Don’t sand that teak unless it is badly grooved or grainy. And, don’t pressure wash it either!! Our teak cleaners can get that grey off and the teak clean and back to its original colour without harsh sanding. Simply wet the teak, brush on the Part A cleaner, let it sit for 5-10 minutes without letting it dry, then rinse it off. Follow up with the Part B brightener and again let it sit for 5-10 minutes without letting it dry, then give it a good rinse off, no pressure washers please and let it dry for 48 hours before sealing the teak with your choice of SEMCO sealer for a lasting, natural looking, stain resistant finish.