Sealing Bathroom Walls Before Painting

Particularly important on new sheetrock.

Sealing bathroom walls before painting.

Let the filler to dry then smooth down with a fine sandpaper. If your walls are newly plastered here s what you need to know before painting over them. 6 apply the primer and sealer with a paint roller in a v shaped pattern. If the painted surface of the wall is flaking simply scrape the flaking paint from the wall.

Without primer the wall will tend to absorb coat after coat of paint. Previously painted walls do not usually require a primer but kitchen and bathroom surfaces have been exposed to high humidity which may cause the next coating to cover unevenly. Clean the gaps with sugar soap before you fill as any dust could stop the filler sticking to the wall. Your clear sealer urethane sealer for ceramic or porcelain or masonry sealer for natural.

Primer is less expensive than paint and seals the wall. If the plaster is showing after scraping flaking paint simply coat with a 1 part pva and 5 part water mix to bare plaster then face fill with quality filler toupret interior. You first need to seal new plaster to make it less absorbent and to help the topcoat adhere. Definitely use a primer before painting new sheetrock and if you don t use a paint and primer in one.

Do prepare your work area before caulking the bathroom. Unless the surface is chalky this will help bind the surface. Painter s tape allows you to section off the areas that you want to caulk while keeping your tiles tub and shower clean so that your. Take your flexible filling knife and push filler into the gap until smooth with the wall.