Tool to remove window glazing

If one area of glass gets hot it will expand more than the rest of the glass. This can cause the glass to crack or even explode. Some tools used to soften glazing are a heat gun, glazing iron or propane torch. Some heat guns have deflector plates that direct heat off the nozzle. This allows you to heat the glazing and minimize the heat against the glass. Besides a source of heat, you will need a good stiff putty knife and a sharp wood chisel, leather gloves and eye protection.

Do you have any experience with a propane torch? Set the flame low and heat the glazing evenly. Try to direct the flame directly against the glazing so contact with the glass is minimized. Heat the glazing several times on each rail and then rotate to the next rail.

Keep moving. Be patient and slowly heat the glazing all around the glass. Obviously this is not a quick solution, lots of time and patience and a small brush so as not to damage the finish on the door, but it left the wood in pristine condition for a job we had began to think near impossible. I discovered that using a heat gun that I use for stripping paint, along with a heat shield that I made with aluminum foil wrapped around a plastic paint edger, works very well and safely.

It requires only 5 to 15 seconds of heating a section to soften some rock hard glazing, and the putty knife lifted it off simply after that. What a relief! Peelaway 8 paint removal system softens 90 year old glazing putty in two or three days. Then just carefully scrape it away with a razor blade, mask the glass, sand the residue off the rebate and the frame is ready for repairs, undercoating and new putty with glass intact and in-situ retained by the original points.

This is the easiest way to do the job without the high risk of glass breakage from heat or mechanical impact methods. I dont have a picture of it, but there is a product called the Putty Chaser that works kind of like this you might find videos of.

Another commenter already asked this but there was no response. Will New puddy bond to old puddy if it is too hard to remove? I have just replaced windows and the putty has gone onto the glass how can I remove the excess putty from the glass.

You can clean the excess putty residue off with a razor blade and glass cleaner if it has already dried. If it is fresh putty within 24 hrs then cleaning with whiting is the best route. Hi Scott. However, somewhere along the way the window was recaulked and a bead of silicone was placed on the glass. Any ideas? You can buy silicone removal liquid from most diy shops which with a couple of applications works relatively well.

Hi Scott, I found removing old putty to be the most challenging part of re-glazing. Instead of completely re-glazing, would it work if I just patch the old putty?

To do this, I would only scrape off loose old putty but spare those putty that still adhere well to the window, and then put new Sarco putty over these old remaining putty. Will the new putty bond well to the old putty? We have over 20 huge 3 pane windows in our church to repaint, but whoever did it last painted over the glazing putty.

Sue the old putty can be removed without removing the glass with some careful chiseling. I have used the box steamer. Did a casement window with 6 panes.

The window did not fit when I re hung it. Thank you ahead of time. The sash is back to normal moisture content after about hours most times. I have a couple of questions. Have you tried this? Also, how long should you allow the wood to dry after applying steam? I live here in Central Florida and moisture is my sworn enemy as the hurricane bears down on us…. After 1 day the sash is dried out back to where it needs to be. Nice post Scott! I also like to use a bench chisel to remove old glazing putty- with one modification.

The bearing rides along the adjacent wood surface and allows me to precisely control my depth of cut. This helps prevent the chisel from slipping and gouging wood or cracking glass. Works like a charm on the windows in my storybook cottage.

I would love to try this — anything that makes this process a little less risky for wood and glass. Your email address will not be published. This site uses Akismet to reduce spam. Learn how your comment data is processed. Search for:. Scott Sidler. First Name John. Your email [email protected]. Can you show a picture of the router application for putty removal.