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TB312 Rust Filings

The appearance of the rust “specks” on the surface of any coated or uncoated sheet, are usually
reported as premature sheet rusting within one year of installation..

TB301 Field-Cleaning

Most pre-painted metal roofing and siding can be cleaned with a mild detergent solution
such as tri-sodium phosphate, Spic-N-Span…

TB305 Painting-unpaint Alum

From time to time, there are inquiries as to the proper method required for the field
application of paint on unpainted (plain) aluminum roofing and siding. This can be satisfactorily
accomplished by following one of the procedures listed…