Remove all dirt, foreign matter, and loose glass from damaged areas, apply primer along windshield or window edges, and allow primer to dry. Install replacement glass in vehicles after old glass has been removed and all necessary preparations have been made. Allow all glass parts installed with urethane ample time to cure, taking temperature and humidity into account. Prime all scratches on pinchwelds with primer and allow primed scratches to dry. Obtain windshields or windows for specific automobile makes and models from stock and examine them for defects prior to installation. Check for and remove moisture or contamination in damaged areas and keep areas dry until repairs are complete. Apply a bead of urethane around the perimeter of each pinchweld and dress the remaining urethane on the pinchwelds so that it is of uniform level and thickness. Select appropriate tools, safety equipment, and parts, according to job requirements. Remove broken or damaged glass windshields or window glass from motor vehicles, using hand tools to remove screws from frames holding glass. Replace all moldings, clips, windshield wipers, or other parts that were removed prior to glass replacement or repair. Remove moldings, clips, windshield wipers, screws, bolts, and inside A-pillar moldings and lower headliners in preparation for installation or repair work. Install, repair, or replace safety glass and related materials, such as back glass heating elements, on vehicles or equipment. Install rubber channeling strips around edges of glass or frames to weatherproof windows or to prevent rattling. Hold cut or uneven edges of glass against automated abrasive belts to shape or smooth edges. Cut flat safety glass according to specified patterns or perform precision pattern making and glass cutting to custom fit replacement windows. Replace or adjust motorized or manual window-raising mechanisms. Install new foam dams on pinchwelds, if required.