Cellulose esters
Eastman cellulose esters can reduce the cost of a metal flake coating by ensuring an even distribution of metallic flake and consistent alignment. This may allow the formulator to use less of this expensive paint ingredient. In addition, the flow and leveling properties of Eastman cellulose esters provide a superior surface smoothness.
Key attributes:
- Superior surface finish
- Faster dry to touch
- Improved pigment density
- Enhanced color match and harmony across multiple substrates
- Enhanced metal flake orientation to deliver brighter metallic finishes
Adhesion promoters
Through the use of Eastman adhesion promoters, difficult-to-paint surfaces such as polyolefins can now be coated with paints routinely used in the industry. This allows designers to use standard paints on a variety of substrates, ensuring color matching.
Solvents
Plastic articles are coated to protect the surface from degradation, to achieve special appearance effects, and to minimize electromagnetic interference. Since plastics have widely varying surface properties, proper choice of solvents is critical to achieving good paint adhesion and satisfying end-use requirements.
Eastman solvents, especially glycol ethers, are very useful in coating plastic substrates because of their good activity for many coating resins, low surface tension, and minimal attack on the surfaces of sensitive plastics such as polystyrene and polycarbonate.
Polyvinyl resins
Butvar® polyvinyl resins deliver better strength and flexibility for ceramic tape casting and on printed circuits. Butvar products have solubility in a wide range of solvents and uniform adhesion to conductive metals.