What is the building decoration glue standard?
Hello, the general standard of building decoration glue is:
(1) Class I (NQF) - weather resistant, boiling water resistant plywood. These plywoods are durable, resistant to boiling or steam and antibacterial and can be used outdoors. This type of plywood is made by phenolic resin glue or other similarly cemented glue.
(2) Class II (NS) - water resistant plywood. This type of plywood can be impregnated in cold water. It can withstand short-term hot water impregnation and has antibacterial properties, but is not resistant to boiling. Such plywood is made by gummy aldehyde resin glue or other adhesives of comparable properties.
(3) Class III (NC) - moisture resistant plywood. This kind of plywood can withstand short-term cold water impregnation and is suitable for indoor normal use. Such plywood is made by bonding a low resin content of urethane aldehyde resin, blood glue or other similarly versatile glue.
(4) IV (BNC) - not resistant to plywood. This type of plywood is used in the normal state of the room and has a certain bonding strength. Such plywood is made by glued with bean gum or other similar properties.