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Comparing Topps Seal® to 100% Silicone Coatings

February 27, 2018
Most everyone who has used a bathtub caulk has experience using silicones. And everyone who has a car with rubber bumpers and tires knows the virtues of rubber with weathering. Both are excellent – for their own purposes. But which has better properties for roofing? Let’s begin with metal roofing. Both products have nearly identical moisture absorption standards for days on end in ASTM testing with this type roofing which always slopes. They allow almost zero absorption for durations of weather. This means excellent protection against rust and corrosion. Both also provide excellent protection against UV and other elements. However, that’s where their similarities end.....