Arroyo® Stain-Blocking WB White Primer is a GREENGUARD certified, fast drying, easy sanding water borne white primer made with a very unique all acrylic polymer that has built in functionality to help prevent tannin / stain migration. Special polymers lock in water-soluble tannins to help prevent them from bleed-through while also creating an ideal smooth basecoat for waterborne or solvent borne pigmented topcoats.

This  primer / undercoater is ideal for use on unfinished MDF and softwoods such as pine and cedar, as well as hard woods such as oak, poplar, birch and maple.