Short Business Description Slide-Lok of the Eastern Shore is a certified dealer and installer for Slide-Lok, the oldest and longest continuing garage interior brand in North America. In addition, owner Dave is a certified dealer and installer of General Polymers (Sherwin Williams) and Tremco. He is a member of the Concrete Polishing Association of America and attends the World of Concrete Convention in Las Vegas every year. Dave has also earned the HTC Concrete Prep & Polishing certificate.