BJB liquid type pigments are designed to rapidly disperse and readily stay suspended in the systems described above. Many materials are naturally dark and hard to color. Liquid pigments can often cause a negative effect on a material's shelf life or its workability if they are introduced to the wrong side of any two component material system. Stored materials may have a shelf life reduction due to pigmentation. Due to the dark nature of most rigid foam systems, pigmentation is generally limited to the darker colors.
Elastomers are generally easier to pigment and store.
White pigment will not maintain it's color in most systems. White and pastel shades should have a protective overcoat of SC-89 clear or white polyurethane coating. Request technical assistance to insure desired results. When systems are thinned, the addition of more pigment is generally necessary. Our most popular liquid release for use in parting rigid and flexible foams.