VicS
Well-Known Member
I'll ignore all the unfounded nonsense and stick with Cascamite as it is still the best after some 60 years on the market.
Cascamite ( now sold as Extramite I believe) is urea-formaldehyde glue. Reasonably water proof but not good enough for anything permanently wet such as for underwater use
Aerolite 306 is also a urea-formaldehyde glue but the hardener is separate
Because the hardener is already mixed with Cascamite its storage life tends to be limited
A resorcinol-formaldehyde glue, such as Cascophen and Aerodux, is superior to the urea-formaldehyde glues and suitable when a really water proof glue is required.
Resorcinol glues were used in construction of the WWII de Havilland Mosquito fighter bombers, replacing the urea formaldhyde glues initially used
A possible disadvantage of resorcinol glues is their dark colour