The authoritative public forum
  for Metal Finishing since 1989
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Looking for low gloss field applied exterior polyurethane

We are looking for a low sheen 2 component polyurethane for painting aged exterior factory coated extruded aluminum window frames on site. The frames currently have a baked on finish that is fading and very chalked. The acrylic aliphatic polyurethanes we have tested have a high gloss which is not aesthetically acceptable. We require a coating that will perform for at least 10 years.

Thanks

Andrew Fitzpatrick
- Toronto Ontario Canada
1998

Andrew, you may consider using a catalyzed acrylic poly-urethane for this purpose. Most acrylics have a semigloss finish and a high UV resistance when properly applied/ Please contact me for further info or recommendation.

Pete Bagley
- Reno, Nevada
1998

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I am interested in trying a catalyzed acrylic poly- urethane. Can you recommend a supplier. Thank you.

Peter Mayo
1999