[DeTomaso] Metal Treatment for overflow tank

JDeRyke at aol.com JDeRyke at aol.com
Thu Jan 6 13:49:32 EST 2011

In a message dated 1/6/11 8:19:36 AM, cengles at cox.net writes:

> I was told that there was an "appearance" coating that was similar to the 
> header recipe and could be used on such things as water pipes, tanks, 
> pulleys, engine covers, etc, etc.
There are two powder-cure temperatures: the 'high heat' one used on 
headers, wheels etc is over 350 F, which is where low-temp solders melt. The lower 
temp coatings go on around 200 F and are safe with solders. But you may 
still get thermal cracking of the coating inside. Hot water doesn't work like 
gasoline so most tank sealants are ineffective.

All platings are made of multiple layers of crystals; they are not a 
continuous coating so there's   always the possibility of water worm-holing its 
way down to rustable metal. Both stock tanks after about Sept '72 were 
nickel/copper plated by Ford/DeTomaso at the factory, and even then if you do NOT 
change antifreeze each year, they can rust. Bottom line: brass, stainless 
steel or aluminum tanks will not rust. Until then, change the antifreeze EVERY 
12 months. Good luck- J Deryke

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