Primers

The right primer makes paint bond, blocks stains, and lasts. This section covers primer basics, choosing between brands, and prepping wood before priming.

Primer basics: primer vs paint, when to use oil-based primer, and mixing primer.

Choosing a primer: Zinsser vs Kilz, Kilz vs Zinsser compared, and primer over epoxy repairs.

Prep & sanding: grit for primer, sanding between coats, and removing primer.

For the complete finishing workflow, see our wood finishing guide.

What’s the difference between primer and paint? Primer seals and creates a bondable base; paint provides color and protection — priming first makes topcoats adhere and cover better.

When should you use oil-based primer? For blocking stains, knots, and tannin bleed, and over glossy or previously oil-painted surfaces.