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Building Tips and technical articles. => Paint and finishing => Topic started by: t michael jennings on February 09, 2012, 05:47:04 PM

Title: Nitrate Dope Gas-Off
Post by: t michael jennings on February 09, 2012, 05:47:04 PM
Gentlemen,

How long should one wait after spraying on a light coat of SIG Nitrate clear dope before spraying on a color KlassKote of color?

The first coat is a primer,
            sanded and
                  another light primer coat. 
Then a 75% thinned coat of SIG Nitrate clear dope?


Plan to spray a color KlassKote.

How long should I wait.


Thanks for your answers.

T Michael Jennings    :!


Knoxville, TN.
Title: Re: Nitrate Dope Gas-Off
Post by: Bill Little on February 09, 2012, 06:15:14 PM
Wait at least until you cannot smell it.

BIG Bear
RNMM/AMM
Title: Re: Nitrate Dope Gas-Off
Post by: bill bischoff on February 15, 2012, 07:30:57 AM
I waited 2-3 weeks, but it was easy because the weather was bad anyway.
Title: Re: Nitrate Dope Gas-Off
Post by: Clint Ormosen on February 15, 2012, 06:09:07 PM
Quote from: bill bischoff on February 15, 2012, 07:30:57 AM
I waited 2-3 weeks, but it was easy because the weather was bad anyway.

Yeah, I agree. Minimum 2-3 weeks. But of course, the longer you can wait, the better. Just don't try to rush it or you'll be sorry.
Title: Re: Nitrate Dope Gas-Off
Post by: billbyles on February 17, 2012, 09:53:10 AM
Quote from: t michael jennings on February 09, 2012, 05:47:04 PM
Gentlemen,

How long should one wait after spraying on a light coat of SIG Nitrate clear dope before spraying on a color KlassKote of color?

The first coat is a primer,
            sanded and
                  another light primer coat. 
Then a 75% thinned coat of SIG Nitrate clear dope?


Plan to spray a color KlassKote.

How long should I wait.


Thanks for your answers.

T Michael Jennings    :!


Knoxville, TN.

Why the nitrate clear over the primer if you are going to use Klass-Kote epoxy over it?  Epoxy will go over primer just fine with good adhesion; the nitrate won't do anything for the finish & introduces possible intercoat adhesion problems due partly to the shrinkage of the dope film as it continues to dry (& dope will continue to dry & leach out plasticizers over the life of the finish.)  Just wondering.