ACRYLIC EMULSION – 3A
Introduction
Acrylic Emulsion – 3A is a fine particle size, acrylic copolymer emulsion. Its moderate film hardness allows binder plasticity to withstand high pigment loads. It also exhibits superior alkali water and weathering resistance.
Application
Acrylic Emulsion – 3A has been developed specifically as a binder for coatings where high binding power, adhesion, and film toughness are required. Coatings using Acrylic Emulsion – 3A as a binder exhibit low thickener demand and excellent wet-scrub resistance at high pigment volume concentration.
Technical Information
| TYPE | Acrylic styrene copolymer |
| Total Solids | 46% ±2% |
| pH Value | 7.5 – 9.0 |
| Viscosity | 65-80 poise (RION VT-04) |
| Particle Size | 0.09 – 0.12 microns |
| Specific gravity | Approx. 1.04 at 25 °C |
| Storage life | Maximum 6 months under sealed cover Drum from date of delivery |
| M.F.F.T | Approx. 20 °C |
Formulation Guidelines
PIGMENT
Acrylic Emulsion – 3A can be formulated to withstand high pigments and extender loads. It associates with clay so much so that one can use a lesser amount of clay to achieve similar performance characteristics.
FILM COALESCING AIDS
Coalescing aid is required for optimum film formulation under air-dry applications. The amount will depend on the formulation and drying conditions. Texanol at 5-10% by weight on total dry resin is recommended for adequate filming.
THICKENERS
Acrylic Emulsion – 3A is designed to have a low thickener demand. Although it may be used to increase the viscosity of a coating based on Acrylic Emulsion - 3A, it is important to note that the amount of thickeners required is lower compared to when the same thickener is used in conventional acrylic binders.
HIGH PVC PAINTS
Acrylic Emulsion – 3A can be formulated to give good wet scrub resistance at high pigment and extender loads using the attached starting formulation.