If you cut the line so you can slightly see the rabbit, the paint won’t show from the other side.
Using a putty knife, cut into each corner and draw a line about 45-degrees along each side of the glass-glazing, and draw out at the ending corner work your way around the pane. Push in the top glazing evenly around the pane. The flat triangles work best (with the accompanying tool to insert them) the ones with the lip are intended more for picture framing and leave a larger surface to have to cover with glazing. Glazier’s points will further secure the glass in place (a 12 inch pane needs only 4). Use a putty knife to apply the back glaze in the rabbit, and gently push the window pane down evenly into the glazing until you can’t see the wood of the rabbit beneath the glass. Water-based glazing tends to be much softer and stickier (wear “vinyl” gloves) so harder to control, but sets up quickly and can be painted the next day. Oil-based is an easy to work with traditional favorite, but takes longer to skim over for painting. Glazing compounds are available in oil-based (Dap 33) and water-based (Aqua Glaze) options. Always dry-fit the glass, and put it aside in the same orientation that you fitted it.
#Window glazing putty lowes crack
When the wood around the glass expands the pressure will crack the pane if it is cut to fit. The pane of glass should be 1/8 inch smaller in both dimensions than the opening. Don’t rush it, use a flat work surface, and have sharp, accurate tools ready. Hold the cutter firmly and make a single cut with a smooth, uninterrupted motion, then grip both sides of the cut line with even pressure to snap it. All glass is hard to cut without good technique. I have been seen in more than one dumpster pulling out old sashes for the glass.Įveryone complains that old glass is too brittle and difficult to cut. Your local transfer station is a great resource, and most window repair shops will have some available.
#Window glazing putty lowes windows
If your windows are old enough to have nice wavy antique glass, find some more so your replacement doesn’t “glare” back as a later repair. This area must be cleaned down to bare wood and primed with a quality oil-based product (or sealed with boiled linseed oil if natural) before reglazing or the wood will draw the moisture out of the glazing and dry it out.
The grooves in the muntins and sash that the windowpane sits in is called a “rabbit” (if anyone knows why email me!). Feel along for them and pry them out as you go. The pane is held in place by small metal wedges called glazier’s points. If the glass is not broken, a careful hand working against the wood instead of the glass will avoid cracking the glass. The pane of glass and all old glazing putty must be removed first using a stiff putty knife or chisel. It is easiest to take the sash right out to work on, although this can be done in place. With the right hand tools and technique, you can get rid of poor glazing and buildup or a dangerous broken pane, and weather-tighten your window. Replacing a broken pane of glass and reglazing a window pane takes a little practice, but is basically an easy chore.
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