SRG Wistara
WISTARA BLOCK BOARD
Born tough as per IS 1659: 2004
Wistara block board of BWP grade is an exterior grade boiling water proof block board manufactured carefully with cross band from the tropical hard wood and pine seasoned wood as plumber core. Wistara block board is bonded with superior quality phenolic synthetic resin of BWP grade, manufactured at our own modern resin manufacturing plant.
The process and parameters of the resin manufacturing are controlled as suggested in 848: 1996.
Wistara BWP grade block board are treated with preservative chemicals at different stages:
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First stage : Lumber and veneer are treated with boron containing chemical solution.
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Second stage : Glue line is fortified with non-leachable organophosphorus compound.
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Third stage : Boron treatment along with copper and chromium.
Wistara block board is free from any type of attacks by destroying microorganism.
Special features:
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Standard thickness - 19mm, 25mm, specific thickness and double Cross bands block board are also available against specific Order.
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Standard sizes. 8’x4’,7’x4’,6’x4’, 8’x3’,7’x3’,6’x3’.
Technical details
Name Of The Properties |
Result obtained |
Specified in is 1659 ;2004 |
1.Moisture Content |
10 % |
5-15% |
2.Specific Gravity |
600 kg/cbm |
Na |
3.Resistance To Water |
Pass standard |
Shall be minimum pass standard. |
4.Adhesion Of Ply |
Pass standard |
Pass |
5.Modulus Of Rupture |
52 n/mmsq |
50 n/mm |
6.Modulus Of Elasticity |
5200 n/mmsq |
5000n/mmsq |
7. Spot Test |
Penetration of Borax Boric Acid |
Shall show through Penetration of preservative chemical |
8.Water Absorbtion |
< 2 % |
Na |
9. Screw Holding |
> 1000n |
Na |
10 Nail Holding |
500n |
Na |
Born tough and excellent as per IS 1659: 2004
Wistara MR block board is an interior grade moisture resistance block board manufactured carefully with tropical hard wood as cross band and pine seasoned wood as plumber core.
Wistara MR block board is bonded with superior quality synthetic amino plus resin manufactured in our own modern resin plant.
Wistara MR block board are born with suitable protection by preservative chemicals to all its battens. The adhesive used, is mixed with suitable organophosphorus compound.
Wistara MR block board is free from the attack of any destroying microorganism.
Special features:
-
Standard thickness: 19mm. 25mm,
-
Sizes: 8’ x4’, 7’x4’,6’x4’,8’x3’,7’x3’,6’x3
-
Widely used partition, shutters, wardrobe, frame, roofing
Technical details:
Name of Properties |
Result Obtain |
Specified 1659:2004 |
|
10 % |
5- 15% |
|
Pass standard |
Shall be pass standard |
|
Pass standard |
Pass standard |
|
43 n/mmsq |
40 n/mmsq |
|
4200 n/mmsq |
4000n/mmsq |
|
Penetration of borax, boric acid |
Show penetration preservative. |
|
600 kg /cbm |
Na |
|
1100n /mmsq |
Na |
|
60 n/mmsq |
Na |
|
<2% |
Na |