Description of defects in laminated plywood

Name of processing defects

Standards for limiting processing defects for W/F grade plywood with mesh coating

W F
1 1 2 3
Absence of film coating, peeling, flake

Not allowed

Not allowed

Allowed size no more than 30x30 mm (subject to coating with moisture-proof paint)

Allowed up to 20% on one side

Film rupture

Not allowed

Not allowed

Allowed width no more than 10mm on one side of the sheet (subject to coating with moisture-proof paint)

Allowed

Lack of film

Not allowed

Allowed no more than 5 mm on one edge of the sheet(subject to coating with moisture-proof paint)

Allowed width  no more than 10mm on one edge of the sheet (subject to coating with moisture-proof paint)

Allowed

Imprinting of wood structure on the surface of the film coating

Allowed

Allowed

Allowed

Allowed

Film overlays, wrinkles

Allowed with a width of no more than 5 mm, a total length of no more than 500 mm (without peeling off the film)

Allowed with a width of no more than 5 mm, a total length of no more than 500 mm (without peeling off the film)

Allowed with a width of no more than 5 mm, a total length of no more than 500 mm (without peeling off the film)

Allowed

Whitish traces from defects and blemishes in the wood of the inner layers – fallen knots

Not allowed

Allowed in the form of spots measuring 30x30 mm without quantity limitation)

Allowed

Allowed

Whitish traces from defects and blemishes in the wood of the inner layers – open cracks

Not allowed

Allowed in dimensions no more than 5x300 mm of no more than 1 piece per 1 meter of sheet length or width

Allowed

Allowed

Temperature stains - whitish spots and stripes

Not allowed

Not allowed

Allowed without damaging the film coating

Allowed

Presence of film fragments on the surface

Not allowed

Allowed size no more than 30x30 mm or 10x100 mm of  no more than 1 piece per m2

Allowed

Allowed

Sticking of film fragments on the surface

Allowed sizes no more than 30x30 mm or 10x100 mm in an amount of no more than 1 pc./m2

Allowed sizes no more than 30x30 mm or 10x100 mm in an amount of no more than 1 pc./m2

Allowed

Allowed

Burnout because of fallen knots, or  cracks in the outer layer

Not allowed

It is allowed without Allowed without breaking the integrity of the facing coating of 5x5 mm in quantities of no more than 5 pieces per sheet

Allowed size of no more than 10x15 mm in the amount of 3 pieces per sheet

Allowed

Mark from the internal overlaps of the scarf joint or the joints of the edge-glued layer

Allowed (without signs of destruction of the coating)

Allowed (without signs of destruction of the coating)

Allowed

Allowed

Scratches and risks

Not allowed

Allowed (without signs of destruction of the coating)

Allowed

Allowed

Imprints from press plates and garbage

Not allowed

Allowed in the form of separate stripes and spots

Allowed

Allowed

Local film swelling

Not allowed

Allowed without signs of destruction of the coating with a diameter of no more than 50mm in the amount of 2 pieces per sheet

Allowed without signs of destruction of the coating with a diameter of no more than 100mm in the amount of 2 pieces per sheet

Allowed

Pressed  veneer pieces

Not allowed

Allowed  size no more than 2x30 mm

Allowed

Allowed

Dents

Allowed with a diameter of no more than 6 mm in the amount of 1 piece per m2 (without peeling off the film)

Allowed with a diameter of no more than 6 mm in the amount of 1 piece per m2 (without peeling off the film)

Allowed depth of no more than 0.5 mm (without damaging the coating)

Allowed

Lack of veneer in the inner layers

Allowed from the 3rd layer with the  depth of no more than 3 mm, length not more than 10 mm

Allowed from the 3rd layer with the  depth of no more than 3 mm, length not more than 10 mm

Allowed from the 3rd layer with the  depth of no more than 3 mm, length not more than 10 mm

Allowed

Crook

In plywood with a thickness of up to 6.5 mm inclusive - it is not taken into account; in plywood with a thickness above 6.5 mm, a deflection of no more than 15 mm per 1 m of the diagonal length of the plywood sheet is allowed.

In plywood with a thickness of up to 6.5 mm inclusive - it is not taken into account; in plywood with a thickness above 6.5 mm, a deflection of no more than 15 mm per 1 m of the diagonal length of the plywood sheet is allowed.

In plywood with a thickness of up to 6.5 mm inclusive - it is not taken into account; in plywood with a thickness above 6.5 mm, a deflection of no more than 15 mm per 1 m of the diagonal length of the plywood sheet is allowed.

In plywood with a thickness of up to 6.5 mm inclusive - it is not taken into account; in plywood with a thickness above 6.5 mm, a deflection of no more than 15 mm per 1 m of the diagonal length of the plywood sheet is allowed.

Paint smudges on the surface of the sheet

Allowed width no more than 5 mm

Allowed width no more than 10 mm

Allowed

Allowed

Cutting defects, chips during sawing, film flakes, mechanical damage

Not allowed

Allowed are chips with a length of no more than 5 mm and a width of no more than 1 mm, provided they are covered with paint.

Allowed are chips with a length of no more than 10 mm and a width of no more than 5 mm, provided they are covered with paint.

Allowed

ПNotes 1. Processing defects not listed in this table are not allowed.