US Horizon has the best glazing supplies and industrial cleaning supplies for shower glass installation, like glass setting blocks, Loctite adhesive, stainless steel cleaner and screw anchors. A glazier simply places the set up blocks in the frameless shower doors u channel or H bar. US Horizon foam tape makes an ideal weatherstrip for bottom of door or mirror mounting tape; select a very high bond tape for extra strong and long-lasting adhesion for shower door seals, mitered glass joints and more.