Paint Definitions
   Failing Paint on Windows
   Rusty Nails Bleeding
   Wood Knots Bleeding
   Dull Finish On Siding
   Mildew
   Garage Doors and Frames
   Breakdown with Many Coats
   Intercoat Peeling
   Peeling on Galvanized Metal
   Paint Blisters
   Iron Fences / Metal Doors
   Clear Urethanes Varnishes
   Staining
 
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Student Works Painting
in your city and town covering; Ontario, Quebec, New Brunswick, Nova Scotia, Prince Edward Island

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Home  >>>  About Us >>  Painting Problems  > Peeling on Galvanized Metal
Peeling on Galvanized Metal

Paint that has been applied to a galvanized metal surface will peel for one of three reasons:
  • either the galvanized metal was not properly primed,
  • its grease film was not washed after it was manufactured, or
  • as in the case of metal eavestroughs, the metal over-expanded in winter months as water in them froze
 
Once bare, it is critical that exposed galvanized metal be painted, as the sun's ultra-violet rays will degenerate the galvanization, and the metal will actually rust.

The Solution:
In order to avoid the need to replace rusted eavestroughs and downspouts, we will scrape and wirebrush all loose and flaking paint. Rough edges will be sanded, generally with steel wool. The entire surface will then be washed, and, once dry, all bare areas will be primed. We will prime with a primer that is formulated specifically for galvanized metal. .
 
Once complete, this process will last very well, but we are unable to guarantee it as we have no control over the harsh effects of snow and ice. (Metal reacts differently in the winter than most other painted surfaces) We suggest that, with annual clearing of eavestroughs, these galvanized metal surfaces will last as long as the rest of your paint job, and replacement can be avoided.