Having tested this stuff under my oil-filler-cap for a year or so, I think we might try it in other places.





Of course, the important thing, is that this green material matches my truck color....

Thoughts?

 

Well your cooling system (thermostat housing) should never get hot enough to damage it. Does it distort when you tighten down on the bolts?

 

It does 'squish' a tiny bit. But nowhere near enough to get near the inside thermostat flow-hole. It is greatly reduced at that point.

 

Vertical flow radiator systems like our Bumps takes a 13# cap. Not like the later model horizontal flow radiator systems which upped it to a 16#. But at even 13#, I 'm not sure those silicone gaskets will hold.

 

Let us know how it does. I like the idea of using it under the oil fill cap, shouldn't fall apart from the heat or the oil.

 

Generally silicon gasket sheet has a cloth reinforcement layer to prevent blowout, so I'm not sure how those will perform.

 

Novel idea. I think it would be fine under radiator cap or oil filler cap or gas cap. But honestly if I'm going to make a gasket I would use gasket material or get the gaskets from local parts store. Not that what you have done won't work but I like to know what I've done is a good job.One and done. I don't like to waste money, but I prefer to do it right the first time. Let us know how this works.

 

The silicone gasket has been installed, no leaks, and I'll report back with some mileage.

There was no squish-out. This material is thicker than the paper kind.

If you don't have time for RTV to cure, this is certainly faster.

For some stupid reason, I like to use material that is similar to the color of the truck.
<Insert silly grin>

 

Good thing your truck isn't pink!

 

The cork gasket on the fuel sending unit for my truck was pretty well destroyed, probably thanks in part to ethanol gas, since ethanol eats up cork gaskets.

I got some Teflon cutting board sheets from Wal-Mart and made a new sending unit gasket out of it. That's been about 3 years ago and no leaks from it.



I also made an oil filter/cooler adapter gasket from the Teflon.





But, the original reason I bought the sheets was to make a mask to cover the friction surfaces of the new rotors to paint them before installing them on my truck.

 

Now there's a great idea. Using it for the gas sender is brilliant.
Out of curiosity, how did you determine it was made of PTFE?

 

After a little digging, I discovered the sheets are actually polypropylene and not Teflon. Even so, polypropylene is still impervious to ethanol.

http://iqlearningsystems.com/ethanol...patibility.pdf

 

There is going to be a shortage of cutting mats at walmart this weekend.

 

This definitely works.

I just did a 'stupid-thing' test! Leaving a piece of cardboard in front of the radiator, driving at (legal) 75 on the Freeway, on a 73F day, then pulling off and stopping at a red-light. I got a big burst of steam out of the radiator.

Gaskets are unmolested. Also have taken it through multiple warmups from 15F.
Gotta love the crazy temperature swings in Colorado.

Pink, ha! But available in Red!