How To Paint Aluminum Sheet Metal

Both steel and aluminum sheet metal can be painted to your customer s specifications.

How to paint aluminum sheet metal. You could use a self etching primer affil. Wash the entire sheet aluminum surface using a. Allow the surface to dry and cure for four full. Remove old paint with a paint stripper.

Aluminium s smooth surface has to be abraded to allow the paint to have somewhere to get in and hold on to. Spray the metal with compressed air. You can choose to roll on spray on or brush on a professional aluminum primer. The vinegar s acidity will further abrade.

Apply a cold water and phosphoric acid mixture to prepare the aluminum surfaces to accept and cling to paint. Painted sheet metal gives any roofing project a highly customized look without sacrificing durability and performance. With most materials this can be done with sandpaper but with aluminium you are best off using an etching primer and leaving it for 4 6 hours before painting. Panels should then be left to air dry.

Scrape rust away with warm. Clean bare aluminum with warm water and a degreasing agent. This will remove any dust and dirt from the surface of the sheet metal. For your application a class 1a film would work.

Fill a tub or bucket with warm water then add a few. Scrub any greasy or oily areas using a degreaser and a brush. They all work better than smearing paint on the slick surface of aluminum. Apply a coat of etching primer using a four inch paintbrush.

Apply a conversion coating to finish the acid etching process. How to paint sheet aluminum step 1. Or you could send it to a processing house and have a chemical conversion coating applied. To prep metal for paint adhesion you must first clean it with soap and water remove light rust with a wire brush sand it with fine grain sandpaper and then in most cases prime.

Wash the brush using. Link to product info on amazon and white topcoat. Painted sheet metal features benefits. Preparing the project 1.

Spray the sheet metal with white vinegar and wipe it down with a clean rag. After cleaning the panels they should be rinsed completely with clean water.