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Wall putty(Skim Coat) is a kind of decorative materials to make wall surface smooth, it can be used in exterior […]
Wall putty(Skim Coat) is a kind of decorative materials to make wall surface smooth, it can be used in exterior and interior wall decoration. HPMC plays an essential role in wall putty(skim coat) to improve the key properties like water retention, open time, crack resistance, workability, etc.
| Chemical Name: | Hydroxypropyl Methyl Cellulose/Methyl Hydroxypropyl Cellulose |
| Appearance: | White or off-white powder |
| Delayed Solubility: | No |
| Moisture content: | ≤6 ％ |
| Ash content: | ≤5 ％ |
| Methoxy content: | 19-24 ％ |
| Hydroxypropyl content: | 4-12 ％ |
| pH value: | 6-8 |
| Particle size: | 99% pass 80 mesh |
| Viscosity: | 85,000-110,000 mPa.s (NDJ-1, 2% solution, 20℃) 45,000-60,000 mPa.s (Brookfield-RV, 2% solution, 20℃) |
HPMC for skim coat/wall putty features:
● Good water retention will make sure all the additives reach the best performance in the product formulation.
● Good workability to increase the efficiency.
● HPMC could provide a good filming property on the surface of the wall putty, could reduce the water absorption of the base wall. Reduce the risk of cracking.
● Good say-resistance property by providing a good viscosity of the wet mortar.
Packaging and storage
Standard packed in 25 KG per paper plastic composite bag
Big bags or other special packages are possible on request
Weight/20′ container: approx. 10 metric tons with pallets, approx. 14 metric tons without pallets
Weight/40′ container: approx. 24 metric tons with pallets, approx. 26 metric tons without pallets
Stored in its original packaging in a dry and place with temperature below 30℃.
It is recommended to use HPMC within 2 years.
Safety notes
The data presented above is in accordance with the present state of our knowledge, but doesn’t absolve the user from carefully checking it all immediately on receipt. We reserve the right to alter product constantly within the scope of technical progress or new developments. The recommendations made above should be checked by preliminary trials because of conditions during processing over which we have no control of, especially where other companies’ raw materials are also being used.
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