Filed Under (Fancy Plywood, Plywood, Quality & Markets) by Mason Pan on March-28-2015

hardwood plywoodTypes of Plywood According to JPIC/JAS Standards

JPIC/JAS Standards divided plywood into 5 types as follows:

1. Plywood for General Use (Common plywood)

Bonding Quality: Type I or Type II ,

Used in dry conditions or occasional moist conditions;

The glue is usually moisture resistant glue such as urea formaldehyde resin, melamine-modified urea formaldehyde resin (MUF) or better glues;
Can not be used for structural purpose;

Face/back are common hardwood or common softwood species.

Applications: decoration, furniture, packing, and non-load-bearing applications in building, roofing, wall sheathing.

2. Concrete Forming Plywood (Shuttering Plywood)

For shuttering purpose, used as concrete formwork panel;

Type I Bonding Quality, melamine-modified urea formaldehyde resin (MUF) or better glues like phenol glue;

Face/back are meranti, lauan, pine…; face/back may be treated with water-resistant resin or coated with film;

Formaldehyde Emission is not required to meet F☆☆☆☆, because shuttering plywood is not used indoor;

Applications: shuttering concrete form, formwork panel.

3. Structural Plywood

Bonding Quality: Type Special, Type I ;

Used in constantly wet conditions or occasional moist conditions, usually phenolic glue or  melamine-modified urea formaldehyde resin (MUF) are used;

In order to guarantee the supper inherent strength and bonding quality, JAS has stricter requirements in the grade of core veneers and the quality of core-joint in the production of structural plywood;

Applications: load-bearing structural purposes, load-bearing sheathing and roofing, architectural components in building & construction;

4. Decorative Plywood with Natural Wood Veneers

Bonding Quality: Type I or Type II

Used in dry conditions or occasional moist conditions;

Glue: urea formaldehyde resin, melamine-modified urea formaldehyde resin (MUF) or better glues;

Face veneers are expensive, high grade natural veneers with beautiful wood grains, no defects are allowed in the face veneers except very slight defects;

The allowed thickness tolerances are smaller than the above mentioned 3 types of plywood;
Applications: furniture, decoration .

5. Specially Processed Decorative Plywood

Bonding Quality: Type I or Type II

Used in dry conditions or occasional moist conditions;

Glue: urea formaldehyde resin, melamine-modified urea formaldehyde resin (MUF) or better glues;

Face veneers are treated with printing, painting, resin (UV..) or coated with overlay film (melamine paper, PVC, MDO, HPL…) , no defects are allowed in the faces of plywood except very slight defects;

The allowed thickness tolerances are as strict as Decorative Plywood with Natural Wood Veneers;
Applications: furniture, decoration .

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(2) Comments    What next?

Comments:
Ronney shed on January 25th, 2016 at 10:03 pm #

I need to replace my kitchen floor, currently has 14 year of builder’s grade vinyl. It has to go. I’d like a tile/stone floor but not in the budget and I’d never make the money back in this neighborhood. I’ve looked at the various plywood planks and squares and I’m inspired.
I would like to do plywood squares for the kitchen and stain the squares different colors for a multicolor stain look with no particular pattern. I have a table saw, drill, etc and moderate know how. My questions: do I need a gap between each square? if so how much? is a dime a good choice to guarantee gaps? Also, one DIY video mentioned routing each square 1/8 inch down and 1/8 inch of the edge of each square? Why? and last, should these squares be glued to the subfloor and should I use screws or nails. I’m much more accurate with the screws even if I need to predrill. And if the squares are routed should I use that 1/8 recess for the screws or nails? Thanks a bunch!

Mason Pan on May 12th, 2016 at 8:06 am #

I’m sorry I know how to produce plywood , but I don’t know the DIY skills.

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