Cabots Bleaching Oil & Silver Gray Weathering Stain 4oz Sample Can . This product has been a Cabot original for over 100 years. It is specially formulated to beautify and protect wood while accelerating the natural weathering process. Within 6-12 months after application, the combination of sunlight and moisture will turn wood to a beautiful, natural silver gray. To simulate this seaside look immediately, use Cabot Weathering Stain, listed below. This product is pigmented with a subtle, silver-gray tone to give wood immediate color. The Wooster 2" bristle brush is perfect for sample product testing.