Resorcinol glue

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Resorcinol glue, also known as Resorcinol-formaldahyde, is an adhesive combination of resin and hardener that withstands long-term water immersion and has high resistance to UV light.[1][2] The adhesive, introduced in 1943, has been popular in aircraft and boat construction.[2]

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.[citation needed]

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  1. ^ Media, New Track (1993-09 - 1993-10). American Woodworker. New Track Media. p. 30. ISSN 10749152.  Check date values in: |date= (help)
  2. ^ a b FAA (2 April 2014). Aviation Maintenance Technician Handbook-Airframe, Volume 1. Mepcount Media LLC. p. 600. ISBN 978-1-62508-006-6.