How to Reglaze a Window Pane
- 1). Heat the existing glazing putty around the edges of the pane with a heat gun on its highest setting. This softens the putty slightly, making it easier to remove.
- 2). Scrape the putty from the corners of the pane with a sharp paint scraper or wood chisel. Do not scratch or apply pressure to the glass pane.
- 3). Tighten the points against the glass. Points are the small metal triangle fasteners that hold the glass in place. Set a flat head screwdriver on top of a point with its blade horizontal to the pane and the tip. Tap the screwdriver head with a small hammer to drive the point into the frame snugly. Take your time to prevent damage to the glass.
- 4). Cut the tip of the latex glazing compound tube to create a ¼-inch opening. Run a thin bead of the compound in the angle between the glass and the wood frame. Smooth the compound with a dampened finger. Allow this bead to set for at least an hour.
- 5). Widen the opening in the tube slightly for a thicker bead. Apply a bead of compound around the frame on top of the first application. Smooth the compound with a dampened finger to create a smooth curved line around the pane. Scrape excess compound from the glass with a razor blade scraper before it hardens.
- 6). Apply a bead of silicone caulk around the frame on the opposite side of the pane to complete the seal.
- 7). Repeat the glazing process with all of the panes within the window (unless they have been reglazed within the last few years) to maintain the seal on the entire window.
Source...