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Old 11-10-2020, 09:16   #1
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Exhaust Riser Wrap, Muffler Tape coverings

Looked through the Forum, didn't see the Thread.
Apologies if this is a FAQ.

Had a new Exhaust Riser welded up, installed it and wrapped with Muffler Tape.
I see other systems that instead of raw tape, have a nice white covering.
I'm not going to do the fancy silver blanket, but i would like to clean it up.

I have to duck under the Riser run (lateral) every trip to the workbench,
so it not shedding fibreglas on my head would be ace.

What gives a nice clean look and is durable in a hot environment?
Many thanks, LB
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Old 11-10-2020, 10:22   #2
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Re: Exhaust Riser Wrap, Muffler Tape coverings

I wrapped my very hot dry exhaust coming off the mainfold with fiberglass batting (NO paper backing) and then fiberglass webbing tape. It does not shed, protects me against careless touches, and is going strong after 8 years. It was an inexpensive solution, and looks tiddy.
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Old 11-10-2020, 10:29   #3
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Re: Exhaust Riser Wrap, Muffler Tape coverings

I used this on mine and am happy with it. You can hold it with the engine hot and running and only one wrap on pipes.
https://www.amazon.com/LEDAUT-Titani...2437251&sr=8-6
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Old 11-10-2020, 10:43   #4
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Re: Exhaust Riser Wrap, Muffler Tape coverings

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Originally Posted by kmacdonald View Post
I used this on mine and am happy with it. You can hold it with the engine hot and running and only one wrap on pipes.
https://www.amazon.com/LEDAUT-Titani...2437251&sr=8-6
That's exactly what I wrapped it with, and it does shed itchy particles.
I'd like to find something to cover that with that looks cleaner and seals it.
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Old 11-10-2020, 12:01   #5
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Re: Exhaust Riser Wrap, Muffler Tape coverings

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Originally Posted by tkeithlu View Post
I wrapped my very hot dry exhaust coming off the mainfold with fiberglass batting (NO paper backing) and then fiberglass webbing tape. It does not shed, protects me against careless touches, and is going strong after 8 years. It was an inexpensive solution, and looks tiddy.

I will need to do this same thing soon and your solution sounds good.

When you mention "fiberglass webbing tape" are you talking about this type of material? How did you finish the end wrap, w/a wire twist?

Did you use a high temp silicone spray to seal it?
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Old 11-10-2020, 12:31   #6
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Re: Exhaust Riser Wrap, Muffler Tape coverings

That tape looks similar, Bill. It's been ten years, so I'm not super sure.

I learned to tie things up with stainless steel safety wire while maintaining a small airplane. Once you get used to it, tightening it up is easy. Now I stock three diameters (.021, .035, .045) for various jobs, from hanging pictures to clamping fuel hose on a couple of antique motorcycles. Good stuff. In the case of the exhaust, I laced it as if I was furling a sail on a boom.
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Old 11-10-2020, 13:12   #7
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Re: Exhaust Riser Wrap, Muffler Tape coverings

Quote:
Originally Posted by tkeithlu View Post
That tape looks similar, Bill. It's been ten years, so I'm not super sure.

I learned to tie things up with stainless steel safety wire while maintaining a small airplane. Once you get used to it, tightening it up is easy. Now I stock three diameters (.021, .035, .045) for various jobs, from hanging pictures to clamping fuel hose on a couple of antique motorcycles. Good stuff. In the case of the exhaust, I laced it as if I was furling a sail on a boom.

Yes relatively inexpensive, but not sure I need 100 ft if it will last me a decade.


Have a small spool of the SS wire on the boat and agree is very handy for multiple uses.


The silicone spray looked interesting. This is used more in automotive to keep moisture out and not sure I will need it since my new dry stack is SS pipe. Downside is they want you to cure it to 400F which is easier to hit on petrol exhaust systems than diesel. Will have to take the laser temp probe to see what the dry stack temp hits before purchasing the silicone spray.
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Old 11-10-2020, 18:07   #8
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Re: Exhaust Riser Wrap, Muffler Tape coverings

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Originally Posted by LobeliaBlue View Post
That's exactly what I wrapped it with, and it does shed itchy particles.
I'd like to find something to cover that with that looks cleaner and seals it.
I reckon you could slather RTV silicone over the fibreglass wrap & that would seal it. I haven't tried it, to be clear, as just thought of it but I think I will as I'm a bit sick of seeing fibreglass or ceramic fibres sitting on the air cleaner.
You can get pretty white silicone if that takes your fancy.
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Old 12-10-2020, 06:32   #9
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Re: Exhaust Riser Wrap, Muffler Tape coverings

You'd be best just having an insulation blanket made up for your. Small cost to pay, for something that will solve your probably
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Old 12-10-2020, 08:30   #10
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Re: Exhaust Riser Wrap, Muffler Tape coverings

Years ago when I owned and operated a commercial fishing boat with a dry stack exhaust, the approved method to cover the section in the engine room was fiber glass tape painted over with a product called "Water Glass " . This provided a smooth hard finish when cured. It's like a clear varnish that has high heat capable properties.
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Old 12-10-2020, 08:46   #11
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Re: Exhaust Riser Wrap, Muffler Tape coverings

I had a riser made and after installation they wrapped it with something that was like a strip of THIN cloth which turned hard, kinda like using plaster of paris, like an old fashioned cast on your arm. It was cheap. It wasn't the thick fiberglass impregnated cloth mentioned above. I have used that though and have a short piece here. I dont know what it's called, but when done it looked very tidy and nice and was some form of insulation material.
??

It may have just been "Refractory Mortar" applied with thin fiberglass tape. Applied by hand and smoothed by hand. Dry in an hour or so.

There are plenty of high heat tape kits sold by the hot rod suppliers like Summit Racing.
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Old 12-10-2020, 09:28   #12
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Re: Exhaust Riser Wrap, Muffler Tape coverings

Try this: https://www.amazon.com/Thermo-Tec-12.../dp/B000A8QMUO
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Old 12-10-2020, 10:39   #13
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Re: Exhaust Riser Wrap, Muffler Tape coverings

This is the ticket: https://www.suremarineservice.com/He...-441B-1FT.html

Sold by the foot; easy to remove and re-install when (not if) the exhaust component needs inspection or service.

They also fabricate covers for exhaust cannisters such as: https://www.suremarineservice.com/He.../W002-744.html (note that the price includes the SS cannister!)

I believe that Sure Marine can fabricate a custom cover if you provide the dimensions.
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Old 12-10-2020, 11:10   #14
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Re: Exhaust Riser Wrap, Muffler Tape coverings

My experience in using muffler / heat wrap is that it will trap moisture. So unless whatever you wrap is made of stainless, it will eventually cause rust under the wrap.
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Old 12-10-2020, 17:47   #15
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Re: Exhaust Riser Wrap, Muffler Tape coverings

This may be the product you are looking for: Foster 81-42W LAGFAS Adhesive/coating. fosterproducts.com. I have had good results with it.
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