What’s MR glue-which is commonly used for plywood / film faced plywood / blockboard

In plywood business, the words of  ” MR glue ” is usually mentioned . A lot of people know that MR glue is cheaper than Melamine or Phenolic glue . But some people don’t know what the meaning of “MR” is . Then what on earth is ” MR glue ” ?

“MR” is the acronym of “Moisture Resistant” . MR glue means the glue is resistant to moisture . So The meaning of “MR” is different from that of “Melamine ” and “phenolic” . “Melamine ” or “phenolic” is the name of a specific glue . But Like the word of “WBP“, ” MR ” is only a kind of property/feature of glue . If a glue has MR property, the glue will can be called MR glue .

Plywood with MR glue is resistant to moisture . MR plywood are usually used for home interior application, such as furniture grade plywood / blockboard and so on .

MR glue can also be used for some exterior shuttering plywood / film faced plywood (formwork plywood) , too . MR plywood can be in cold water for some days without delamination . So MR shuttering plywood or MR film faced plywood can be used for some simple construction projects .

However MR plywood will delaminate in hot-water within short time (no more than 30 minutes) .

What kinds of glue do you usually use for your plywood ?

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