Can you paint window sills with masonry paint?

For external window sills you will need some type of masonry paint. If the window sills are new, you will also need an external primer first and then the masonry paint.

Do you need to undercoat concrete window sills?

For interior wooden window sills you only need to prime if you have bare wood sills. You will need a decent wood primer/undercoat for the job. The same principles apply for exterior concrete/masonry sills that have yet to be painted. For this you will need a decent exterior masonry primer/undercoat.

What kind of paint do you use to paint window sills?

Regular wall paint seldom works well on window sills. It doesn’t have enough body to protect the wood and, because sills present a horizontal surface, it’s a magnet for dirt. You need a gloss or semi-gloss acrylic or latex enamel that levels out to form a smooth surface and is easy to clean.

Do I need to sand window sills before painting?

Quote from the video:
Quote from Youtube video: As this coating is enamel paint it needs a heavy sand with 120 grade sandpaper to remove all boss from the surface.

How do you fix peeling paint on a window sill?


  1. Scrape Away the Loose Edges. With a paint scraper or 5-in-1 tool, scrape away loose edges of the painted area. …
  2. Remove the Loose Paint by Brushing. …
  3. Apply the Wood Filler. …
  4. Allow the Wood Filler to Dry. …
  5. Sand Down the Wood Filler. …
  6. Check for Smoothness. …
  7. Apply the Primer.

Should window sills be painted white?

Color Or No Color

If you want your window sills to blend in with your new decor, a fresh coat of white or whatever your trim color is may be the perfect finish. I recommend this approach if your existing window sills aren’t the most architecturally ornate or special in any way.

How do you paint a stone window sill?

Quote from the video:
Quote from Youtube video: For the best results apply three thin coats of window sill stone coating. After the final coat the paint will be completely shower proof within one hour and weather proof once fully cured.

How do you clean exterior stone window sills?

Dilute one part bleach with five parts cool water. Wipe down the limestone with the bleach solution to remove any mildew stains. The bleach also lightens and removes other organic stains. Scrub any grout with the bleach solution and an old soft-bristle toothbrush to remove stains and soil.

How do you repair a masonry window sill?

Quote from the video:
Quote from Youtube video: Make sure you squeeze it right down into the crack. Get as much on as. Possible. All the way around.

Can you paint masonry paint over gloss?

No, as long as they have weathered just apply the Gloss directly onto the surface. Make sure that the surfaces are clean and dry before painting.

Can you paint over old masonry paint?

Remove any flaked or peeling paint from the masonry. If the wall has already been painted, you need to remove any old paint that is loose, peeling, or flaking away. On an exterior wall, this is most efficiently done with a sandblaster.

What happens if you paint over gloss without sanding?

If you attempt to paint over glossy paint without sanding then you will most likely have a peeling issue in the future. Since the paint will not have anything to grab onto it will chip and peel easily. To avoid sanding you can, however, use a liquid deglosser such as Krudd Kutter or M1.