CMC · Fast-dissolving multi-industry
Instant CMC
Surface-treated CMC that disperses lump-free and reaches full viscosity fast — DS ≥ 0.95.
- Degree of substitution
- ≥ 0.95
- Purity
- ≥ 97.0 %
- pH (1 % solution)
- 6.5 – 8.5
- Moisture
- ≤ 10.0 %
- Form
- Surface-treated powder · granules on request
Common to all grades
[01]Overview
Sentai Instant CMC (R-series) is a high-DS sodium CMC with a proprietary surface treatment developed in-house. Particles wet out and disperse individually before they swell, so the powder can be added straight to water without fish-eyes or lumps, reaching full viscosity in a fraction of the time of untreated CMC. A granulated version is available for dust-free dosing.
- Typical dosage
- Same as standard CMC of equivalent viscosity
- HS code
- 3912.31
- CAS No.
- 9004-32-4
What it does
- 01Lump-free dispersion without pre-wetting or high-shear mixing
- 02Fast viscosity build — shorter batch times, lower energy
- 03High DS (≥ 0.95) for clarity, salt and acid tolerance
- 04Granulated option for low-dust automated dosing
[02]Grades & specifications
7 grades
Values are specification limits. Typical values and test methods are on the full TDS (Customer Portal or on request).
| Grade | Viscosity · mPa·s | DS | Purity % | pH | Moisture % | Spec sheet |
|---|---|---|---|---|---|---|
| C200R | ≤ 300 @1%TBC | ≥ 0.95 | ≥ 97 | 6.5–8.5 | ≤ 10 | Spec sheet → |
| C300R | ≤ 400 @1%TBC | ≥ 0.95 | ≥ 97 | 6.5–8.5 | ≤ 10 | Spec sheet → |
| C400R | 100–500 @1% | ≥ 0.95 | ≥ 97 | 6.5–8.5 | ≤ 10 | Spec sheet → |
| C1000R | ≤ 1500 @1%TBC | ≥ 0.95 | ≥ 97 | 6.5–8.5 | ≤ 10 | Spec sheet → |
| C3000R | 2500–3500 @1% | ≥ 0.95 | ≥ 97 | 6.5–8.5 | ≤ 10 | Spec sheet → |
| C4000R | 3500–4500 @1% | ≥ 0.95 | ≥ 97 | 6.5–8.5 | ≤ 10 | Spec sheet → |
| C6000R | 5500–6500 @1% | ≥ 0.95 | ≥ 97 | 6.5–8.5 | ≤ 10 | Spec sheet → |
Common to all grades
- Degree of substitution
- ≥ 0.95
- Purity
- ≥ 97.0 %
- pH (1 % solution)
- 6.5 – 8.5
- Moisture
- ≤ 10.0 %
- Form
- Surface-treated powder · granules on request
Viscosity windows
Brookfield viscosity, mPa·s, 25 °C — log scale
Grade map
Each bubble is a grade: degree of substitution on the horizontal axis, minimum purity on the vertical, bubble size by viscosity.
Product photos
The real product.
[03]Applications
Fast-dissolving multi-industry
- Fast make-down of electrode and separator-coating slurries (grade per cell-maker specification)
- Field-mixed drilling and workover fluids
- Water-based paints, adhesives and daily chemicals
- Paper coating colours and textile printing pastes
[04]Selection guide
Which grade?
- C200R–C1000R — low to medium viscosity for coatings, adhesives and fast-mixing process water.
- C3000R–C6000R — high viscosity for drilling fluids, thickened detergents and slurry make-down.
- Need ≥ 99.5 % purity or food-additive compliance? Choose battery-grade (ST) or food-grade (F) CMC — instant R-series is specified at ≥ 97 % purity.
[05]Packaging & supply
Packed for export.
- Packaging
- 25 kg kraft-composite or PP woven bag with food-grade PE liner · 500 kg / 1 t jumbo bags
- Palletising
- 40 bags = 1 t per pallet, fumigation-free plywood, stretch-wrapped
- Container load
- 20′ GP ≈ 17–20 t · 40′ HQ ≈ 25–28 t
- MOQ
- 1 t for industrial grades · battery grade negotiable
- Lead time
- 7–15 days (stock grades) · 20–30 days (custom)
- Samples
- Free 100–300 g samples, courier collect
- Payment
- T/T 30% deposit, 70% against B/L copy · L/C · D/P
- Incoterms
- FOB · CFR · CIF · EXW
- Documents
- COA · TDS · MSDS/SDS · CO · Form A · Form E
- Inspection
- Customer-appointed SGS / BV inspection accepted
- Port of loading
- Guangzhou — other South China ports on request
[06]FAQ
Instant CMC
How is instant CMC different from regular CMC?+
Regular CMC hydrates the moment it touches water, so the outside of a clump gels and seals dry powder inside ("fish-eyes"). Sentai's surface treatment delays hydration for a few seconds — long enough for each particle to disperse — so viscosity builds evenly and quickly with simple stirring.
Does the surface treatment affect the final solution?+
No. Once dispersed, the treatment releases and the polymer develops the same viscosity profile as an untreated CMC of equal molecular weight. Final viscosity, clarity and stability are specified on the TDS.
Qualify it in your process.
Free 100–300 g samples with COA, shipped within days. Tell us your formulation and target viscosity — our applications lab will suggest the closest grade.
Related product families
Products
ST
Battery-Grade CMC
≥ 99.5 % purity anode binder & dispersant for graphite and silicon-carbon electrodes.
F
Food-Grade CMC
Cellulose gum (E466) to GB 1886.232-2016 — thickener, stabiliser and protein protector.
PAC
Oil-Drilling PAC & CMC
Fluid-loss control and viscosity in fresh water to saturated brine — tested to GB/T 5005.
P
Paper-Grade CMC
Wet-end, surface sizing and coating colour CMC — viscosity tuned from 7 to 600 mPa·s.
Insights
Related
- Guide
Aug 4, 2026 · 6 min read
Instant CMC: Why CMC Forms Lumps and How Surface-Treated Grades Dissolve Lump-Free
Why CMC powder forms fish-eyes, the conventional work-arounds, how surface-treated instant CMC delays hydration for lump-free dispersion, and a dissolution procedure for reaching full viscosity first time.
GuideOct 10, 2026 · 8 min read
How to Choose Battery-Grade CMC for Lithium-ion Anodes: The Specifications That Matter
A practical guide to specifying battery-grade CMC: purity, chloride, DS, viscosity window versus slurry solids, gel count, fibre class, particle size and moisture, plus test methods and an incoming-inspection checklist.
GuideSep 22, 2026 · 8 min read
How to Read a CMC Spec Sheet: Degree of Substitution vs Viscosity vs Purity
What DS, viscosity and purity really tell you about a sodium CMC grade, why 1 % and 2 % Brookfield viscosities cannot be converted, and how DS drives salt tolerance, acid stability and clarity.