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.
You will want to use a cleaner to aid in the prep of the wood as indicated in the link below. http://community.homedepot.com/t5/Exterior-Paint-Stain/Which-Deck-Prep-Do-You-Need/td-p/371. After the fence has completely dried then you can apply a stain. Stains come in four types: 1  Transparent - a clear wood protector. 2  Wood toned. 3  Semi-transparent - stain with a little bit of color that still allows you to see the wood grain.  Solid - looks like a paint, but acts like a stain - penetrating the wood pores.