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Tinting strength and hiding power of the pure types are double those of lithopone types and recommended for coloring film and sheet when minimum pigment content and maximum opacity are needed.
Liquid and paste pigment dispersions for coloring PVC plastisols, urethanes, epoxies, calendered PVC film, and other polymers.
The coloring has a lot to do with how the wood is ground," says Brian Shea, whose company makes mulch colorants as well as the Mulch Color Jet application system.
Adds Frahm, "When it comes to coloring the mulch with our machines, the main thing on size is that if you have a lot of fine material, almost sawdust material, it takes more colorant per yard and it sucks up the paint.
Dry color is also the lowest-cost approach to coloring, and it adds far less inventory burden than precolor.
Geode line of complex inorganic pigments (heat-stable, light-stable, weatherable, and chemically resistant) is suitable for coloring most thermoplastics and thermosets, and recommended for engineering resins and rigid PVC.
Based on company's studies, dyes are also suitable for coloring the nonpolar plastics (PE and PP) in the presence of specialized carriers.
At the concentrations usually used for coloring (1-2%), carbon black also provides significant uv protection.
Paste and liquid dispersions of inorganic and organic pigments are supplied for coloring polyester, urethane, phenolic, epoxy, acrylic, and PVC.