Painting Aluminum Siding: 3 Mistakes to Avoid Painting Aluminum Siding: 3 Mistakes to Avoid
Painting aluminum siding is a great project for even a beginning do-it-yourselfer. The process is much like painting anything else, but the results can provide satisfaction everyday for many months to come. Be sure to avoid a few common mistakes for the best results.
1 - Dry Time
Do not think you can clean the siding with a phosphate detergent, wait an hour or so and start painting. You should wait at least 2 to 3 days to allow the siding, the trim, the awnings, the soffets, and anything else to thoroughly dry.
2 - Summer is Best
Though the summer is often the driest time of year, direct sunlight and heat are not the best thing for painted siding. Instead, pick a day which is dry, but overcast for the best results. Direct heat will often have a negative effect. Check the paint label for best temperatures to paint.
3 - All Primers are Equal
Two coats of primer are needed to paint most any siding, but check both the paint and the siding. If the aluminum siding is oxidized, you will need to use alkyd-based primer. Latex primer has ammonia in it and the reaction to the oxidized siding will permanently damage it. Thin the alkali-based paint to 1 part thinner, 4 parts primer.