First some definitions are appropriate. At Perma-Chink Systems, we are careful about our use of terms. They are applied to bare wood for the control or prevention of fungus or insects. Shell-Guard and Guardian are our most popular preservatives. These are a one-time treatment in wood that is properly protected.
Stains are wood finishes that protect the wood from weathering and also stabilize color.
Stains and finishes seal the wood surface to prevent water penetration and add color to stabilize long-term appearance. Good quality stains highlight the wood grain and character to provide long lasting beauty. You use sealants to prevent leaks in your walls. Log home designs employ many kinds of sealing systems, including gaskets, chinking, caulking and check sealers. Back to top 8.