Primer blocking question

[JS29]

Go to there web sight. But off the top of my head you reduce it more, It sprays out finer and smother. 

[Cuda Cody]

   Sealer lays down smoother for the final paint.

[fireguyfire]

Ok; I'll go to their site; I'm guessing 4:1(activator):2(reducer) might be about right

[JS29]

Ok; I'll go to their site; I'm guessing 4:1(activator):2(reducer) might be about right

That would be a good guess! 

[fireguyfire]

I see in my mixing cups there is a 4:1:1.5 column, so that might be it.

[JS29]

That sounds about right. Still check with the manufacture first. 

[fireguyfire]

Found the mixing ratio on the BASF site for use as a sealer; instead of 4:1:1 it needs to be mixed 3:1:1

[JS29]

   PPG is more reducer from what i remember. 

[torredcuda]

Just a side question. What exactly is a sealer, or why is it called that? When I think of a sealer, I think of it being sealed off. If I remember correctly my primer said just reduce more and it is now a sealer. To me it is just "watered" down primer. How is it sealing where the primer wouldn't?  Just curious on the details.

Different types of primer or primer/sealer - laquer, polyester, epoxy etc., sealer or primer sealer does what it says - seals off underneath layers. Some decent info here - https://www.rodauthority.com/tech-stories/paint-body/primer-sealer-choices/

[Rich G.]

Very good article. That pretty much sums it all up. I think Earl Schibe might have skipped a few if these steps. Parts and labor $19.95 ahh the good old days!

[JS29]

Earl Shibe!   

[jimynick]

Very good article. That pretty much sums it all up. I think Earl Schibe might have skipped a few if these steps. Parts and labor $19.95 ahh the good old days!

Man, I remember those commercials! "Hi, I'm Earl Schibe and I'll paint your car for $29.99", but then I can remember my old man painting used cars for $65 back in 1971, at a Chevy dealership! 

[JS29]

@jimynick  You remember what a gallon of paint cost in them Thar days? Straight enamel no dough. 

[jimynick]

Not off-hand regarding the paint prices, but I know I was working for $2.00/hr if that helps. Our enamel line was RM and our lacquer line was DuPont. There was no dismantling and it was a tape 'er up and scuff 'er off and shoot it. Dad said he made a little money on the deal, too. In '78 I was working in a Maaco and the top of the line paint job was $169.00  There was no such thing as clear coat in the sense we have it now and you only saw it on custom cars and it was all lacquer based, so you could count on it cracking in a few years. I remember the old guys used to put the pot of paint on a hotplate and heat it up! They swore, and to be fair to them it did, make the paint go on smoother and shinier, but it'd run in the blink of an eye and only the real old fashioned painters could get away with it. Tempus fugit! 

[JS29]

Ya clear coat in any thing but lacquer Did not exist until the mid later 80's.