Filed Under (Knowledge) by Mason Pan on September-25-2007

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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(6) Comments    What next?

jan****** on September 26th, 2007 at 8:42 pm #


Ern****** on March 3rd, 2009 at 1:34 pm #

Is this type of glue lead and phthalate free per cpsca specs

Mason Pan on March 3rd, 2009 at 6:07 pm #

What do you mean ?

Pe****** on April 8th, 2010 at 5:39 pm #

I totally support that! Continue that way!

Mar****** on October 29th, 2010 at 6:51 pm #

What different between MR & E1 glue use in plywood or MDF?

Mason Pan on August 12th, 2011 at 8:11 pm #

Please refer to this article : The Limit of Formaldehyde Emission

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