Painting windows requires special preparation and techniques because of their glass and open-and-close operation. To protect the glass, you can use masking tape or a wipe-on protective film that&#8… ...

Most often this shows up as a powdery residue, not flaking. Sanding with 120-grit sandpaper would work if the frames were smooth, but many aluminum window frames are textured, often with fine grooves.

Home Improvement How to Paint Aluminum Siding By Realtor.com Published June 6, 2016 2:42pm EDT | Updated February 1, 2017 11:25am EST painting aluminum siding ...

Follow standard painting procedures concerning the weather. Overly windy days can cause the paint to dry too fast, as can the hot sun. Paint the portions of the gutters that are in the shade.