Paint Quality Institute

   Search:
Prep, Prime and Paint
Bookmark and Share

Metal

Previously Painted/Flaking or Peeling/To Be Painted

  1. Surface Preparation:
    • treat any mildew with a 3:1 water:household bleach mixture, leaving it on for 20 minutes and adding more as it dries; wear eye and skin protection; rinse thoroughly
    • remove loose or peeling paint by scraping or wire brushing; wear eye protection, dust mask and work gloves
    • if any rust is evident, remove as much as possible by wire brushing; wear eye protection, dust mask and work gloves
    • remove dirt, chalk, treated mildew, loosened paint and rust, etc. by scrubbing with detergent and water, and rinse thoroughly; or power wash with plain water

  2. Priming:
    • use oil-based primer if old coating is built-up of oil-based paint
    • use two coats of primer for maximum corrosion resistance
    • for copper, brass or other copper-containing alloys, use only a primer recommended for these materials, or discoloration of the finish coat may occur
  1. Painting:
    • use top-of-the-line exterior 100% acrylic latex house paint in flat, satin, semi-gloss or gloss finish (depending on appearance desired) that is recommended for primed or painted metal of the type you are doing
    • use an oil-based paint if old coating is built-up of oil-based paint
    • direct-to-metal (DTM) gloss latex products may be used for ferrous metals, following manufacturer’s directions closely, with or without primer; but best results will be obtained using a metal primer

Back to Exterior Prep, Prime and Paint

 

 

Terms and Conditions | Site Map | Privacy Statement | ©Copyright 2013 Rohm and Haas Company is a wholly owned subsidiary of The Dow Chemical Company.