Exhaust hardcoat

Harry Babb · Post by **Harry Babb** » Oct 12th, '08, 22:32

I have seen exhaust systems that have a Black Hardcoat Insulation on the "Hot Section" between the engine and the shower head.

Do you guys know where the Hardcoat material can be purchased????

I have searched the internet with no luck. I have been told that its not a good idea to put the Hardcoat insulation on my pipes but I want to do it anyway......it sure makes a good looking.....

Can you help me find this stuff.........it can't be that hard to apply

Harry

CaptPatrick · Post by **CaptPatrick** » Oct 13th, '08, 05:37

Harry,

Thermo-Tec is possibly the best material for hard wraps...

For marine exhaust sweeps, it has to be oven cured. I'm guessing around 500ÂºF & for probably around 30 minutes. After cooling, blow off any dust with light air pressure & then coat with Thermo-Tec's High Heat Coating. To get a smooth surface, it'll take several coats.

Curing is a smokey & stinky process. Don't do this in Momma's oven...

Br,

Patrick

RussP · Post by **RussP** » Oct 14th, '08, 04:07

Harry, it may be easier to have lagging made for the pipes. If you ever need to break the exhaust system you just clip the wires and remove and reinstall when the system goes back together.

RussP

Harry Babb · Post by **Harry Babb** » Oct 14th, '08, 15:24

Thanks Russ
I am not really sure what "Lagging" is..........

Can you explain and post a pic........I am certainly open to other ideas.

Harry

CaptPatrick · Post by **CaptPatrick** » Oct 14th, '08, 16:15

Harry,

Lagging=Insulating Blankets

Br,

Patrick

RussP · Post by **RussP** » Oct 14th, '08, 18:56

Thanks Capt.

RussP

Harry Babb · Post by **Harry Babb** » Oct 14th, '08, 21:22

Thanks guys
I kinda had my heart set on the smooth black hardcoating. My thoughts are that it will be very durable and pretty easy to apply right here in my backyard.

Another boater buddy told me that a downside is that this type of insulation will trap moisture and damage the pipe........I answered that by making my pipe out of 316 SS......Russ has a very good point about being able to remove the blanket for the service of a broken exhaust pipe....

What about it........anyone else have any thoughts......good or bad either way???

Harry

[img][img]http://i147.photobucket.com/albums/r289 ... haust1.jpg[/img][/img]

CaptPatrick · Post by **CaptPatrick** » Oct 14th, '08, 21:30

Harry,

My choice?? Neither... Your sweep is a water cooled, double jacket, right? If so, both coverings are over kill on a B31. Keep that 316 polished up & think of it as chrome on a Harley....

Br,

Patrick

Harry Babb · Post by **Harry Babb** » Oct 14th, '08, 21:42

Captian Pat
My sweeps are a single wall 316 SS pipe with a shower head connection where the pipe meets the fiberglass "Y" pipe.

That's why I really need to insulate.

Harry

[img][img]http://i147.photobucket.com/albums/r289 ... G_2614.jpg[/img][/img]

CaptPatrick · Post by **CaptPatrick** » Oct 14th, '08, 22:08

OK, in that case I'd go with custom blankets. To hard wrap that much pipe would take an incredible amount of wrap and weigh a ton.

GSI, (link in previous post), is in Ft Lauderdale & I've personally seen their work. Top Shelf...

Br,

Patrick

bertram31.com

Exhaust hardcoat

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