UVO™ Colourants are concentrated, phthalate-free polyurethane colour pigments that resist ultraviolet light. By adding a small amount of UVO™ to a Smooth-On epoxy, polyurethane rubber, plastic or foam product, these pigment dispersions will yield opaque castings (vs. SO-Strong™ colour tints that can yield translucent polyurethane castings). For glowing fluorescent colour effects, use Ignite™ colourants.
UVO™ colourants are highly concentrated, offer excellent dispersion and consistent colour. A very small amount will colour a proportionally large amount of liquid epoxy or polyurethane. The more you add in proportion to the volume of liquid material, the more dramatic the colour effect. Recommended loading range is .01% to 3% of total system weight. Do not overload the liquid system or cure inhibition / oozing may occur.
User determines amount to add: If this is your first time adding colour tint or pigment to an epoxy or polyurethane system, you may want to test the colour effect by adding a few drops to a small amount of material and observe the outcome. It may take a few test castings to attain the desired colour outcome. Important: Results may vary depending on UV resistance of epoxy or polyurethane product.
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