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A great adhesive for crack repair that works on wet or dry surfaces. An epoxy gel that is not sensitive to moisture (may not be applied underwater, however). This is great stuff for patching, gap filling, joining dissimilar materials and overhead work. It doesn't sag, run or drain into cracks. Excellent for use on concrete, wood, fiberglass and steel.
When mixed, this two part epoxy (1 to 1) is a gray-colored heavy paste. For the best adhesion to concrete, the PT20 epoxy sealer should be applied prior to epoxy gel. The pot life is only about 20 minutes, it hardens in six hours, can be painted over after six hours but before 48 hours, and reaches its final cure after 72 hours at room temperature.
If not painting over, wash surface thoroughly with soap and water (after 72 hours) before adding fish. Acceptable for aquatic containment under USDA guidelines. Sold in two gallon kits. Two-year shelf life. Weighs 22 lbs. Made in USA.