What is WBP Glue?

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In plywood business , a lot of people sell/buy WBP plywood/film faced plywood . But do you know whats the meaning of WBP?

WBP stands for "Water Boiled Proof" . If you use WBP glue for the plywood/film faced plywood, the panel can be exposed to weather, water and moisture for a long period without delamination.

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So how to test WBP plywood? You can put the plywood samples into the boiling water . If the samples have not delaminated in boiling water for a long period, then we can say the samples are WBP plywood samples .

The common WBP glues are melamine glue and phenolic glue.Generally speaking, WBP(ordinary melamine) plywood can be in boiling water for 4-8 hours;

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WBP(better melamine) plywood can be in boiling water for over 10 hours or even 20 hours; 

WBP (phenolic) plywood can be in boiling water for 24-72 hours;

The best WBP(phenolic) glue can be regarded as permanent adhesives.

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But the water boiled proof period of plywood is depended on not only the quality of WBP glue, but also the craftsmanship of production .

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Usually , people like use WBP glue for exterior plywood , such as Marine plywood, film faced plywood, structural plywood and so on . And it also used for interior plywood , such as furniture plywood, cabinet plywood and so on. 


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