Topic: Thermal barrier for exhaust

[CBGBs]

I am trying out a product by Cycle Shack called Chrome Guard. It is a substance which will coat the inside of new pipes to form a Thermal barrier and help to keep the chrome all pretty. I thought that since these Mac pipes are so thin that this might be a good idea. Any thoughts?

[bill440cars]

         Never had any dealings with it but, I am interested to know how it turns out. Maybe there is someone who has had some experience with it or a similar product. LOL

                                                 Later on, Bill

[CBGBs]

This stuff is a powder that is disolved into 7 oz of water and then first aplied to the inlet area of the header. Just a teaspoon in each. Rotating the pipe to get good coverage, and then cured with a hairdryer. After 30 min. the rest of the mixture is applied to the rest of the header, giving an extra layer to the first 3 inches of header.  And then an hour of hairdrying. Sounds easy enough but applying this to a one piece 4 cyl header will make it a little more difficult to evenly coat. Sounds interesting to me.

[ProTeal55]

We tried that exact product at the last v-twin shop I worked at with poor/no results.
Maybe u will have better luck with a smaller motor (vs. a large displacement v-twin?)

[CBGBs]

I think this stuff is basically a ceramic coating, isn't it. This is powdered clay just add water. Only this stuff isn't as smooth as ceramic clay would be. Its very gritty. Wouldn't I be better off buying some pottery clay and watering it down? It would come out much smoother.

Proteal, what went wrong with the stuff? Was it just chunky and hard to apply well?

[CBGBs]

Here's some photos.
You can see the gritty muck covering the inside of the pipes.
You can see the hairdryer curing the muck.

[cafe75-550]

Looks like a good way to increase exhaust restriction and decrease exhaust gas velocity to me...

[CBGBs]

Thats what I'm afraid of.    I think I'll not go farther that I have, which is about 6-7 inches, and try to smooth out the surface with some rolled sandpaper.

[schneider419]

I've never tried this, but the guy at the local bike shop said they used to take the pipes and just spray hi-heat paint down the inside of the pipes. it coats the inside of the pipes, let it sit for awhile, and bolt em back on.

[ProTeal55]

I've never tried this, but the guy at the local bike shop said they used to take the pipes and just spray hi-heat paint down the inside of the pipes. it coats the inside of the pipes, let it sit for awhile, and bolt em back on.

We tried all sorts of high heat paint to try and keep the chrome from "blueing" with no good results.
Might hold off the blue for alittle while, but after a few heat cycles it comes back.
Only way to have true blue free chrome pipes is for the pipes to be double walled, this way the chrome is actually not on the real pipe holding the exhaust, thus no blue...

Proteal, what went wrong with the stuff? Was it just chunky and hard to apply well?

The stuff was just crap, and ended up flaking/cracking off and shooting out the exhaust.
Hopefully u will have batter results, as you arent putting this stuff up to a 154 C.I.D monster V-Twin like we did..

[CBGBs]

Well, I tried something new and didn't like it. You can learn off of my foolishness. This stuff might be OK for some ratty cruiser, but not for my CB400f. Chrome Guard is dried mud in a $10 can. I paid for dirt in a jar. This product may work but at the expense of exhaust flow. If you really want to do this, I would suggest getting some pottery clay for nothing from some local studio and thin it out for a better quality ceramic.

I used a wet rag, brush and garden hose to clean almost all of this stuff out.
If it holds to Proteal (Sideburns) experience the remainder will flake off with use.

Cycle Shack makes this product and their logo says it all. Its got a hillbilly shack on the back of a chopper.
This stuff is Hillbilly all the way.