HPMC 200K

Very-high-viscosity HPMC for stronger water retention, open time, and vertical stability.

Overview of HPMC 200K

HPMC 200K is a hydroxypropyl methyl cellulose grade designed for higher-viscosity construction systems that need stronger water retention, open time, and vertical stability. It is suitable for tile adhesive, wall putty, plaster, EIFS mortar, and other dry-mix systems that require stronger application body.

Technical Specifications

Grade: HPMC 200K

Chemistry: Hydroxypropyl Methyl Cellulose

Label Value: 200000

Viscosity: NDJ 2% 180,000~220,000 mPa·s at 20°C

Other Viscosity Reference: RV 2% ≥66,000 mPa·s

CAS No.: 9004-65-3

Methoxy Group Content: 19.0–24.0%

Appearance: White to off-white powder

Hydroxypropoxy Group Content: 4.0–12.0%

Ash: Calculated as NaCl ≤4.0%; calculated as sulfate ≤5.0%v

pH: (1% aqueous solution) 5.0–8.5

Particle Size: <0.200 mm (through 60 mesh) min. 98.5% <0.180 mm (through 80 mesh) min. 90.0%

Benefits of HPMC 200K

High viscosity build for strong application body
Supports water retention and extended open time
Helps improve anti-sag and vertical stability
Useful in tile adhesive, putty, plaster, and EIFS mortar
Delayed solubility supports controlled dispersion
Practical for high-viscosity construction screening

Typical Applications of HPMC 200K

1.Tile adhesive and high-body dry-mix systems
Suitable for formulas that need strong water retention, open time, and vertical stability.

2.Wall putty, skim coat, and plaster
Useful where higher viscosity, better body, and stable application feel are required.

3.EIFS mortar and repair mortar
Appropriate for systems that need anti-sag support, consistent wet structure, and reliable workability.