Concentrated, phthalate-free urethane colour pigments that resist ultraviolet light. By adding a small amount of UVO™ to a Smooth‑On epoxy, urethane rubber, plastic or foam product, these pigment dispersions will yield opaque castings vs. SO‑Strong™ colour tints that can yield translucent urethane castings.

A very small amount will colour a proportionally large amount of liquid epoxy or urethane.

Add 10 drops By Volume of UVO® per 3 oz (88 ml) of mixed material.  The more you add in proportion to the volume of liquid material, the more dramatic the colour effect, up to 3% of total system weight.