Hydroxypropyl Methylcellulose (HPMC) & Construction Additives

About Derek Chemical

Hebei Derek Chemical Limited is a leading manufacturer and exporter of high-quality cellulose ethers, redispersible polymer powders, and specialty chemical additives. With over 20 years of industry experience, we have built a strong reputation for innovation, reliability, and technical excellence.

Our product quality is consistently recognized as being at the forefront both domestically and internationally. We serve clients across construction, home care, textiles, and industrial manufacturing with precision-engineered solutions that enhance performance and sustainability.

Environmentally Responsible

Safety Guaranteed

ISO & Quality Certified

Global Distribution

Our Product Range

Engineered for performance, consistency, and compatibility across diverse industrial applications.

HPMC – Hydroxypropyl Methylcellulose

High-purity cellulose ether for cement mortar, tile adhesive, self-leveling, and coating applications. Excellent water retention and workability.

• Viscosity: 40,000–100,000 mPa·s
• Substitution: MS 1.8–2.0
• Applications: Dry mix, paints, detergents

RDP – Redispersible Polymer Powder

Vinyl acetate-based polymer powder enhancing adhesion, flexibility, and water resistance in tile adhesives, EIFS, and repair mortars.

• Film Formation: 0°C
• Residue: ≥98%
• Particle Size: 80% < 100μm

Starch Ether (HPS)

Modified starch ether used in gypsum plasters and self-leveling compounds to improve sag resistance and open time.

• High water retention
• Cold water soluble
• Synergy with HPMC

PP Fiber – Polypropylene Fiber

Micro-fibers for crack resistance in cementitious systems. Prevents plastic shrinkage and improves impact strength.

• Length: 6–19 mm
• Dosage: 0.6–1.2 kg/m³
• Non-corrosive, alkali resistant

HEC – Hydroxyethyl Cellulose

Water-soluble polymer used in paints, detergents, and oil drilling fluids. Provides thickening and stabilization.

• Viscosity: 1,000–100,000 mPa·s
• Excellent salt tolerance
• Non-ionic thickener

PVA – Polyvinyl Alcohol

Water-soluble resin for textile sizing, adhesives, and paper coating. Grades: PVA1788, PVA0588, and more.

• Degree of Hydrolysis: 88% or 99%
• Film strength & flexibility
• Biodegradable option available

Wood Cellulose Fiber

Natural fiber for thermal insulation boards, renders, and fiber-cement products. Enhances water retention and cohesion.

• Length: 0.5–2 mm
• High aspect ratio
• Renewable & sustainable

PAM – Polyacrylamide

Flocculant for wastewater treatment, mineral processing, and papermaking. Available in anionic, cationic, and non-ionic forms.

• Molecular Weight: 5–20 million
• High flocculation efficiency
• Low dosage required

Why Choose DerekChem?

We combine innovation, quality, and global service to deliver unmatched value.

R&D Driven

Advanced lab testing and formulation support for custom solutions.

Large-Scale Production

Annual capacity of 30,000+ tons ensures stable supply.

Global Reach

Exported to Europe, Middle East, Americas, and Asia.

Certified Quality

ISO 9001, MSDS, and full traceability documentation.

Latest News & Insights

Exhibition News

CHINACOAT 2025

Join us at CCDM 2025 in Moscow – October 29–31. Visit Booth B2-3 in Pavilion 2, Hall 7 to explore our latest HPMC, RDP, and Starch Ether innovations.

Event: October 29–31, 2025 | Venue: Crocus Expo, Moscow

Technical Guide

HPMC in Detergents

Discover how HPMC enhances viscosity, stability, and dispersion in liquid detergents. Overcome common challenges like slow dissolution and compatibility.

Published: December 4, 2025

Construction Tech

Tile Adhesive Grades C0, C1, C2

A clear guide to selecting the right tile adhesive based on performance requirements, substrate, and environmental conditions.

Published: December 1, 2025

Sustainability

Green Textiles with PVA1788 & PVA0588

How water-soluble PVA simplifies textile manufacturing, reduces waste, and supports eco-friendly production.

Published: November 26, 2025

Frequently Asked Questions

What is HPMC used for?

HPMC (Hydroxypropyl Methylcellulose) is widely used in construction (tile adhesives, plasters), paints, detergents, and pharmaceuticals as a thickener, water retention agent, and stabilizer.

Can RDP improve tile adhesive performance?

Yes. RDP enhances adhesion, flexibility, and water resistance in tile adhesives, especially under thermal stress or on difficult substrates.

Do you offer custom formulations?

Yes. Our R&D team supports custom viscosity, substitution levels, and blends for specific application needs.

What certifications do you have?

We are ISO 9001 certified and provide full documentation including MSDS, COA, and origin certificates.

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