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Lucas Water-Based Aluminum Coating #621 - Full Range
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Product Code: L-621-5
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Lucas #621 is a reflective aluminum roof coating in a water-based asphalt emulsion vehicle. #621 is fast curing, low odor and very low VOC.
Lucas #621 is manufactured from refined asphalt, stabilized aluminum pigment, colloid clay and water.
Mechanically mix before using. Do not store above 90ºF or below 40 ºF. Apply only at temperatures above 40ºF and rising with less than 90% humidity. Surface temperatures should be under 100ºF to avoid premature curing. If roof surface is hot, apply a light water spray to reduce its temperature.
Apply evenly with a soft bristle brush or suitable spray equipment at the rate two gallons per 100 square feet. For best results, brush coating in one direction with the slope of the roof. Do not apply over fresh roof repairs or coating. Roofing asphalts, both hot and cold applied, contain oily constituents which may bleed through and stain the finished coating. As this condition is unpredictable, we recommend that the user apply a small amount of #621 to the area of the roof to be coated in order to test its performance. Use #621 as it comes from the container, no thinning is necessary with this product.