construction plywood common problems and solutions

2018-05-04 22:25:10 construction plywood 1920

Construction plywood adhesive plaster not fastness, large area degumming

Causes: 

1. Bad quality of glue (e.g., mildew, etc.);

2. High moisture.

Solution: 

1. Tear off the construction plywood veneer, scrape off the glue, and re-glue;  

2.The water content of the construction plywood veneer should be controlled between 12%-14%.

Construction plywood surface is uneven

Causes: 

1. The basic veneer itself is not smooth;

2. The thickness of the adhesive layer is uneven, and the extra glue is not extruded when hot pressing

Solution;

1. It is difficult to repair., the veneer can be re-planed and the surface of the part is trimmed;

2. Press the excess glue to form a thick and uniform rubber layer.

Construction plywood warping deformation of plate.

Causes: 

1. Improper mixing ratio of adhesive;

2. Improper hot press conditions;

3. The surface of the table is not symmetrical;

4. Large water content and drying shrinkage.

Solution: 

1.moderate levels after hot pressing conditions, hot pressing and piled pressure heavy block;

2.moisture content of veneer is unfavorable and exorbitant.


For more info on construction plywood, please take a look at these page :

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https://en.wikipedia.org/wiki/Plywood

https://plywood-plywood.com

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Jiangsu Senso Building Materials Co.,Ltd. (SENSO) is one of largest manufacturer of plywood and related products in China, which was founded in 1995 with 6 subsidiaries. We are now enjoying 62 production lines of film faced plywood ,commercial plywood and LVL.......

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