How To Clean Window Sills Before Painting. For heavier smudges, apply a little bit of pressure with your fingertips. Make sure that the paint is fully dried before you lower the window.
Give the caulking 24 hours to dry before moving on. Hold the scraper so the blade is at a low angle, almost parallel to the windowsill. Pin this post here so you have it when you need it!
Hold the scraper so the blade is at a low angle, almost parallel to the windowsill.
If your windows and sills are painted white, a diluted bleach solution can also be used to remove stubborn stains or mould patches. To properly clean wooden windows frames: If you see signs of mold or are unsure, best to give them a clean with a fungicidal wash, such as dulux fungicidal wash before painting. Pin this post here so you have it when you need it!