Resorcinol glue

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Resorcinol glue is a high wet and dry strength adhesive resistant to elevated temperatures. It is used for wood-to-wood bonding and gluing joints exposed to severe service conditions. Resorcinol withstands temperature extremes from sub zero cold to tropical heat, as well as exposure to either salt or fresh water immersion.[1]

Until the invention of epoxy resin resorcinol was one of the most common marine glues. Unlike epoxy, it does not have gap filling properties, requiring joints to be close fitting and clamped under pressure to achieve good results. The glue came in 2 parts-a red syrup and a light brown powder that were mixed to form glue. Resorcinol has a relatively short shelf life of about 2-3 years depending on storage temperature. Its use has declined since the 1990s due to the ease of use and versatility of epoxy glues and fillers.

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