MR GRADE BLOCK BOARD (IS: 1659-2004)
“Prestige” Commercial Block board is manufactured from the combination of selected seasoned, durable hardwood, timber battens and veneers. It is bonded with Urea Melamine Formaldehyde resin at high temperature and pressure which gives our boards an advantage over other commercial grade boards. The resin gives our board enough strength to resist warm water up to 8 hours.
Thickness (mm) (19mm) | 8×4 | 7×4 | 6×4 | 5×4 |
| 8×3 | 7×3 | 6×3 | 5×3 |
Thickness (mm) 25 to 35 | 6 | 6.25 | 6.25 | 6.75 | 7 | 8 |
| 2.25 | 2.5 | 2.75 | 3 | 3.5 | 4 |
Technical Specification
| Test Prescribed in IS: (1659-2004) | Minimum Value | Observed Value |
Dimensional Changes Caused by Humidity | No-delamination in the extreme range of humidity. Dimensional change not more than ±1mm in local planeness. | No-delamination observed. Dimensional change within the specifies limit. |
| Mycological Test | No appreciable sign of separation edges. | Satisfactory |
| Adhesive of Plies | Minimum Pass Standard | Excellent |
| Water Resistance (Soaking of test pieces for 3hrs in water at 60±2°C | Minimum Pass Standard | Excellent |
| Modulus of Elasticity | 4000 N/sq.mm | 5015 N/sq.mm |
| Modulus of Rupture | 40 N/sq.mm | 53 N/sq.mm |
Applications
- Furniture
- Partitions
- Racks
- Shelves
- under layer for decorative
Salient Features
- Resistant to twisting and warping
- Superior screw holding and nailing capacity
- Easy workability
- Seasoned and chemically treated timber used
BWP GRADE BLOCK BOARD (IS: 1659-2004)
“Prestige” Waterproof Block boards are manufactured with selected veneers and properly seasoned wood. Boards are treated with preservatives of special quality to resist insect, borer, termite and fungi attack. It is bonded with high quality Phenol Formaldehyde Resin (PF) with high pressure and temperature to ensure high mechanical strength and dimensional stability
Technical Specification
| Test Prescribed in | Minimum Value | Observed Value |
| Dimensional Changes | No-delamination in the extreme range of humidity. Dimensional change not more than ±1mm in local planeness. | No-delamination observed. Dimensional change within the specifies limit. |
| Mycological Test | No appreciable sign of separation edges. | Satisfactory |
| Adhesive of Plies | Minimum Pass Standard | Excellent |
| Hot Water Resistance | There shall not be any Delamination after 72 | No-delamination observed. |
| Preservation Treatment | penetration of preservative chemicals should be observed. | Confirmed |
| Modulus of Elasticity | 5000 N/sq.mm | 6050 N/sq.mm |
| Modulus of Rupture | 50 N/sq.mm | 64 N/sq.mm |
Thickness (mm) (19mm) | 8×4 | 7×4 | 6×4 | 5×4 |
| 8×3 | 7×3 | 6×3 | 5×3 |
Thickness (mm) 25 to 35 | 6 | 6.25 | 6.25 | 6.75 | 7 | 8 |
| 2.25 | 2.5 | 2.75 | 3 | 3.5 | 4 |