OST/BST Block Board

Product Details

OST/BST Block Board

Description

Benson Black Boards are made up imported Pinewood timber, cut of central beams and composed core stock of battens of high resistance & quality combined with anto-borer & anti-termite to offer a Black Board of giving efficient and needed protection & to produce a long lasting Black Board. All the wooden components of the Black Board are seasoned under accurate temperature to obtain required moisture content percent according to IS: 1141 in our modern seasoning plant and then cut with prefect precision to get uniform thickness of battens.Block Boards are bonded with unextended endothermic adhesive for MR grade & unextended exothermic adhesive for BWP grade conforming to IS:848-2006 & hot pressed under controlled temperature & high pressure to get bonding. Benson Black Boards give exceptional strength & durability to your wall cabinets, cupboards, wardrobes & other furniture woodwork. Te artisan will find it easy & hassle-free to work since these provide additional grip for screw and nails.

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Features

  • Hexadic calibrated tech (6 times) for mirror quality smooth finish
  • Anti fungal and anti bacteria coating
  • Formaldehyde Emission level: E1 as per European standard
  • 15 layered ply for 19 mm (Additional 2 layers for more bonding & strenght)
  • 13 layered ply for 16 mm (Additional 2 layers for more bonding & strenght)
  • 11 layered ply for 12 mm (Additional 2 layers for more bonding & strenght)
  • Imported High-density timber
  • IS 10701 Structural grade
  • Double Tenderized composed core treated in impregnation plant
  • Hydroxybenzene base adhesive
  • Long panels for better durability
  • Borer, fungus & termite proof.
  • Low flammability and smoke generation
  • Three-tier preservative treatment for deeper penetration
  • Resists for ignition, surface spread, and penetration
  • Leach-resistant: fire retardant chemical will not wash out
  • High-quality preservatives
  • Long core
  • Face – Gurjan
  • Calibrated core
  • Chemically treated all 15 layers to make it robust/durable and termite & borer proof

Specification

Weight:  45kg+ for 19mm (8×4 basis) for plywood

Moisture Content: 8 to 12%

Glue shear Strength (in dry): Above 180 kgf

Above 550 kgf/cm2 (in face grain

Above 450 kgf/cm2 (in the right

angle to the face grain)

Sum of value:  Above 1050 kgf/cm2

Static bending strength MOE (Modulus of Elasticity):

Above 8500 N/mm2 (along the face grain)

Above 5000 N/mm2 (across the face grain)

MOR (Modulus of Rupture): Above 70 N/mm2

(along the face grain)/p>

Above 50 N/mm2

(across the face grain)

Screw holding strength: Above 350 kgf

Nail holding strength: Above 150 kgf

Swell in water after 8 hours: Less than 1%

Mycological strength: Excellent

Retention of preservation: More than 15 kg/m3

Preservative: A.C.C Fixed Type

Flammability test: >40 minutes

Flame penetration test: >35 minutes

Rate of burning*: when tested for

standard 12-mm thickness: >40 minutes

Hygroscopicity (kept at about 90% relative humidity for

a fortnight): >12-14%

Retention of fire-retardant chemicals (kg/m3): >70-80

Range of Thickness

4mm | 6mm | 9mm | 12mm | 16mm | 19mm | 25mm

Warranty

As Per warranty Certificate