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.
1 Oil-based paint is more commonly used on outdoor porches or decks, as itâs known for itâs water-resistant properties. It also works well on wood doors, trim and cabinetry, and other heavily-used wood surfaces.  Specialty Paints: chalkboard, whiteboard, magnetic, glazes, crackling, and other decorative paints.