BOMCELL® MEC956(S) High Viscosity Methyl Hydroxyethyl Cellulose MHEC For Tile Adhesive, EIFS and Renders

BOMCELL® MEC956(S) is a methyl hydroxyethyl cellulose (MHEC) developed by Henan Botai Chemical for cement-based dry-mix mortars. It is designed to deliver excellent water retention, improved workability, and strong anti-sagging performance, ensuring superior consistency and adhesion in various construction applications such as tile adhesives, EIFS/ETICS, renders, and water-based paints.

With a viscosity of approximately 45,000 mPa·s, MEC956(S) provides balanced rheology control — achieving both smooth troweling and high bonding strength even under hot or dry weather conditions.

Key Benefits:

High Water Retention – Extends open time and enhances cement hydration.

Excellent Workability – Enables smooth troweling and consistent mixing.

Long Open Time – Ensures flexibility during installation, especially in warm climates.

Good Anti-Sagging Performance – Prevents tile slipping and material sagging on vertical surfaces.

High Wettability – Ensures easy dispersion and uniform blending in dry-mix systems.

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Product Advantages

  • Specially engineered for tile adhesives, EIFS, renders, and decorative coatings.
  • Provides stable viscosity and uniform water retention in both manual and machine-applied mortars.
  • Offers strong compatibility with RDP, calcium formate, retarders, and defoamers.
  • Maintains excellent performance consistency in different temperature and humidity conditions.
  • Supports low-sag, smooth-finish applications for professional construction use.

Technical Specification

Chemical Basis:Methyl Hydroxyethyl Cellulose (MHEC)
Appearance:White powder
Viscosity:approx 45000mPa.s
PH:5.0-8.5
Particle size(through 80mesh):Min.90%
Moisture content:max.6.0%
Bulk density:200-500g/
*2 % solution; on wet basis; Brookfield ,7#20rpm , 20 °C.
These figures are only intended as a guide and should not be used in preparing specifications

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Product Applications

Bomcell® MEC956(S) is suitable for:

Recommended Dosage:

0.3 – 0.6% by weight of total dry-mix materials.

Need custom formulations or comparative testing?

Contact BOTAI’s technical team for customized formulation support and performance consultation.

 Contact Botai R&D Team

Packaging & Delivery

  • Standard packaging: 25 kg net paper bags or on cIients’ requirement
  • Custom OEM packaging available upon request
  • Minimum Order Quantity (MOQ): 3 metric tons.
  • Typical lead time: 7–15 days after order confirmation
  • Trade terms: FOB / CIF / DDP under Incoterms® 2020

Storage and Shelf life

  • Store in a cool, dry, and well-ventilated place below 25°C.
  • Keep away from direct sunlight and moisture.
  • Shelf life: 24 months from production date when stored in unopened original packaging.

Safety & Compliance

BOMCELL® MEC956(S) is safe, non-toxic, and environmentally friendly.
It complies with ISO 9001, EU REACH, and HALAL quality standards.
Refer to the MSDS for detailed safety and handling instructions.

About Henan Botai Chemical Building Materials Co., Ltd.

Established in 2004, Botai Chemical is a certified manufacturer specializing in Redispersible Polymer Powder, Cellulose Ethers (HPMC/HEMC/HEC), Calcium Formate, and Superplasticizers (SMF/PCE). Our products are widely used in dry-mix mortars, paints, oil drilling, feed, and detergent applications.

As a member of China’s Building Materials and Ceramic Industry Associations, Botai is actively involved in R&D and innovation for tile adhesive and repair materials. We operate two advanced R&D centers and hold over 25 patents and 20 registered trademarks.

With ISO 9001, EU REACH, HALAL, and FAMI-QS certifications, Botai ensures consistent quality and sustainable manufacturing. Our annual capacity exceeds 100,000 tons across VINNATE®, VAMCELL®, BOMCELL®, THYLOCELL®, FORCA®, and DEMACSA® product lines.

Our Certificate

Customer Case

Why Choose Us?

Factory established in 2004, backed by 20+ years of manufacturing expertise and over 60,000 m² of modern production facilities

Trusted by customers in 100+ countries and regions, with stable export supply and responsive service

One of China’s leading manufacturers of construction chemical additives, with a total annual capacity exceeding 100,000 tons

Two advanced R&D centers with full in-house laboratories and patented formulation capabilities

Certified quality and production systems: ISO 9001, EU REACH, HALAL, FAMI-QS

25+ patented technologies and 20+ registered trademarks, including VINNATE®, VAMCELL®, BOMCELL®, THYLOCELL® and more

Dedicated QC management and global technical support teams ensuring fast response and reliable service

Strong supply stability with long-term raw material partnerships and automated production lines, ensuring consistent quality and on-time delivery

FAQ

What are the main applications of MEC956(S)?

It’s suitable for tile adhesives, EIFS, renders, and water-based paints to improve workability and water retention.

Does MEC956(S) help prevent sagging?

Yes, its optimized viscosity ensures excellent anti-sagging on vertical surfaces.

Can MEC956(S) be combined with RDP?

Absolutely. It works synergistically with VINNATE® RDP for improved adhesion and flexibility.

What’s the typical dosage?

0.3–0.6% by dry weight of total mortar, depending on formulation.

Is MEC956(S) safe for handling?

Yes. It’s non-toxic and environmentally safe; follow MSDS guidelines for use.

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