill aluminum. And we go with lower cell density – 300 cpsi – so the cells don't plug up from dust and soot.
One of our customers in Pune told me they tried 400 cpsi aluminum. Failed in six months. Switched to our 300 cpsi stainless. Still running after two years.
How We Verify Compliance
We don't have our own emissions lab. That's not our job. We make the substrate, not the finished converter.
But we work with customers who do have labs. They test our substrates with their coatings and their cans. Then they tell us if it passes.
We keep records of every test. Which substrate, which coating, which engine, which standard. That data helps us recommend the right spec for the next customer.
If you need a substrate for a specific standard, we don't guess. We look at what worked for other customers with similar requirements. If we don't have data, we find a lab to test it.
What We Don't Do
We don't claim our substrates are "certified" for EPA or Euro 6. The finished converter gets certified, not the substrate alone.
We also don't sell you a substrate that we haven't seen work for someone else. If you ask for China 6 and we've never made that part for a China 6 application, we'll tell you. Then we'll work with you to test it.
Honesty is better than a broken promise.
Selling catalytic converters in multiple countries means your substrate has to handle different standards – EPA, Euro 6, China 6, Bharat VI.
The honeycomb itself isn't magic. It's about cell density, wall thickness, material, and coating. We have recipes for each standard. We've tested them with customers. They work.
We don't promise a certificate. We promise a substrate that has passed real emissions tests in real engines. That's worth more than a piece of paper.
If you're exporting converters, talk to us. We'll tell you what other customers in your target market are using. And we'll ship you the same thing. No guesswork. Just what works.
How Our Catalytic Substrates Reduce Your Overall Production & After‑Sales Costs
I've talked to enough shop owners and production managers to know how they think. They look at the price of a substrate and multiply by how many they need. Lowest number wins.
But that's not the whole math.
I've seen people buy cheap substrates and end up paying more overall. Scrap during assembly. Comebacks from customers. Warranty claims. Time on the phone. Shipping costs. Angry reviews.
Our substrates cost a bit more upfront. But they save money downstream. Here's how.
Fewer Parts Damaged During Assembly
If you're canning your own co品nverters, you know the drill. You wrap the mat, press the substrate into the can, weld it up. Sometimes the substrate cracks. Sometimes the mat bunches up. Sometimes the whole thing goes in crooked.
That's scrap. You eat the cost of the substrate, the mat, the can, and your labor.
Our substrates are straight. Cell alignment is true. The dimensions are consistent batch to batch. That means they press in smoothly. No surprises. Less scrap.
I had a customer who was crushing about 8% of the cheap substrates he bought. Switched to ours. Crush rate dropped under 1%. That alone paid for the price difference.
Less Rework on Your Assembly Line
Even when a cheap substrate doesn't get scrapped, it might cause problems downstream. Maybe it's slightly oval. Maybe the length varies a few millimeters. Maybe the cells are crooked.
Your assembly line people have to adjust. Shim here. Tap there. Force it. That takes time. Time is money.
Our parts are the same every time. Same diameter. Same length. Same cell geometry. Your line runs smooth. No stopping to fiddle with a part that doesn't fit.
One customer told me they saved two hours per shift after switching to our substrates. That's not just substrate cost. That's labor cost. That's throughput.
Fewer Warranty Claims in the Field
This is the big one. A converter that fails in the field costs you a lot more than the part.
You pay for the replacement substrate. You pay for the shop's labor to swap it. You pay for shipping both ways. You might pay for a rental car for the customer. And you lose future business if they don't trust you anymore.
We've seen cheap substrates fail from bad brazing, thin foil, poor coating, or mismatched materials. Our substrates are built to last. Peel tested. Flow tested. Thermal cycled. We know what they can handle.
A fleet customer switched to our substrates and cut his warranty claims by 70% in the first year. He said the upfront cost was higher, but the savings on comebacks made it a no‑brainer.
Less Downtime for Your Customers
When a converter fails, the vehicle or equipment stops. A delivery van misses a day of routes. A generator shuts down. A tractor sits in the field.
That downtime costs your customer real money. And they remember who sold them the part that failed.
Our substrates are reliable. They don't crack from normal vibration. They don't plug up from dust. They don't melt from normal heat cycles. Your customers stay running. They stay happy. They come back to you.
I had a guy with a fleet of airport shuttles. Cheap converters were failing every 18 months. He switched to ours. Three years later, no failures. He told me the savings in downtime alone paid for the upgrade.
Easier Installation Means Lower Labor Cost
If you're selling converters to shops, installation time matters. A converter that bolts in easy saves the mechanic time. That means a lower bill for the customer and a happier shop.
Our substrates have accurate flange dimensions. The mounting mat compresses right. The oxygen sensor bungs are where they should be. No fighting to make it fit.
One shop owner told me he could install our converter in 45 minutes. The cheap brand took an hour and a half because he had to modify the pipes. He charges the same labor either way – so he made more profit on ours because he finished faster.
Longer Life Means Repeat Customers
When you sell a quality product, customers remember. When you sell junk, they remember that too.
Our substrates are designed to last the life of the vehicle for most applications. That means your customers don't have to buy another converter from you next year. But they will recommend you to their friends. And they'll come back for other parts.
I've seen shops build their whole reputation on using quality parts. They charge a fair price. They don't have comebacks. Their customers trust them.
Technical Documentation & Training Support for Your R&D & Production Teams
We sell a lot of substrates. But we've learned that the part itself is only half the job. The other half is making sure the customer knows what to do with it.
I've seen customers struggle with a perfectly good substrate because the documentation was confusing. Or because nobody showed their production team how to handle it. Or because the R&D guys had a question at 10 PM and couldn't get an answer.
So we started doing more. Technical docs. Training. Support. Not just shipping a box and hoping for the best.
Here's what that looks like.
What We Give You Before You Even Order
Before you buy anything, we send you technical data sheets. Not the kind that just say "good for emissions." Real numbers.
Cell density. Wall thickness. Foil material. Backpressure at standard flow rates. Thermal limits. Vibration tolerance. Coating options. Precious metal loading.
We also send dimensional drawings. CAD files if you need them. So your R&D team can design the can and the exhaust system around the substrate, not the other way around.
We've had customers try to design a converter without the substrate dimensions. They always end up with something that doesn't fit. Then they have to rework. That costs time and money. We try to prevent that.
Documentation That Comes With the Order
When we ship a batch, you get a few things.
Certificate of Analysis. Shows the test results for that specific batch. Cell density check. Flow test. Braze peel test. Dimensions. Everything we measured.
Material certificate. Where the foil came from. What alloy. What thickness.
Handling instructions. How to unpack. How to inspect. How to store. Substrates are fragile before they're canned. Don't drop them. Don't stack heavy boxes on top. Don't leave them in the rain.
Installation guide. For customers who can their own substrates. How to wrap the mounting mat. How to press it into the can. What pressure to use. What to check after.
We write these in plain English. No jargon. No assuming you already know things.
Training for Your R&D Team
Sometimes your engineers have questions that a data sheet can't answer.
What happens if we use a thinner foil? How much faster will it light off? How much durability do we lose?
Can we run this substrate at 750 degrees? For how long? What's the failure mode?
We do these substrates every day. We've seen what works and what doesn't. We're happy to get on a call and walk through the trade‑offs.
We've done training sessions for R&D teams remotely. Screen sharing, drawings, test data. Sometimes we send samples for them to cut open and inspect themselves.
One customer wanted to understand how our brazing compared to another supplier. We sent them a batch of uncanned substrates and a set of peel test instructions. They did their own tests. They saw the difference. They've been ordering from us ever since.
Training for Your Production Team
The R&D guys figure out what substrate to use. Then the production team has to put it in the can without breaking it.
That's where things can go wrong.
We've visited customer plants and watched them struggle with canning. The press was too fast. The guide cone was missing. The mat was the wrong density. The operator was guessing at the pressure.
So we started offering training for production teams.
We show them how to wrap the mat evenly. How to center the substrate in the can. What the press should feel like – not too hard, not too soft. How to check for cracks after canning.
We also give them a simple go/no‑go gauge to check the can diameter before they start. If the can is out of round, the substrate won't fit right no matter what they do.
One customer had a 10% crack rate during canning. We spent a day with their team, adjusted their press speed, added a tapered guide, and gave them a torque spec for the clamps. Crack rate dropped to under 1%.
What About Coating?
We don't coat in‑house. But we work with coating partners. And we help customers understand the coating process too.
We can provide documentation on washcoat and precious metal application. Not the proprietary formulas – those belong to the coaters – but the basics. How thickness is controlled. How loading is measured. What to look for in a quality coating.
If a customer wants to coat their own substrates, we can connect them with our partners. Or we can give general guidance on what a good coating process requires.
After‑Sales Support
Things go wrong sometimes. A substrate cracks in the field. A customer gets a check engine light. They think it's our part.
We ask them to send the converter back. We cut it open. We figure out what happened.
Sometimes it's our fault. A brazing issue we missed. A coating that didn't take. We replace the part and fix the process.
Most of the time, it's not our fault. The engine was misfiring. The fuel was bad. The can was out of round. The mat was installed wrong. We show them the evidence – photos, test results – and help them fix the real problem.
We don't just say "not our problem." We help them understand what went wrong so they don't repeat it.
What Customers Say
I've had R&D managers tell me they appreciate the honest answers. "We asked your competitor about a custom shape and they said yes without asking any questions. You asked about the application, the temperature, the duty cycle. That gave us confidence."
I've had production supervisors tell me the training saved them money. "We were crushing 10% of our substrates. After your guy came, we crushed maybe one a month."
I've had purchasing people tell me they like the documentation. "Your cert packs are complete. No missing data. No guessing."
That's the goal. Not just selling a part. Helping the customer use it right.
What We Don't Do
We don't charge extra for documentation. It's part of the order.
We don't charge for basic technical support. A phone call here, an email there – that's included.
We do charge for on‑site training. Travel takes time. But we're reasonable. And customers usually save more in reduced scrap than they spend on the training.
We don't share proprietary customer data. If we work with two customers in the same industry, we keep their information separate.
A catalytic converter substrate is a component. But it's a component that needs to be handled, canned, coated, and installed correctly. If any of those steps go wrong, the part fails – even if the substrate itself is perfect.
That's why we provide documentation and training. Not as an afterthought. As part of the product.
Data sheets. CAD files. Certificates. Handling guides. Installation instructions. Remote support. On‑site training. Failure analysis.
We want your R&D team to design the right system. We want your production team to assemble it without breaking parts. And we want to be there when you have questions.
Because a substrate that fails in the field because of bad documentation or poor training isn't just your problem. It's our reputation too. So we help. That's the deal.