Positive drainage is needed to flush away surface dirt and retain the reflective properties of the aluminum coating. If an aluminum coating is under water for a prolonged period of time, the water may work its way under the coating causing it to peel. Dirt can accumulate in depressions and inhibit the reflectance of the coating. What effect does ponded water have on aluminum roof coatings?Īluminum coatings do not perform well on roofs that pond water. New asphalt built-up roof (BUR) surfaces should weather a minimum of 90 to 180 days prior to coating with Black Jack aluminum roof coatings. How soon can I coat a newly installed built-up roof with an aluminum roof coating? How do I clean up a spilled Black Jack product?Ĭonsult SDS data sheets for the specific products. An emulsion coating will provide a firm base on which to apply the aluminum coating 5 to 10 days after the emulsion has cured. If an aluminum surface roof coating must be applied sooner to a new built-up roof, a water based emulsion coating should be used instead of a solvent-based asphalt coating.

Check with the manufacturer if you are not sure.Ĭan new built-up roofs be coated with aluminum coatings sooner than the recommended 90 to 180 days weathering period?

Some rubber roofing materials require special cements and coatings manufactured for use on these materials alone.

Black Jack 6230 Wet/Dry Plastic Roof Cement.

Black Jack #99 Neoprene SuperFlash Flashing Cement.

The products designed for wet weather application include: Thinning a product designed as ready-to-use can impact performance, and thinning certain products may violate government Volatile Organic Compound (VOC) regulations.Ĭan I apply Black Jack coatings or cements if it will rain soon? Can Black Jack products be thinned and if so, with what type of thinner?īlack Jack products should not be thinned unless labels expressly direct so.

Black jack rubr coat 57 dry time