LP-921 improves mar resistance and slip in water-borne systems or solvent-borne systems containing polar solvents; provides water resistance in water-borne systems; also imparts leveling, wetting and gloss.
Features & benefits: Imparts slip and mar resistance
Composition: Ultra high molecular weight polydimethylsiloxane dispersion in paste form
Technical index:
|
Test |
Unit |
Result |
|
Nonvolatile content |
% |
77~82 |
|
Solvent |
|
Water |
|
Specific Gravity at 25°C (77°F) |
|
0.980 |
|
Flash Point, closed cup |
°C (°F) |
>101 (>214) |
|
Viscosity at 25°C (77°F) |
cs |
200,000-700,000 |
Usage:
LP-921 is effective at low concentrations.
The amount required depends on type of formulation, the solvent it contains, resin system and total system solids.
LP-921 is generally effective at concentrations ranging from 0.05 to 3.0 weight percent, based upon total formulation. This additive can be added during the grind, let down or be post-added. Characteristics may vary when used with different systems and formulations.
LP-921 is compatible with acrylic, alkyd, epoxy, nitrocellulose, polyesters, polyurethane and vinyl systems. Thorough preproduction testing is necessary to ensure expected performance.
Application:
LP-921 reduces coefficient of friction, provides antiblocking and improves mar resistance.
coating, painting and ink.