Bermocoll CCM 825 cellulose ether

Bermocoll

BERMOCOLL CCM 825 is a light modified nonionic, water soluble cellulose ether, intended as a water retaining and consistency improving additive to cement and gypsum based mortars.

 

Specifications

BERMOCOLL CCM 825 is a modified high viscosity grade of methyl ethyl hydroxyethyl

cellulose.

 

Physical data

Appearance: whitish powder

Particle size: 98 % <450 μm

Water content: max 4 %

 

Characteristics of aqueous solutions

Surface activity: weak

Viscosity at 20°C

(Brookfield LV)

1 % solution: approx. 10,000 – 14,000 mPa.s

 

Applications

BERMOCOLL CCM 825 is used in cement and gypsum based mortars for improvement of

workability, consistency and water retention, leading to a prolongation of the open time.

BERMOCOLL CCM 825 effectively counteracts the sagging tendency of mortar.

BERMOCOLL CCM 825 should be admixed in dry form before the water is added. Normal dosage is 0.2 - 0.7 % depending on type of mortar. Due to its particle size BERMOCOLL CCM 825 will dissolve in a uniform speed after addition of water to the dry

mix.

 

Packaging and Storage

BERMOCOLL CCM 825 is packed in multi-ply paper bags with an inner polyethylene bag. Net

weight 20 kg (approx 44 lbs).The empty bags can be recycled or burned. In unopened bags,

BERMOCOLL CCM 825 can be stored for several years. In opened bags, the moisture content of BERMOCOLL CCM 825 will be influenced by the air humidity.