Main Catalogue of the products Laminated plywood Laminated plywood F/F Description of defects in laminated plywood

Description of defects in laminated plywood

Name of processing defects	Grade 1	Grade 2	Grade 3
Lack of film coating, peeling, flake	Not allowed	Allowed size no more than 30mm x 30mm (on condition it is coated with moisture-proof paint)	Up to 20% allowed on one side
Film rupture	Not allowed	Allowed with a width of no more than 10mm on one side of the sheet (on condition that it is coated with moisture-proof paint)	Allowed
Film shortage	No more than 5 mm is allowed along one edge of the sheet (on condition that it is coated with moisture-proof paint)	Allowed with a width of no more than 10 mm along 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
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
Whitish traces of defects and defects of the wood of the inner layers – holes from fallen knots	Allowed in the form of spots measuring no more than 25x25 mm in the amount of no more than 4 pieces per sheet.	Allowed in the form of spots measuring no more than 30x30mm (without quantity limitation)	Allowed
Whitish traces from defects and blemishes in the wood of the inner layers – open cracks	Allowed in the form of strips of film measuring no more than 5x300 mm in the amount of 1 piece per 1 m of length or width of the sheet.	Allowed
Temperature stains	Not allowed	Not allowed	Allowed
Whitish spots and stripes, also from press plates	No more than 25% of the sheet surface is allowed.	Allowed
Adhered film fragments on the surface	Allowed in size no more than 30x30 mm or 10x100 mm of no more than 1 piece	Allowed
Burnout because of fallen knots, damage and cracks in the outer layer	Not allowed	Allowed with a diameter of no more than 6 mm in the amount of 1 piece per 1 sheet	Allowed
Burnout because of rough peeling	Not allowed	Allowed size no more than 30x30 mm (subject to strong adhesion of the film)	Allowed
Mark from the internal overlaps of the scarf joint or the joints of the edge-glued layer	Allowed (without damaging the facing coating)	Allowed
Scratches and risks	Minor damage to the facing coating up to 300 mm long is allowed, no more than 2 pieces per sheet	Allowed with a length of no more than 500 mm in quantities of no more than 3 pieces per 1 sheet	Allowed
Imprints from press plates and garbage	Not allowed	Allowed
Streaks and stains from press plates	Allowed
Blistering film	Allowed without disturbing the facing coating with a diameter of up to 50 mm in the amount of 2 pieces per 1 sheet	Allowed without destruction of facing coating with a diameter of up to 100 mm in the amount of 2 pieces per 1 sheet	Allowed
Local delamination of plywood (bubble)	Not allowed		Allowed
Pressed veneer parts	Not 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 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 depth, mm, no more
	2	2	5
	Length, mm, no more
	10	25	without limitation
Defects in pruning, chips during sawing	Allowed subject to sealing with paint, length of chips, mm, no more		Allowed
Defects in pruning, chips during sawing	5 width up to 1 mm	10 width up to 5 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.
Paint smudges on the surface of the sheet	Allowed width no more than 10 mm	Allowed width no more than 20 mm	Allowed
Mechanical damage to outer and inner layers	No more than 3 mm is allowed along one edge of the sheet (subject to coating with moisture-proof paint)		Allowed

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