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Originally Posted by #^^^^^^^^^^^&
BTW, just so you know and I'm stupid to be publicly posting something that I paid someone to research, but all of the spray primers on the market today are engineered for fast dry and as such use fast evaporating solvents. Acetone, ketone, etc etc. Problem is that there are only two classes of oil primers...fast and slow...and if you try and use the fast dry stuff then you're in effect drying the primer before it has a chance to react with the surface oils and make a proper bond... Slow dry base gives the chemicals time to allow the pigment to react with the oil and become PART of the surface oils and allow the pigment etc to actually bond to the surface.
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Correct on all counts there Scott

I know you know that but I concure...