A Deck Protector is a product used to protect wood decks from the elements. It typically consists of a SEALER and a STAIN. The SEALER is a liquid or paste that is applied to the wood to create a barrier against water, dirt, and other environmental factors. The STAIN is a colored pigment that is applied to the wood to enhance its appearance and provide additional protection. Both the SEALER and the STAIN are necessary components of a Deck Protector.