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PRODUCT DESCRIPTION
WELAN GUM is thermally resistant biopolymer for viscosity for viscosity and suspension control in industrial applications, it is stable up to 300℉（150℃）in water-based drilling, workover and completion fluids, with unique features for Lower Shear Rate Viscosity (LSRV) of drilling fluids and divalent ion tolerance
TECHNICAL SPECIFICATION
| Test Item |
Specifications |
|
Appearance |
Off-white to tan powder |
| Solubility |
Hot or cold water |
|
Viscosity 1% gum to 1%KCL Brookfield, LVT. 60 rpm, spring 3, 25oC |
Min.1500 mPa.s |
|
Loss on drying |
max.13.0% |
|
pH (of 1% solution) |
7.0-10 |
|
Particle size |
Tyler standard screen scale not less than 95% through |
|
Shelf Life |
2 Year after production date under the specific storage conditions |
FEATURES
1. High viscosity under low concentration.
2. High viscosity under low rotation.
3. Fine moisture retention.
4. Peculiar stability under high salinity.
5. High temperature resistance.
PACKAGE AND STORAGE
Packaged in 25kg paper bag. Stored in s shady, dry and ventilated place.
