Dilute one part Star brite® Sail & Canvas Cleaner in four parts water. (For heavily soiled white materials use full strength.) Wet down surface to be treated. Apply with sponge or brush to a small section using scrubbing action. Wipe or rinse off cleaned area before solution dries. Continue applying in same manner until entire surface is cleaned. NOTE: Before using, test an inconspicuous area to be sure there is no adverse reaction. After sail, canvas or fabric is cleaned, apply Star brite® Waterproofing to make material water tight and resistant to future soiling.