Alpha Particles. Alpha particles are a type of radiation that do not travel very far, do not pass through anything very thick, and can generally be absorbed or stopped by an inch or less (1-2 centimeters) of air or a thin piece of tissue.
People stain or paint their decks in order to protect and preserve the wood. Outdoor decks take a lot of abuse from weather and the natural elements and require a high quality paint or stain to protect the wood. Decks require regular maintenance and are usually painted or stained every three to four years.Staining a deck emphasizes the natural grain of the wood.utdoor decks take a lot of abuse from weather and the natural elements and require a high quality paint or stain to protect the wood. Decks require regular maintenance and are usually painted or stained every three to four years. Staining a deck emphasizes the natural grain of the wood.
Simple to use. Knotwood deck finish is applied with only one applicationâ¦It's that easy! The Brazilian Rosewood Oil finish penetrates composite wood, and provides a wonderful way to achieve a great looking deck. Knotwood deck finish resists most stains, a problem for all types of composite decking.Simply wipe up spills with a damp cloth. It's the perfect way to protect and beautify composite wood... the Penofin way. Available in three Knotwood finish tones: Knot Cedar, Knot Mahogany, and Knot Redwood.For the beautiful, easy-to-care-for composite deck, Penofin's Knotwood Oil Finish is the answer decking professionals and do-it-yourselfers love.vailable in three Knotwood finish tones: Knot Cedar, Knot Mahogany, and Knot Redwood. For the beautiful, easy-to-care-for composite deck, Penofin's Knotwood Oil Finish is the answer decking professionals and do-it-yourselfers love.