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February 25 - March 1, 2019

What kind of surface preparation prior to coating will be effective and at the same time economical for the aluminum window frames on a large commercial office building? The aluminum was coated originally with a baked-on fluoropolymer which has lost most of its gloss. Maintenance recoating will be with an air-dry fluoropolymer.

Selected Answers

From trevor neale of TF Warren Group on March 6, 2019:
Unless there is some documented history to answer this important question,  this is a great example of where candidate products and systems should be tested at the site on the existing surface before the RFQ is issued.

From Peter Gillies of A & I Coatings on February 26, 2019:
Good choice of topcoat for recoating, We would recommend cleaning, abrading lightly for mechanical bond, application of a CPO-based primer for chemical adhesion to the pvdf, then application of an air-dry fluoropolymer.

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Tagged categories: Asia Pacific; EMEA (Europe, Middle East and Africa); Fluoropolymer; Latin America; North America; Surface Preparation

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