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Water-retaining Thickening CMC Sodium Carboxymethyl Cellulose for Interior Wall Putty Moisture Lock
| MOQ: | 1 ton |
| Price: | Negotiation |
| Standard Packaging: | 25kg PP Bag |
| Delivery Period: | 5-8 work days |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union, |
| Supply Capacity: | 500000 Ton/Year |
Water-retaining CMC
,Thickening Sodium Carboxymethyl Cellulose
,Interior Wall Putty CMC
Sodium Carboxymethyl Cellulose (CMC) is a water‑soluble anionic cellulose derived from natural cellulose. It appears as white fibrous powder, soluble in cold and hot water to form viscous colloids. This construction‑grade CMC is widely used as a functional additive for interior wall putty.
It delivers excellent water retention, locking moisture in slurry to avoid rapid dehydration, cracking and chalk‑off. It also provides thickening, lubrication and suspension performance for better troweling workability, anti‑sagging and easy sanding. It improves putty adhesion and stabilizes the system to prevent filler settlement.
We supply multiple viscosity grades: low viscosity for low‑cost engineering putty, medium viscosity for premium interior putty, and high viscosity for higher water retention demand. It can be compounded with HPMC to optimize formula cost. Free samples, TDS and COA are available for customer testing.
Construction-grade CMC is widely used in interior and exterior wall putty, tile adhesive, various dry powder mortars, waterproof coatings, and gypsum products. CMC core functions include water retention, thickening, bonding, and crack resistance, delaying water loss and cracking of the mortar, optimizing the application feel, and improving the strength and adhesion of the finished product. CMC is compatible with various civil engineering and home decoration building material formulations, offering excellent cost-effectiveness.
- CMC-M6 / IM6: 400-800 mPa・s, general-purpose, good water retention, smooth application, addition amount 5-8 kg/ton.
- CMC-HL8: 500-600 mPa・s, neutral, fine texture, not easy to peel, preferred for interior walls.
- CMC-M3: 200-400 mPa・s, low cost, suitable for low-end interior walls, dosage 8-10 kg/ton.
- CMC-H10 / IH6 / HL9: 800-1200 mPa・s, high viscosity and strong water retention, crack resistance, good weather resistance, addition amount 4-6 kg/ton.
- T8 (Paint Grade): 800-2000 mPa・s, high-end exterior wall/elastic putty, stable system, waterproof.
- Standard Interior Walls: M6 (400-800), best value for money.
- High-end Interior Walls/Furnishings: HL8 (500-600, neutral), good feel, durable.
- Exterior Walls/Crack-resistant Putty: H10/HL9 (800-1200), strong water retention and crack resistance.
- Low-cost Projects: M3 (200-400), slightly larger usage.
| Test Parameter | Limit | Result |
|---|---|---|
| Appearance | White or light yellow fibrous powder | Approved |
| Viscosity (mPa*s) 1% soln sample, 25℃ | 7000-8000 | 7420 |
| Loss on drying, % | ≤8.0 | 6.35 |
| pH (1% soln) | 6.0-8.5 | 7.30 |
| Degrees of Substitute | 0.80-0.90 | 0.83 |
| Assay, % | ≥90.0 | 90.74 |
Shanghai Prior Chemical Scientific And Technical Co. LTD. (Grade A Tax Credit) was established in 2016. Leveraging China North Industries Group Corporation (NORINCO GROUP) resources, the company trades industrial materials including:
- Hydroxyethyl cellulose (HEC)
- Hydroxypropyl methyl cellulose (HPMC)
- Sodium carboxymethyl cellulose (CMC)
- Ethyl cellulose (EC)
- Nitrocellulose (NC)
The company independently manufactures integrated nail-fastening products and holds equity in ammonium carboxymethyl cellulose (CMC-NH4) production and marketing. It holds nearly 70% domestic market share in HPMC for automotive exhaust honeycomb ceramics.
