Customization: | Available |
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Condition: | New, New |
Automation: | Automatic, Automation |
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Gypsum board specification | |
Length(mm) | 2400,2440,2500,2700,3000 |
Width(mm) | 1200,1220 |
Thickness(mm) | 8,9,9.5,12,12.5,12.7,15,18 |
Requirement of the raw material |
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Raw materials | Item | Specification |
Calcined gypsum powder |
Fineness | 0.2mm,Remnant<10% |
Initial set time | 3.5-5.5 minutes | |
Final set time | 7.5-10.5 minutes | |
Crystal water | 4.5%-5% | |
Half-water gypsum powder | >65% | |
Bending strength (2 hours) | 1.8 Mpa | |
Paper | Weight | 190-220g/ Square meters |
Thickness | 0.36-0.4mm | |
Air permeability | 0.85-1.6μm/pas | |
Water absorption( Cobb ) | 15-30g/square meters | |
Tensile strength | Portrait 12.5 KN/m, transverse 3.5 KN/m | |
Transverse expansion and contraction | <2% | |
Moisture | 10%±2 | |
Denaturized starch | Content of the starch | >70% |
Moisture | 11%-13% | |
PH | 6.5-7.5 | |
Protein | <0.3% | |
Solubility in 20-40 water(c) | 73%-78% | |
Foaming agent | Condensate | >30% |
Ligarine | <3% | |
Inorganic salts | >2.5% | |
PH | 7-9 |