There are no issues when using this product with urethane rubbers, plastics and foams or tin-catalyzed silicones. However Ignite™ pigments will drastically thicken platinum silicone rubber.
The Ignite™ liquid fluorescent colorants are compatible with Smooth-On polyurethane rubbers, polyurethane plastics, polyurethane foams (rigid and flexible) and silicones. The fluorescent or "glow" effect is maximized under ultra-violet light or "black light." The most dramatic color effect is realized when an Ignite colorant is used with a clear or translucent polyurethane rubber (such as Clear Flex 50) or plastic (such as Smooth-Cast 325).
The Ignite™ 9 pack gives you the opportunity to experience each color.
What Makes Castings Made With Ignite™ Pigments Appear To Glow? When you add Ignite fluorescent color to a polyurethane material, more ultraviolet light from the cured material is visible to your eye vs. castings made with SO Strong™ colorants. The casting appears brighter in ambient light and appears to glow under ultraviolet light.
