It’s a one-step product. That means a single coat provides the superior waterproofing for which Thompson’s WaterSeal is known, along with a stain to transform the appearance of your deck. Choose from five popular colors: Acorn Brown, Harvest Gold, Maple Brown, Sequoia Red or Woodland Cedar. Then select your preferred level of opacity—transparent, semi-transparent, or solid. Stains with more pigment will last longer, but show less of the natural wood grain. Transparent stain is guaranteed for three years, semi-transparent stain is guaranteed for four years, and the solid stain is guaranteed for five years.