nahasapeemapetalon

iTrader: (9)

I have used regular por-15 for my 9" rear, it worked very well and im pleased with that. I am currently grinding and preping my underbody for POR-15.
I saw chassis coat as a top coat to por-15, Has anyone used this?
How much por-15 would it take to cover the underside from rear end up to the back of the engine bay? Quart?

Thanks!

socmguy

iTrader: (18)

haven't used the top coat stuff but I did POR15 the **** out of my frame where some rust got to. You should be just fine with a half gallon. That stuff really goes a long way.

nahasapeemapetalon

iTrader: (9)

Takes two quarts huh? Ill prly put 4-5 coats on, unless I do that chassis coat. So nobody has used it? I might try...

FirstYrLS1Z

iTrader: (4)

POR-15 'bonds/cures'(with the help of atmospheric humidity) to the metal/rust/oxidation surface layer.More than 1 layer/coat of POR-15 is a wrong application.Use the 'chassis coat' to coat that 1st layer/application of POR-15.

nahasapeemapetalon

iTrader: (9)

STIR CONTENTS GENTLY AND THOROUGHLY before painting.
Do not shake.
Refrigerate unused portion of POR-15 for longer shelf life.

Apply in thin coats, 1 to 2 mil thickness. Minimum 2 coats.

It recommended more in marine applications...i think under body of a car would apply. maybe 4 is over kill....
Topcoat when first coat is dry but with slight finger-drag remaining, usually 4-5 hours.