Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- CASE Ingredients Functions
- Technologies
Features & Benefits
- CASE Ingredients Features
- Product Highlights
BERMOCOLL EHM Extra is a specialty hydrophobically modified methyl ethyl hydroxyethyl cellulose.
Applications & Uses
- Applications
- Application Method
- Coating Type
- Use Level
- 0.1 - 0.8 %
- Applications
- Bermocoll® EHM Extra can be used as a thickener in all types of latex paints, both in interior and exterior formulations. Bermocoll® EHM Extra improves high shear viscosity, roller spatter, flow and leveling.
- Bermocoll® EHM Extra offers enhanced color and heat stability, good color acceptance with minimal flocculation even when the most problematic colorants are used. Normal dosage is 0.1 to 0.8%, calculated on the total paint weight.
- In order to facilitate dispersion in water, Bermocoll® EHM Extra has been treated to give a pH-dependent dissolving.It should be added to neutral or slightly acid water.
- To speed up the dissolving process, pH should be increased to above 8 by using alkaline ingredients such as ammonia or alkaline pigment dispersants.If adjustment of the final paint viscosity is necessary, a highly concentrated slurry either in water or in an organic solvent should be used.
- It is not recommended to add the product as a dry powder after pigment grinding, due to the risk of lump formation at alkaline conditions.
Properties
- Appearance
- Opaque, Off white powder
- Physical Properties
- Characteristics
- Specifications
| Value | Units | Test Method / Conditions | |
| Viscosity (at 20 °C, 1% solution) | 250 - 450 | mPa.s | Brookfield LV |
| Value | Units | Test Method / Conditions | |
| Surface Activity | Weak | — | — |
| Value | Units | Test Method / Conditions | |
| Particle Size (≤ 500 μm) | 98 | % | — |
| pH (in 1% solution) | 5 - 7 | — | — |
| Salt Content | max. 6 | % | — |
| Water Content | max. 4 | % | — |
Regulatory & Compliance
- Certifications & Compliance
Technical Details & Test Data
- Test Data
Bermocoll® EHM is a non-ionic associative cellulose-based polymer with enhanced enzymatic resistance. We developed it in order to improve the rheological properties in latex paints. Bermocoll® EHM combines the performance of low viscosity cellulose with high thickening efficiency.
Below, from left to right, spatter from
Paint rheology, higher ICI viscosity
With equal dosage and Stormer viscosity (KU), Bermocoll EHM Extra achieves higher ICI viscosity than competitor products - demonstrating the robust and reproducible thickening character of our product. The higher ICI viscosity contributes to an improved film build and thus better coverage.
Hiding Power
Safety & Health
- Safety Information
At high temperatures and in contact with an open flame, Bermocoll® EHM Extra will burn slowly with the characteristics of cellulose
Packaging & Availability
- Country Availability
- Packaging Type
- Regional Availability
- Packaging Information
Bermocoll® EHM Extra is packed in polyethylene bags. Net weight 20 kg bags are available. We recommend emptying the bags from the bottom. The empty bags can be recycled or burned.
Storage & Handling
- Storage Conditions
- Unopened bags of Bermocoll® EHM Extra can be stored for several years in a cool, dry place. In opened bags, the moisture content of Bermocoll® EHM Extra will be influenced by the air humidity. At temperatures above 250 °C (480 °F), charring of Bermocoll® EHM Extra will occur.
- Like many industrial processed powdery materials, cellulose ether dusts are combustible and can cause dust explosions. Dust formation must be avoided or kept to a minimum. Care should be taken to prevent ignition from heat, spark, open flames or hot surface.