BB/CC Face - Utility Veneer Core - Sound Sanded Back Grade

Product Name	Commercial Plywood
Grade	BB/CC – UTVC - SSB
Face & Back Veneer	Okoume / Bintangor
Core Veneer	Poplar
Glue Type	Type II MR (Moisture Resistance: Interior, Urea Formaldehyde)
Thickness	9mm(7ply) / 12mm(9ply) / 15mm(11ply) / 18mm(13ply)
Size(mm)	1200 x 2400 / 1220 x 2440 / 1250 x 2500

BB/CC Grade for Face (Okoume)

Live Knots	25.4mm max. diam
Dead Knots	Well puttied & color matched
Knotholes	12.7mm max. diam. Puttied & color matched
Burls	Yes
Color Variation	Slightly
Stain & Mineral Streak	Blending
Dry Pitch & Bark Pockets	Well puttied & Color matched
Wormholes, Pinholes	11 per 1M2, 32 per 1220 x 2440. 1.6mm max diam.
Worm tracks	Filled linear hole 15.9mm max. well puttied
Vane Marks	Blending, Smooth
Cross Breaks	Hairline 50.8mm max. length
Doze	Firm, Slight, well Puttied, Blending

Utility Grade for Veneer Core (Poplar)

Laps	A few, not visible & not touchable on face, strongly bonded to avoid delaminating.
Voids	Yes, less than 3.0mm, one-two in single layer.
Shims	Yes
End Split	Yes, not visible on face
Uneven Core Thickness	Yes, symmetrically composed
Numbers of Components	Not specified

SSB Grade for Back Face (Okoume)

Live Knots	50.8mm max. diam.
Dead Knots	Well puttied & color matched
Knotholes	19mm max. diam. Puttied & color matched
Burls	Yes
Color Variation	Yes
Stain & Mineral Streak	Blending
Dry Pitch & Bark Pockets	Well puttied & Color matched
Wormholes, Pinholes	11 per 1M2, 32 per 1220 x 2440. 1.6mm max diam.
Worm tracks	Filled linear hole 15.9mm max. well puttied
Vane Marks	Blending, Smooth
Cross Breaks	Hairline 50.8mm max. length
Doze	Firm, Slight, Well Puttied, Blending

Manufacturing Standard

Items	BB/CC Face Veneer	SSB Back Veneer
Joint	Not allowed	Not allowed
Wrinkles & Delaminating	Not allowed.	Not allowed
Open Splits	Hair line	Hair line 502mm Max.
Filled or Puttied Splits	Hair line, 152mm Max. on panel end only	Hair line, 152mm Max. on panel end only
Fill & Putty Smear	Three 1.6mm x 356mm at each end, color matched	Three 1.6mm x 610mm at each end, color matched
Rough Cut& Ruptured Grain	Color matched	Color matched
Knife Marks	Not allowed	Not allowed
Tape & Glue Residue	Not allowed	Not allowed
Sanding	Sanded	Sanded

Physical Test

Moisture Contents	Less than 12%
Adhesion	Resistant 2 hours boiling & 3 hours drying at 60°C
Thickness Tolerance	±0.5mm for 6mm & thicker
Allowance in Width & Length	±2.0mm
Diagonal Allowance	Max. 3.0mm
Warp	0.1% (1.22mm against 1220mm wide, 2.44mm against 2440mm long)