What are the best Glue Types for working with Luan Plywood?
Here are a few examples and their characteristics that you might find useful for any do-it-yourself project that you currently have on the go:
How to Bend Plywood
Carpenters Glue: Wood glue is an adhesive used to tightly bond pieces of wood together. Many substances have been used as glues
Epoxy 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
Gorilla Glue : When exposed to moisture the adhesive reacts and creates a foaming action that fills voids as it cures. Gorilla Glue has an open working time of 20 minutes. The glue is brown in color, but dries a tan color. Titebond III : TB III is waterproof - not water resistent
TiteBond III passes the "Type 1" WBP test, meaning they can advertise it as waterproof. This said, it just barely passes this test and is dramatically weakened when immersed. Even the TiteBond folks don't recommend it for structural or immersed applications, partly because of the above, but mostly because of "creep" which is common with all the PVA adhesives.
ReplyDeleteInterestingly enough, marine grade epoxy formulations don't pass the type 1 WBP test, so the US Navy (and other) suggest it's not waterproof, but unless you plan of parking your boat or bathroom subfloor over submerged, active volcanoes, it's about the best, most waterproof adhesive known for wood (bar none).
This subject is quite extensive and fairly complex. It deserves some attention, particularly in light of the recent decent of plywood quality in the last decade. So Bradly, maybe some research and continued contributions here is in order.