Can be used with SMOOTH-CAST™ 320 and SMOOTH-CAST™ 325 polyurethane resins.

SO-Strong™ liquid urethane colourants can be used to create a variety of colour effects for a wide range of material applications.

SO-Strong™ 9-Pack Sampler includes: BLUE, BLACK, BROWN, LIGHT FLESH, GREEN, PURPLE, RED, WHITE, YELLOW.

Features

SO-Strong™ colorants are highly concentrated, offer excellent dispersion and consistent colour. A very small amount will colour a proportionally large amount of liquid urethane material. The more you add in proportion to the volume of liquid urethane, the more dramatic the color effect. Recommended loading range is .01% to 3% of total system weight. Do not overload the liquid urethane system or cure inhibition / oozing may occur.

User determines amount to add; If this is your first time adding colour tint or pigment to a urethane system, you may want to test the colour effect by adding a few drops to a small amount of urethane material and observe the outcome. It may take a few test castings to attain the desired colour outcome.

Instructions

To get you started, we offer the following colourant loading levels. Results may vary.

By Weight Using A Gram Scale: Add SO-Strong™colorant at a ratio of between 0.01% - 3% of the total weight (Parts A + B mixed) of the material being cast. Adding more than 3% by weight may cause cure inhibition.

By Volume Measured In Drops: Add 10 drops of SO Strong™ per 3 oz (88 ml) of mixed urethane material. If using a translucent material (like SMOOTH-CAST™ 325) you can use 1 drop to maintain translucency of the material.

Directions For Use: Store and use at 73°F / 23°C. Wear vinyl gloves to prevent skin contact. After dispensing the required amount of urethane material Parts A and B into measuring containers, add colourant to Part B and mix thoroughly. Combine Parts A and B into a mixing container and mix as directed by the urethane product technical bulletin.

Blending Colors: Combine different colors on a palette to create a custom color before adding to material as directed above.

The Pantone Colour Matching System is most commonly used in the printing industry to communicate colour. As it relates to Smooth-On color tints and pigments, the represented colour is an approximation and people’s interpretation of these colours may vary. The user will determine suitability of a color or combination of colours for the rubber, resin, foam or other product used specifically for their application. Due to the variability in products that are being coloured, application, colour concentration and other factors, Smooth-On makes no warranty with regards to the colour.