Cellulose ethers and microcrystalline cellulose do similar jobs in very different industries: they thicken, hold water, suspend particles, bind and form films. Start from your industry, then open the product for its grades, specification and documents.
| Industry | Products used | What they do | Guides |
|---|---|---|---|
| Construction and dry-mix mortar | HPMC, MC, starch ether, VAE RDP, CMC construction grade | Water retention, open time, sag resistance, adhesion | construction guides |
| Oil and gas drilling | PAC LV/HV, CMC drilling grade, HEC | Fluid-loss control, viscosity, salt tolerance | drilling-fluid guides |
| Food and beverages | CMC food grade, colloidal MCC, MCC | Thickening, suspension, anti-caking, bulking | food and pharma guides |
| Pharmaceuticals and supplements | MCC, HPMC, HPMCP, HPMCAS, EC | Tablet filling and binding, coatings, controlled release | MCC guides |
| Detergents and home care | CMC detergent grade | Anti-redeposition, thickening of liquids | CMC in detergents |
| Paints, coatings and personal care | HEC, HPMC | Thickening, stabilising, easy dispersion | HEC applications |
| Paper, textiles and ceramics | CMC paper, textile and ceramics grades | Sizing, printing-paste thickening, binding glazes | CMC applications |
Construction and dry-mix mortar
In tile adhesives, renders, putties, plasters and self-levelling compounds, cellulose ethers keep water in the mortar long enough for the cement or gypsum to set, and control workability, open time and sag.
What to specify: viscosity grade and measuring method, water retention, surface treatment (delayed dissolution) and particle size.
- HPMCWater retention, open time
- Methyl celluloseWater retention
- Starch etherSag resistance
- Redispersible powderAdhesion, flexibility
- CMC construction gradePutty and gypsum
Pharmaceuticals and supplements
MCC is the standard filler and binder for direct compression and wet granulation. HPMC forms film coats and controlled-release matrices; HPMCP and HPMCAS give enteric protection and amorphous solid dispersions; ethyl cellulose is used for barrier coats and controlled release.
What to specify: pharmacopoeia (USP, EP, CP), particle size and bulk density for MCC, viscosity and substitution type for HPMC, and the regulatory documents your market requires.
- MCC PH101–PH302Filler and binder
- HPMCFilm coating, matrices
- HPMCPEnteric coating
- HPMCASSolid dispersions
- Ethyl celluloseControlled release, coating
Food and beverages
Food-grade CMC (E466) thickens and stabilises beverages, dairy, sauces and bakery fillings. Colloidal MCC keeps particles suspended in drinks; MCC (E460) is used for bulking and anti-caking.
What to specify: food-grade specification (JECFA or local standard), viscosity, degree of substitution for CMC, and purity items such as heavy metals.
- CMC food grade (E466)Thickening, stabilising
- Colloidal MCCSuspension in drinks
- MCCBulking, anti-caking
Oil and gas drilling
In water-based drilling muds, PAC and drilling-grade CMC reduce fluid loss and build viscosity. PAC keeps working in salt water where CMC loses performance; HEC is used in some completion fluids.
What to specify: LV or HV type, fluid-loss and viscosity results in the mud system you use (fresh or salt water), and purity.
- PAC LV / HVSalt-tolerant fluid-loss control
- CMC drilling gradeFresh-water muds
- HECCompletion fluids
Paints, coatings and personal care
HEC is the common thickener for water-based paints because it disperses easily and stays stable. HEC and HPMC also thicken and stabilise shampoos, gels and creams.
What to specify: viscosity grade, dispersion behaviour (surface-treated or not) and compatibility with the rest of the formulation.
Detergents and home care
CMC keeps soil suspended in the wash water so it does not settle back on fabric (anti-redeposition), and thickens liquid detergents.
What to specify: active content and degree of substitution at the dose you use; cost in use matters more than the highest purity.
- CMC detergent gradeAnti-redeposition, thickening
Ceramics, paper and textiles
CMC binds and suspends glazes and bodies in ceramics, improves surface sizing and coating in paper, and thickens printing pastes and sizes warp yarn in textiles.
What to specify: viscosity, degree of substitution and solution clarity for the process.
- CMC ceramics gradeGlaze suspension
- CMC paper gradeSurface sizing
- CMC textile gradeWarp sizing, printing
- CMC mosquito-coil gradeBinder for coils
How to choose a grade
- Construction: viscosity and water retention at site temperature; set time and sag.
- Drilling: performance in salt and fresh water, measured by mud tests.
- Food and pharma: purity, regulatory documents and lot traceability.
- Detergents and paper: cost in use at the dose that gives the effect.
Send your formulation, get a matched grade
Tell us the application and the grade you use now. We suggest an equivalent grade and send its TDS and a sample.
FAQ
Which cellulose ether is used most in construction?
HPMC is the main water-retention agent in dry-mix mortars, tile adhesives and plasters, often with starch ether and redispersible polymer powder.
What is used in drilling fluids?
Polyanionic cellulose (PAC) and drilling-grade CMC for fluid-loss control and viscosity; HEC in some completion fluids.
Which products are used in food?
Food-grade CMC (E466), MCC (E460) and colloidal MCC for thickening, suspension and anti-caking.
What is the difference between HPMC and HEC?
Both are non-ionic thickeners. HPMC is preferred in cement and gypsum mortars for water retention; HEC disperses more easily and is the usual choice in water-based paints.
Can you match the grade I use now?
Usually. Send the product name, viscosity and supplier grade, and we suggest an equivalent with its TDS for a side-by-side test.