This story shows you how to properly paint a window.
Many people think of painting as something anyone can do. But don't take the job lightly -- painting mistakes can cause plenty of window problems. Take the time to learn how to do the job right.
Preparation is vital. New windows should be sanded and primed. If the surface of an old window is rough because of paint buildup or other causes, new paint will not correct the situation. Scrape and sand as needed until the surface looks and feels smooth.
A coat of paint may hinder the window from closing easily. Before painting, scrape or sand until the window works well, then sand some more to allow for the new paint's thickness.
To make sure the new paint will stick, sand all surfaces first. (A coat of primer will also ensure stickability, but the extra paint thickness can pose problems on an old window.) Whenever you apply paint you will create a slight ridge. To ensure a smooth surface, aim to always maintain a wet edge.
About 2 hours to lightly sand and paint a medium-size window; more time if extensive sanding is needed
High-quality paintbrush (a 2- or 2 1/2-inch tapered brush is useful), solid and foam sanding blocks, paint scrapers, straight razor blades, razor-blade scraper, putty knife
Painting is a skill that you can learn in a couple of hours if you work carefully.
Protect the floor with drop cloths. For high windows use a stable ladder.
Sandpaper, wood filler, paint, primer