Exhaust coating from Eastwood

[weq92f]

.

There is a large amount of marketing content for this stuff out there and not very much real world usage data. Automotive forum searches turned up a lot of inquiries and folks saying they would test it but not much followup with results. Here's what I found:


Here's a short discussion some members here have had:

https://67-72chevytrucks.com/vboard/...d.php?t=822179


This appears to show data backing up some of the claims:

https://www.onallcylinders.com/2018/...haust-coating/


Product reviews from Summit Racing (5 reviews, one is interesting):

https://www.summitracing.com/parts/zyc-10008/reviews

Hth,

-Kevin

[MS66]

Originally Posted by weq92f

.

There is a large amount of marketing content for this stuff out there and not very much real world usage data. Automotive forum searches turned up a lot of inquiries and folks saying they would test it but not much followup with results. Here's what I found:


Here's a short discussion some members here have had:

https://67-72chevytrucks.com/vboard/...d.php?t=822179


This appears to show data backing up some of the claims:

https://www.onallcylinders.com/2018/...haust-coating/


Product reviews from Summit Racing (5 reviews, one is interesting):

https://www.summitracing.com/parts/zyc-10008/reviews

Hth,

-Kevin

Kevin, thanks for the post and links. Best one yet. I agree, lots of hype with no real meat to go with the claims. Even the so called tests done at Karl's Kustoms is just a JPG graph with no documented proof to back up the claims in the graph.
I doesn't appear that custom10nut ever posted back on coating anything.

The reviews on Summit are most likely the best evidence so far.
This is a response from "Zycoat Technical services" to a guy named Andy that gives it 1 star rating, says to save your money. lol

"Andy / can you provide any additional detail on how you measured surface temperature before the ZyBar coating and after it was coated? What device was used? What time span were measurements taken? Any additional input you can provide would be beneficial to respond to your statements.
I can tell you we have data from NHRA Top Fuel, Sprint Car circle track, Diesel Drag and Drag & Drive that prove -
Significant radiant heat reduction, reduced back pressure, reduced spool time and underhood temperature reduction. Please share data that you have and we can assess your situation. Thank you, ZyCoat Technical Services"

Where is the data that he/they speak of, and where is their video footage detailing the test procedure? He mentions time span. At what point in time does it actually do what it claims to do? At 10.000 rpm going 290 for 3 milliseconds???


'68Orange, not sure what you used back then. Lots of horror stories about wrapped headers rusting out quite often. Just not a fan of the wrap, even though it does keep under hood temps down. I like what headers do for performance, don't miss all the heat, going to stick to factory manifolds on my daily.

FWIW, this is one of those "asking for a friend" questions for real. I actually posted this thread to get feedback for a good friend of mine that is going through this very thing on his '67 C10 as we speak. High horse SBC with coated Hedman shorty Hedders. Under hood temps off the chart. He wraps them, swears by it. This is his second pair, first pair lasted about the same time as what you speak of, about 7 years. I'm trying to help him out with something besides header wrap. I'm a firm believer in heat shields because they work. Look horrendous, but they work. Hot rodding is sometimes a compromise in form over function. Because who wants to open the hood to see a piece of nice brushed SS sheet metal covering up those rusty headers!! wait.

['68OrangeSunshine]

Originally Posted by MS66

'68Orange, not sure what you used back then. Lots of horror stories about wrapped headers rusting out quite often. Just not a fan of the wrap, even though it does keep under hood temps down. I like what headers do for performance, don't miss all the heat, going to stick to factory manifolds on my daily.
.

The ceramic coating stuff I got from Eastwood, they don't sell anymore. I don't get their current catalogs, and I did not save the original catalog.
Stuff was Black. Only color available then. Reasonably priced, but I had to buy a second halfpint can. I shot my Heddmans inside and out. I thought with that and my arid Arizona climate, they'd last forever. I had never tried mummy wrap before, and didn't read the fine print on my Heddman warranty.
Hedders were sandblasted, then shot with brake cleaner, dried and shot with the black goop. After they were only a bit tacky, I put them both in Mom's old Hotpoint range and baked at 500*F for at least 2 hours. Paint from the upper dripped onto the lower bank. I figured that was just a cosmetic blem. [I don't think that's where the rot started. ]
After putting the DEI wrap on, I did not coat the wrap with anything.

I put a Mr. Goodwrench crate 350 in my '71 GMC Jimmy in 1999. The OEM ramshorn manifolds that were on the PO's SBC were mismatched. One had 4 ports -- capped off -- for A.I.R. and the other was pre-emissions. I elected for the Heddmans, as repop ramshorns were rediculously priced.
Hedders were 7 - 8 years old when I coated and wrapped them. Then they lasted 7 years more.
I am no longer a fan of Mummy Wrap.

[Already Gone]

I had the Rams Head Manifolds for my new engine done by Top Gun Coatings in Calgary and they guaranteed them for life. I've only put on 13/1400 miles on the engine so far but are holding up well. They also did my Edelbrock 2101 and guaranteed it as well. https://www.topguncoatings.com

[LNP]

I never heard of it before here today. I spray professionally powder and ceramic coatings. I use ceramic coating made for exhaust and have never had a failure. Hope I didnt just jinks myself. lol That stuff is kinda high in price as well with the claims. It runs $79.99 for a 1/4 of a pint (4oz). I buy ceramic coatings made for exhaust for $70.00 a pint (16oz). As for the heat reduction I am not sure with this chemical but the ceramics I use do reduce heat. Thats why bikers love it on their exhaust.