PVA primer is a latex-base product that seals the pores of the drywall. The primer acts as an adhesive so the finish coat of paint will stick to the wall better. Even though the PVA primer hardens, it is still soft, which allows the finish color to stand out more and go on smoother.

Is primer and PVA the same?

PVA is an acronym that stands for Poly Vinyl Acetate. ... It's precisely this poly vinyl acetate that separates PVA primer from paint. It will adhere much better to porous surfaces that would simply absorb regular paint.

Can PVA be used as a primer?

PVA ADHESIVE & SEALER can be used with plaster, cement, timber, gypsum wall boards and paper. ... It is also a readily dilutable primer for sealing applications or addition to cement and plaster to improve adhesion and cure.