Tank Liners, Inc. (TLI) has been lining underground storage tanks (USTs) and aboveground storage tanks (ASTs) since 1959. TLI’s services include tank lining, coating inspection, secondary containment, floor coating, and other projects requiring coating or lining. The industries we serve include petroleum, chemical, pulp & paper, food, water, and high-tech. We are licensed and bonded to perform work in Alaska, Washington, Oregon, Montana, Nevada, Idaho and California.