ReadySeal™ is an oil based, semi-transparent wood stain, wood sealer, and UV protector all rolled into one. It is a unique blend of resin, pigment, oil, and algaecide that penetrates deeply into the wood to protect and preserve it from the elements. ReadySeal™ can be used on all types of exterior wood. Exposed wood should be protected from the harsh effects of weather. Exposed wood will turn gray and decay if not protected with ReadySeal™, the only quality wood sealer. ReadySea™ is intended for exterior wood surfaces only. To properly maintain wood, a light cleaning and re-coat of ReadySeal™ are recommended every 2 to 3 years.