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\We are suppliers of Gypsum Board Starch plays an important role in the manufacture of gypsum wallboard, protecting the gypsum crystals that form the bond between the gypsum core and the paper. These crystals, located at the edges of the wallboard, are subject to dehydration and breakage during high temperature exposure in the drying kilns. The starch holds water during kiln drying and protects these bonding crystals from dehydration. Severe dehydration causes the paper to peel off of the board core. Starch is gelatinized during the manufacturing process. Due to its hydrophilic nature, it functions by controlling the rate of water loss during drying of the board. Gelatinized starch migrates to the surface and controls the rate of crystallization of the gypsum, providing a strong bond between the gypsum and the liner.
\In the process of making Gypsum Board, VIKAS GYP GUM is one of the necessary additives.
\Features:
\Good Migration Behaviour, Strong Water-Holding Capacity,Excellent Binding Power,Easily Cooked.
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Technical & Physical Parameters
\Dry Bulk Density 770 Kg/m3 (Max)
\Wet Bulk Density 1.35-1.5 g/cm3 Water To Powder Ratio 1:1.25 Setting Time 20-25 Minutes
\Chemical Composition Calcium Sulphate Hemihydrate : CaS04. ½ H2O
\Coverage Applied Thickness 13 mm Coverage* 27 sq-ft/25 kg bag
\ADVANTAGES :
\UNIFORM & STABLE VISCOCITY
\SMOOTH & FINE FINISHING OF BOARD
\QUICK SPREADING &SETTING
| PARAMETER | SPECIFICATIONS |
| Appearance | Light creamy to white color fine powder, odorless |
| Moisture (% w/w) | 12.0 % Max. |
| pH{10%Aqueous Solution) | 5.00 – 7.00 |
| Total Ash,% on DB | 1.0 Max |
| Viscosity of 15% hot water solution in B4 CUP | 27 – 29 seconds |
| Sieve Retention % on 100 mesh . | 1.00 % Max |
| SOLID CONTENT | 15 – 16 % |
| PACKING | 50 kgs HDPE bags |