The coverage per gallon will be less on decorative block because of the irregular surface area. All block must conform to industry standard ASTM-C90. A minimum of two flood coats are recommended on restoration projects, where old brick and mortar areas need binding, sealing, and waterproofed. Solvent sealers, because of their bond breaking abilities, will cause further deterioration of the old brick and mortar areas and should not be used. Before painting, SKHS should be used on wood that has been stripped with an alkaline stripper to block any residual alkalinity.
Residual alkalinity can cause paint to peel.
Before applying SKHS follow stripper manufactures neutralization instructions. The surface pH should be 7-9 before painting. When tinting, use latex stain or paint color charts for the desired color. Tint with universal colorants. It is recommended that a quart or less of the product be mixed and applied to a test area.