Product information
Product Data
Appearance White Powder Main chemical Vinyl Acetate Ethylene Copolymer
Technical Data
Total Solid Content 98 ~ 100%.
Protective Colloid Polyvinyl Alcohol Ash
Content 8 ~ 12% Bulk
Density 0.5 (g/ml) Average
Particle Size 90 (µm) 50%
Redispersion Viscosity 2,000 cps (25o C, 10 rpm)
pH Value 7.0 Tg (onset ,o C) 10 ~ 20o C
Packaging: 25 Kgs / bag paper
Application
Typical Applications
Trowelling compound DA-1120 is ideal for use in decorative rendering in combination with hydraulic binders such as cement or gypsum. The amount to be added will depend on the formulation and requirements on adhesion, flexibility and ranges from 1 - 5 % DA-1120 based on total weight. The thixotropic effect of DA-1120 is not so marked in gypsum plasters and gypsum plasters with carbonate fillers as in cementitious compounds. Gypsum based compounds The addition of DA-1120 to trowelling compounds and boards containing gypsum as binder increases flexural strength, impact resistance and adhesion. To improve water retention, cellulose ether should be added.
Usage:
For the production of powdered products such as dry mortars, tile adhesives, troweling compound. DA-1120 redispersible powder is mixed with the dry, finely divided additives in suitable mixers. Pressure or excessive shear in the mixer and the transferring line should be avoided, since this will raise the temperature, leading toagglomeration of the thermoplastic resin particles. After sufficient water has been added, mortars or trowelling compounds can be mixed by hand or machine. Since mixing by hand only generates low shear forces, it is best to allow the mixture to mature by leaving it to stand for 5 minutes, and then to stir it again.
