Learn which sealer or primer works best on your interior or exterior projects. advertisement. Better Homes and Gardens. Primer Paint and Paint Sealer Smooth the Way for a Top Paint Job.

Bare wood. Primers fill the pores in wood and form a good adhesion base for topcoats. ... When priming cedar or redwood, use an alkyd primer or a stain-blocking acrylic latex primer.

Sherwin-Williams has introduced its new indoor/outdoor formula, Extreme Block Primer/Sealer. ... fire and nicotine, while also blocking tannin bleed from bare wood.