Plaster board mark ОB-190
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Plaster board mark ОB-190

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Boardofmark "ОB-190" is used as plasterlayer during the production of gypsum sheets. It is produced in sheets and rolls. Size of rolls and sheets is agreed with buyer. 

Rate for mark "OB-190":
Tech spec  5443-013-00278882-2006
Weight 1m2, g 190±5
Thickness, mm 0,29±0,02
Density,g/sm3 0,63±0,02
Burst strength, кPа, not less 120
Water absorbency with one side watering,  g/m2 (Cobb 60), not more:
Tender side:
Back side turned to gypsum:
Float moisture, s, not less 600
Breaking force with strip width 15 mm, N, not less:
-in machine direction:
-in cross direction:
Air permeability, s, not more 80
Moisture, % 8±1


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