Product Advantages
- Optimized for EIFS, tile adhesives, joint mortars, and cement renders.
- Ensures excellent open time and trowelability for professional results.
- Provides good cohesion and anti-sag properties in vertical applications.
- Compatible with Portland cement, polymer powders (RDP), calcium formate, and retarders.
- Offers stable performance in both hand-applied and machine-spray mortar systems.
Technical Specification
| Chemical Basis: | Methyl Hydroxyethyl Cellulose (MHEC) |
| Appearance: | White powder |
| Viscosity: | approx 15000mPa.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® MEC165(S) is suitable for various construction formulations, including:
Tile Adhesives (C1 / C2 / C2E Grades) – Improves adhesion and reduces slip.
EIFS / ETICS Mortars – Enhances cohesion and water retention for lightweight systems.
Joint Fillers & Grouts – Increases flexibility and resistance to cracking.
Cement & Lime Renders – Provides smooth workability and high wet adhesion.
Water-Based Emulsions & Coatings – Offers rheology control and film stability.

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.
- Avoid direct sunlight and high humidity.
- Shelf life: 24 months from production date when stored in unopened original packaging.
Safety & Compliance
BOMCELL® MEC165(S) is non-toxic, non-flammable, and environmentally safe.
It complies with ISO 9001, EU REACH, and HALAL quality standards.
Refer to the MSDS for detailed safety and handling instructions.
Email:
[email protected]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
It is designed to improve sag resistance, workability, and adhesion in tile adhesives, EIFS, and renders.
It enhances open time, cohesion, and vertical stability while ensuring smooth workability.
Yes, it is fully compatible with VINNATE® RDP, improving flexibility and adhesion strength.
Typically 0.3–0.6% of total dry-mix weight, depending on formulation.
In a cool, dry, and ventilated environment below 25°C to maintain stability.