Better Homes and Gardens on MSN1mon
4 Best Caulk Colors for Hiding Grime, Dirt, and Mold
A dark brown or gray color will provide opaque coverage to mask dirt, grime, and mold, while a silicone caulk's waterproof ...
The casting material is cheap silicone caulking from a hardware store, and color can be added with a small amount of cheap acrylic paint. A few drops of glycerin added to the silicone thins it out ...