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Polyurothane Adhesives

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  Polyurethane glue when exposed to moisture the reacts and creates a foaming action that fills while it sticks. Most polyurethane glues have an open working time of 20 minutes. The glue is brown ...

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in color, but when dry it dries a tan colour.This is designed to bond fundamentally flat, smooth surfaces. As the glue expands while setting, it will fill minor gaps, however, such a bond is weak as the expanded glue contains entrapped air bubbles.

   Moisture in the air or the materials being bonded is usually sufficient to cause Polyurethane Glue to cure. Both the Gorilla Group and Franklin Group (Titebond) and some of its competitors claim their cured adhesive is completely waterproof, other brands maintain only water-resistance.