As the title suggests:
Any advise.
I am nearing completion of 2 PU blanks. I wish to paint both these with a spray gun and air compressor. I have set up and bought everything and am ready to go (yes, a good acrylic paint).
There are some imperfections and a few divots in the two blanks. I don’t want to try and further sand these out as the blanks look good, and the minor imperfections are quite numerous.
Can someone recommend a good way to do a sealant on a PU blank before I spray gun the blank and then epoxy laminate it.
May be you can try with acrylic lightweight spackle diluated to cream texture. This is a common way to seal eps blanks before paint, i think it can work well on pu too. It easy to spread thin then to sand fine, add near no weight, perfect for acrylic paint.
Just dab a little lightweight spackle on pin holes using your finger. Try to keep it to a minimum. Only in the hole if possible. Don’t spread it to the adjacent cell anymore than necessary. If you just smear it around it will make the repair even more noticeable even under a primer. Spray a white latex all purpose primer over the entire board.