Questions for the painters...

barbee6043 said

I add reducer to my epoxy primer, as recommended to be my sealer, then it is top coated. BUT that is on OUTSIDE of car I no doubt use a high filler urethane sanding primer before the reduced epoxy sealer, and then topcoat. \
Spot welds, sounds like smoothing it with a 80 grit flap disc, Then sand the area smooth enough with maybe 180? Then epoxy and shoot. It is the underside and truck floor right!????

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Yes, the underside.
Do you use DPLF? Obviously it must lay pretty smooth if you are topcoating over it.

The spot welds are more low than high so I wouldn't be able to grind them further. They are pretty good but with a little work they would not be visible at all.

Mainly, I am just trying to get around sanding the epoxy because it's a pain to sand. I think I will just spray the epoxy and then some Slick Sand on the areas that need to be filled. Then, when the epoxy is fully cured and hard, I will do the sanding. I have always tried to achieve a chemical bond by doing everything within the recoat windows, but recently, I have talked to a few veteran painters that think the mechanical bond is better so I am trying to be a little more receptive to sanding cured substrate and spraying color. (either way is fine according to the P-sheet)
:thumbsup: