How To Create Your Own Cast Live Rock Using Smooth Cast™ 321
Step 4: Painting With Smooth‑Cast 325 & So‑Strong
To custom color the surface of the cured cast live rock, Smooth-Cast 325 COLORMATCH resin and SO-Strong urethane pigments will be used to make a paint that will adhere permanently to the live rock casting.
Dispense part A of Smooth-Cast 325. Dispense an equal part of B. Add a few drops of SO-Strong purple to part B. Pre-mix the color tint into the part B. Pour part A into the colored part B and mix thoroughly. Smooth-Cast 325 has a pot life of approximately 2.5 minutes.
Use a brush to stipple the color tinted resin paint onto the rock surface. Additional batches of colored resin are layered over the casting. The rock is allowed to cure for 10 minutes at room temperature (73°F/23°C).
