VFI-994 Skylight Renewal can be applied at a rate of .75 gallons per 100 sq. ft. over the skylight surface with a medium nap roller or brush. Allow the Skylight Renewal to cure for a minimum 24 hours. After it is cured, apply a second coat at the identical application rate. Volatile Free, Inc. Skylight Renewal is for use on roofs that are strictly coated with SEALGUARD VFI-990 SILICONE