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Old 05-02-2013, 07:29 AM   #18
ttpete
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Joined: May 2009
Location: Dearborn, MI
Oddometer: 5,308
Quote:
Originally Posted by bwringer View Post
Who said anything about a plastic tank?


Anything that would dissolve Kreem (we seem to have votes for both acetone and MEK here; dunno which is better or correct) would also run the risk of damaging a plastic tank, so you'd need to consult a polymer chemist...

But yeah, I know the POR15 stuff is rock-hard when it sets up, so it would be a pretty bad idea with a plastic tank for that reason alone. I haven't seen a sample of the cured Caswell stuff.
There are lots of plastic tanks out there. Some swell up, others delaminate from today's witches' brew everyone thinks is gasoline. I've never seen a plastic tank that's been Kreemed, so I wouldn't comment on how to get it out.

Caswell is a phenolic epoxy that sets up almost clear with a slight yellowish cast. It works well as long as the instructions are followed exactly. I've used it on rigid plastic tanks with good results. I don't think anything would work well with the flexible polyethylene tanks sold for dirt bikes.
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