B51W620 (2024)

FAQs

How long does it take for ProBlock primer to dry? ›

After priming, allow to dry 4 hours, test a small area for bleeding by applying the topcoat before painting the entire project. If the stain bleeds through, apply a second coat of primer and allow to dry overnight and retest before topcoating.

Sherwin Williams' PrepRite ProBlock Primer is a very versatile primer. Its purpose is to address any problematic areas so that you can then apply a finish coat to the surface. It can be used to address stains, crayon marks, raw/new surfaces, and more.

Most latex primers dry to the touch in 30 minutes to one hour. But for best results, don't paint until the primer completely dries—which can take up to 3 hours, depending on temperature and humidity. Once the primer is completely dry, it's prime time for painting.

Primer is just basically paint so it won't present any problem as to how long you leave it on before painting.

ProBlock^® now has improved maximum stain blocking and sealing performance for resistant odors and stains such as smoke from fire damage, pet odors, water stains, tannins, wood knots and more. Now available in gray, with an easier spray tip!

As of 2020, the longest lasting exterior primer is the Sherwin Williams® slow-dry oil-based primer. The slow-dry action of this primer increases adhesion through extended bonding time. This primer can be either rolled or sprayed and back-rolled. Pros: Highly adhesive.

Polyurethane Primer: This type is perfect for surfaces with stains or imperfections. A polyurethane primer provides a strong grip for paint on concrete surfaces and is very resistant to damage. Epoxy primer: Although it provides a really thin finish, it creates a very strong bond to concrete.

With a water based formulation that's touch dry in just 30 minutes, this high performance primer covers and seals stubborn stains including water stains, nicotine and smoke stains, crayon and pen, preventing them from bleeding through your topcoat of paint.

"Most latex primers dry in 30 minutes to an hour, but for best results, don't paint until the primer completely dries, which can take up to three hours depending on temperature and humidity," Woelfel suggests.

Dries to the touch in 20 minutes and handle in 1 hour. May be recoated within 1 hour or after 48 hours.

How long does it take Sherwin primer to dry? ›

SHERWIN WILLIAMS. Recoat as a primer: 60 - 90 minutes Recoat as a stain sealer: 4 hours of Drying and recoat times are temperature, humidity and film thickness dependent.