The SS Rainbow Stain System is a two-part system comprised of SS Rainbow Pigment and SS Rainbow Base. Add the concentrated pigment to the clear base. DO NOT THIN WITH WATER. The SS Rainbow System is used at full strength. Stir or shake the two-part solution thoroughly before AND during use to keep the pigment suspended. Apply SS Rainbow Stain with a roller, brush, high-volume/ low-pressure (HVLP) sprayer, an airless sprayer (.17 to .21 tip), or lawn and garden sprayer. Stain may also be applied with a spray bottle for smaller areas. Do not apply in temperatures lower than 45 F or higher than 90 F. Protect with two coats of quality SS Sealer.