RUBBER WOOD FINGER JOINTED PANELS

RUBBER WOOD FINGER JOINTED PANELS

I. Rubber Wood Panel Grade:

No. Grade Description Illustrate
1 AA Two sides are grade A
2 AB One side is grade A, one side is grade B
3 AC One side is grade A, one side is grade C
4 BB Two sides are grade B
5 BC One side is grade B, one side is grade C
6 CC Two sides are grade C

II. Specification of one side:

No. Specifications Grade A side Grade B side Grade C side
1 Live knot Ø < 10mm, 3 knot / m2 Ø < 20mm, 4 knot /m2 No limited
2 Dead knot  Ø < 3mm, 2 knot /m2 Ø < 7mm, 2 knot /m2 Ø < 10mm, no limited knot
3 Pith tube  Not allow Allow for 3 X 100mm Allow
4 Discolor heart wood  Not allow Not allow Allow,
5 Same finger joint line  Max 1 / m2 Max 2 /m2 Max 5 /m2
6  Uniform light color  9/10 7/10 4/10


III. Common specification for all grade:

–          Width of raw material:             35 – 70 mm

–          Length of raw material:           180 – 800 mm

–          Dimension of board:                18, 20, 23 x 1220 x 2440 mm

–          Finished product:                     Thickness (± 0.3 mm); Width (0, ±1mm); Length (0, ± 1mm)

–          Moisture content:                     10 ± 2%

–          Sanding            :                       #180, #240 and #320

–          The cuts are straight and perpendicular.

GENERAL SPECIFICATION OF RUBBER WOOD FINGER JOINTED PANEL

liveknot

Live knot

dead knot

Dead knot (Black knot)

pith tube

Pith tube (Black line)

Repaired hole

Repaired hole

Crack line

Crack line

Hole

Hole

De-laminate

De-laminate

Honeycomb

Honeycomb