Bermocoll CCA 612 cellulose ether

Bermocoll

BERMOCOLL CCA 612 is a high modified nonionic, water soluble cellulose ether. It improves the consistency and the water retention of gypsum and cement based plasters.

 

Specifications

BERMOCOLL CCA 612 is a modified high viscosity grade of ethyl hydroxyethyl cellulose.

 

Physical data

Appearance: whitish powder

Particle size: 98 % < 300 μm

Water content: max 4 %

 

Characteristics of aqueous solutions

pH (1 % solution): neutral

Surface activity: weak

Viscosity at 20°C

(Brookfield LV)

1 % solution: 5,500 - 7,500 mPa.s

 

Bermocoll CCA 612

BERMOCOLL CCA 612 is used as an admixture in gypsum and cement based plasters for

improvement of workability, consistency and water retention.

 

BERMOCOLL CCA 612 prolongs the working time and effectively counteracts the sagging tendency of the plaster.

BERMOCOLL CCA 612 should be admixed to the plaster in dry form before the water is added.

Normal dosage is 0.15 - 0.30 % calculated on the dry mix. Due to its small particle size BERMOCOLL CCA 612 will dissolve rapidly after addition of water

to the dry mix.

 

Packaging and Storage

BERMOCOLL CCA 612 is packed in multiply paper bags with an inner polyethylene bag. Net weight 20 kg (approx 44 lbs). We recommend emptying the bags from the bottom. The empty bags can be recycled or burned. In unopened bags, BERMOCOLL CCA 612 can be stored for several years. In opened bags, the moisture content of BERMOCOLL CCA 612 will be influenced by the air humidity.

 

At the temperatures above 250°C (480°F), charring of BERMOCOLL CCA 612 will occur. At high temperatures and in contact with an open flame, BERMOCOLL CCA 612 will burn slowly with the characteristics of cellulose.