Hydroxy Propyl Methyl Cellulose Fine Powder for Construction Materials

‌Product Overview‌

Hydroxypropyl Methyl Cellulose (HPMC) Fine Powder represents the pinnacle of cellulose ether technology, engineered to redefine construction material performance. With a specialized molecular structure featuring 28-30% methoxy substitution and 7-12% hydroxypropyl substitution, this ultra-refined additive delivers unmatched water retention, workability enhancement, and interfacial adhesion in cementitious systems. Certified for global architectural applications, HPMC Fine Powder meets the rigorous demands of modern construction while adhering to ISO 9001 quality standards and GreenGuard sustainability certifications.

‌Technical Specifications‌

‌Physicochemical Properties‌

‌Functional Performance‌

• ‌Water Retention‌: ≥98% at 23°C/50% RH (EN 13480)
• ‌Open Time Extension‌: 45-60 minutes in tile adhesives
• ‌Adhesion Strength‌: ≥2.0 MPa (EN 12004)
• ‌Slump Retention‌: ≤5 mm loss over 90 minutes (ASTM C1437)

‌Manufacturing Excellence‌

Produced through ‌Advanced Alkaline Etherification Technology‌:

1. ‌Base Material‌: Sustainably sourced α-cellulose (≥98.5% purity)
2. ‌Reaction Control‌:
   • Continuous gas-phase methylation at 60-80°C
   • Hydroxypropylation under 10-15 bar pressure
3. ‌Purification Process‌:
   • Multi-stage solvent extraction (ethanol/acetone)
   • Ultrafiltration to remove DS <1.8 byproducts
4. ‌Drying Innovation‌:
   • Spray-dried granules with <1% oversized particles
   • Anti-caking agent-free stabilization

‌Quality Assurance‌:

• ±3% viscosity batch consistency
• <0.1% heavy metal content (Pb, Cd, Hg)
• Full traceability from pulp source to packaging

‌Multi-Application Performance‌

‌1. Tile Adhesive Systems‌

• ‌Extended Open Time‌: Maintains 2.5 N/mm² adhesion after 40-minute exposure
• ‌Non-Sag Properties‌: Enables vertical application up to 8 mm thickness
• ‌Substrate Compatibility‌:
  • Concrete: 100% adhesion retention after 28-day cure
  • PVC: 0.8 MPa bond strength without primers

‌2. Dry-Mix Mortars‌

• ‌Workability Optimization‌:
  • 35-40% reduction in mixing water demand
  • 50% faster tool cleanup vs. conventional HPMC
• ‌Crack Prevention‌:
  • 0.02 mm/m shrinkage control (EN 12617-4)
  • 90% reduction in plastic settlement

‌3. Cement-Based Plasters‌

• ‌Application Smoothness‌: Achieves N4-N5 surface finish (EN 13914)
• ‌Moisture Regulation‌:
  • 7-day controlled hydration cycle
  • Prevents efflorescence under 85% humidity

‌4. Self-Leveling Compounds‌

• ‌Rheological Precision‌:
  • 120-150 mm flow diameter (EN 13813)
  • <10 sec T500 flow time for rapid deployment
• ‌Early Strength Development‌:
  • 15 MPa compressive strength at 24 hours
  • 80% final strength achieved in 3 days

‌5. EIFS (Exterior Insulation Systems)‌

• ‌Impact Resistance‌: Passes 25 J/cm² hail test (ETAG 004)
• ‌Waterproofing‌: 0.02 kg/(m²·h0.5) vapor permeability
• ‌Freeze-Thaw Stability‌: 50 cycles without delamination

‌Competitive Advantages‌

‌Performance Leadership‌

• 40% higher water retention vs. standard HPMC grades
• 60% faster dissolution in cold water (≤15°C)
• 0.5% dosage achieves 98% sag resistance

‌Economic Value‌

• Reduces material waste through precise slump control
• Eliminates need for separate retarders/plasticizers
• Enables 20% cement reduction in lean mixes

‌Sustainability Edge‌

• 100% biodegradable within 180 days (OECD 301B)
• 35% lower carbon footprint vs. petrochemical additives
• Zero VOCs (EN 16516 compliance)

‌Quality Certifications‌

• ‌Construction Standards‌:
  • EN 934-3 (Admixtures for Masonry Mortar)
  • ASTM C387 (Mortar & Grout Compatibility)
  • GB/T 29594 (Chinese Construction Additive Standard)
• ‌Safety Compliance‌:
  • REACH Annex XVII (EU Chemical Safety)
  • FDA 21 CFR 175.300 (Indirect Food Contact)
  • RoHS 3 (2015/863/EU)

‌Smart Packaging Solutions‌

• ‌Standard Options‌:
  • 25 kg multi-layer kraft paper bags (0.03% moisture ingress)
  • 500 kg FIBCs with UV-resistant liners
• ‌Advanced Features‌:
  • RFID-tracked batches for inventory management
  • Humidity indicator cards in premium packaging
  • Pre-measured water-soluble sachets for batch mixing

‌Technical Support Services‌

• ‌Formulation Optimization‌: Lab-scale trials with rheology profiling
• ‌Troubleshooting‌: On-site application diagnostics
• ‌Regulatory Guidance‌: Global compliance documentation packages
• ‌Custom Development‌:
  • Temperature-specific viscosity grades (-10°C to 50°C)
  • Accelerated setting variants for rapid repairs

Hydroxypropyl Methyl Cellulose Fine Powder stands as the cornerstone of modern construction chemistry, combining millennia of cellulose science with cutting-edge modification technology. Our global network of material scientists provides 24/7 application support, ensuring optimal performance in your specific climatic and compositional conditions.

TDD-Global.com is a professional China chemical B2B marketplace operated by IBI Company, dedicated to promoting global communication, business negotiation, and market expansion in the chemical industry. With a strong network of China chemical product suppliers and international buyers, TDD-Global creates a dynamic and efficient platform for sourcing, trading, and cooperation.

Under the brand name TUDUODUO, TDD-Global has built a trusted reputation among suppliers and buyers in sectors such as fine chemicals, raw materials, industrial additives, and advanced chemical solutions. We offer a wide range of services including product listing, online promotion, supply chain solutions, and international marketing support.

Our platform connects hundreds of verified China chemical suppliers with buyers worldwide, fostering transparent transactions, better business opportunities, and high-value partnerships. Whether you are looking for bulk commodities, specialty chemicals, or customized procurement services, TDD-Global is your go-to platform.

Driven by the innovative spirit of IBI Company, we are committed to building a smarter, faster, and more reliable global chemical trade ecosystem.

If you are interested in cooperation, strategic partnerships, or customized chemical sourcing, please feel free to contact us. Let's shape the future of the chemical industry together!