Block Boards
Block boards, comprising a core of strips of hardwood within a hardwood frame sandwiched between two or more layers of veneers on either side, are known for their extraordinary strength, dimensional stability and durability. With their immense load bearing capacity, lightweight nature and low bendability, block boards are perfect for furniture building as in tables, shelves, cabinets and benches, and in vertical applications such as wardrobes, doors, panels, partitions, etc.
National’s block boards are composed of seasoned 100% Meghalaya pinewood or hardwood at the core, with superior quality face veneer from the Dipterocarpacae and Shorea assamica species of timber. Manufactured using similarly rigorous standards and processes as our plywood, our block boards are available in two grades - BWP and MR, in thicknesses ranging from 16 to 32mm.
Boiling Water Proof (BWP) grade block board
Our BWP grade block board is waterproof, dimensionally stable, borer and termite resistant and with a high elasticity and load bearing capacity. These features make it perfect for interior and exterior areas with high exposure to moisture content. Made with 100% Meghalaya pinewood and hardwood frames and fillers and bonded with the best PF resin, this product conforms to IS 1659 specifications.
Moisture Resistant (MR) grade block board
Our MR grade block board is strong, dimensionally stable and highly resistant to water and insects. While BWP grade is preferred for exterior use, MR grade is ideal for interior applications where direct exposure to moisture is less. Composed of 100% Meghalaya pinewood and hardwood frames and fillers and bonded with the best MUF resin, the product conforms to IS 1659 specifications.
| BWP GRADE | ||
|---|---|---|
| Parameters | Specified value | Observed value |
| Adhesion of plles | Pass Standard | Excellent |
| Resistance to water | Pass Standard | Excellent |
| Modules of elasticity (N/sq.mm) | 5000 | 5000-6500 |
| Modules of rupture (N/sq.mm) | 50 | 50-60 |
| Dimensional changes caused by humidity | d L 1/150 | d L 1/150 |
| Mycological test | No de-lamination | N.A. |
| Preservative treatment | Borax treatment of frames | Borax treatment of frames. Glue Line Treatment. CCB Treatemnt of Boards |
| MR GRADE | ||
|---|---|---|
| Parameters | Specified value | Observed value |
| Adhesion of plles | Pass Standard | Excellent |
| Resistance to water | Pass Standard | Excellent |
| Modules of elasticity (N/sq.mm) | 4000 | 4000-5000 |
| Modules of rupture (N/sq.mm) | 40 | 40-50 |
| Dimensional changes caused by humidity | d L 1/150 | d L 1/150 |
| Mycological test | No de-lamination | Excellent |
| Preservative treatment | Borax treatment of frames | Borax treatment of frames. Glue Line Treatment. |
Block Boards
Block boards, comprising a core of strips of hardwood within a hardwood frame sandwiched between two or more layers of veneers on either side, are known for their extraordinary strength, dimensional stability and durability. With their immense load bearing capacity, lightweight nature and low bendability, block boards are perfect for furniture building as in tables, shelves, cabinets and benches, and in vertical applications such as wardrobes, doors, panels, partitions, etc.
National’s block boards are composed of seasoned 100% Meghalaya pinewood or hardwood at the core, with superior quality face veneer from the Dipterocarpacae and Shorea assamica species of timber. Manufactured using similarly rigorous standards and processes as our plywood, our block boards are available in two grades - BWP and MR, in thicknesses ranging from 16 to 32mm.
Boiling Water Proof (BWP) grade block board
Our BWP grade block board is waterproof, dimensionally stable, borer and termite resistant and with a high elasticity and load bearing capacity. These features make it perfect for interior and exterior areas with high exposure to moisture content. Made with 100% Meghalaya pinewood and hardwood frames and fillers and bonded with the best PF resin, this product conforms to IS 1659 specifications.
Moisture Resistant (MR) grade block board
Our MR grade block board is strong, dimensionally stable and highly resistant to water and insects. While BWP grade is preferred for exterior use, MR grade is ideal for interior applications where direct exposure to moisture is less. Composed of 100% Meghalaya pinewood and hardwood frames and fillers and bonded with the best MUF resin, the product conforms to IS 1659 specifications.
| BWP GRADE | ||
|---|---|---|
| Parameters | Specified value | Observed value |
| Adhesion of plles | Pass Standard | Excellent |
| Resistance to water | Pass Standard | Excellent |
| Modules of elasticity (N/sq.mm) | 5000 | 5000-6500 |
| Modules of rupture (N/sq.mm) | 50 | 50-60 |
| Dimensional changes caused by humidity | d L 1/150 | d L 1/150 |
| Mycological test | No de-lamination | N.A. |
| Preservative treatment | Borax treatment of frames | Borax treatment of frames. Glue Line Treatment. CCB Treatemnt of Boards |
| MR GRADE | ||
|---|---|---|
| Parameters | Specified value | Observed value |
| Adhesion of plles | Pass Standard | Excellent |
| Resistance to water | Pass Standard | Excellent |
| Modules of elasticity (N/sq.mm) | 4000 | 4000-5000 |
| Modules of rupture (N/sq.mm) | 40 | 40-50 |
| Dimensional changes caused by humidity | d L 1/150 | d L 1/150 |
| Mycological test | No de-lamination | Excellent |
| Preservative treatment | Borax treatment of frames | Borax treatment of frames. Glue Line Treatment. |