How to Remove Putty from a Window with a Cobra Speedheater
HTML-код
- Опубликовано: 5 окт 2024
- This is a fast and easy way to remove putty, glazing and glass in a vintage wood window. This process in perfect for any DIY or professional window restoration project. In this video you will learn the tools and techniques Old Home Rescue uses to save hundreds of old wood windows every single year. Make sure to get the window tool kit and Cobra Speedheater below!
Cobra Speedheater: eco-strip.com/...
Chisel with Roller: eco-strip.com/...
Putty Scraper: eco-strip.com/...
Boomerang Paint Scraper: eco-strip.com/...
Old Home Rescue is and Eco-Strip affiliate
🔨🏠🪟🚪🧱🔨🏠🪟🚪🧱
Thinking of restoring your historic building, museum or structure?
Call or email to learn more
📞 405.549.9880
📧 info@oldhomerescue.com
Interested in starting a preservation franchise?
🌎 @woodrotrepair or gopreservan.com/
🔨🏠🪟🚪🧱🔨🏠🪟🚪🧱
Support the podcast by visiting: oldhomerescue....
I have a Cobra Speedheater and I restore very old windows and for the most part I’ve had little success in using it to soften putty. My assumption is that once the oil has leached out of the putty it’s effectively turned back into chalk and it will never soften. Great paint removal tool otherwise.
Same here. Petrified putty is a pain in the rear to remove without breaking the glass. A heat gun will soften petrified putty if glass is already broken. I am trying to invent a rail system to use a trim router to remove the putty.
@@supercharged2414 Potentially silly question: If the putty is that stuck on, why do you need to remove it? Couldn't you add fresh putty around the areas where the old putty won't come off? (I'm watching videos to learn about this process for my own 1950's wood windows.)
@@redbloodedbutterfly The previous person who attempted to putty it did such a terrible job it wouldn't pass my quality of glazing. I want all my windows to look good as well as seal good. This house has 36 windows and 70 panes of glass with two not being double hung.
@@supercharged2414 Ok, that makes sense.
This is great! Thanks for posting.
Glad you enjoyed it!
$499 seem a bit expensive for a simple IR. Old glass is between 1.5+2mm thick, extremely fragile especially when any pressure is placed on it. If you're doing a large project it's very likely you will crack some of the old glass. Very difficult to remove all putty easily as often the putty beneath the glass remains hard. So be careful when removing the glass. Removing old is completely different to removing replacement glass which may have been replaced witches 3 to 4mm and is much less likely to crack. Old glass is expensive to replace so very sensitive work is required when you're trying to remove original glass. The IR process. There is also often nails or tack nails holding the glass in place beneath the putt. Sometimes if you hit the tack it will crack the window. Gentle and extreme precaution when removing the tack nail.
The Craftsman Blog now has a ceramic version that comes in around $200.
I have broken many windows trying to reclaim wavy panes. I've tried everything including heat, steam, knife, chisel, and oscillating tool. The only thing that is useful for removing strong and well set glazing (which is not just falling out on its own anyway) is the oscillating tool. Stay in the wood and yes, it's a painfully tedious process, but it's the only way you can have any assurance that you can release the window without breaking it.
We have a rolling chisel on our website now that is amazing for this!
Me too. I tried a 10 inch drywall knife to shield the glass and a heat gun set on low. Glass still breaks. An oscillating tool is probably the best but as you said it is tedious.
i just ordered a hand held infared heater on Amazon to try with the drywall knife to shield the glass and then use the oscillating tool to remove the putty. It should speed up the process.
@@supercharged2414 in some cases it worked to groove the wood with the oscillating tool just outside/short of the glass and then use a knife to pry the thin strip off. Wish I could see your project.
Does brushing drywall powder on the fresh glazing help it dry? Does paint still stick well?
$500 bucks?? You've got to be kidding!! That's absolutely ridiculous. Forget that!!
@thecraftsmanblog has a ceramic version that’s around $200 that works well for a DIY scenario.
I have reglazed over 300 windows with the house I live in having 252 panes of glass. I have broken at least 30 windows trying to remove the putty or glazing. . I tried a hair dryer and a drywall knife to shield the glass. They still break. I broke a piece of antique glass yesterday putting in a push point. They had a different tool a hundred years ago that shot the triangle push points in like the window you show. That probably would eliminate breakage if I had one. It is extremely frustrating seeing antique glass break. Be honest, how many pieces of glass have you broken using this method? The glass you are removing is obscure or privacy glass which shouldn't break as easily as thin wavy antique hand blown glass. I am trying to invent a rail system that would use a trim router to remove the glaze fast and safely.
The Cobra speed heater is way overpriced and the average homeowner would not spend the money. They could normally buy new glass for every window for under $500. This house being an exception having so any panes of glass.
What happens if the glass is embedded in putty inside the rebate? (I.e you can’t heat it.)
They never answered your tough question.
What do you mean by saying rebate? Do you mean dado or recess? Carefully use a razor blade or sharp utility knife to cut the paint and putty. Sometimes I use the back side or dull side of a utility knife to scrape the paint and putty out of the recess.
@@supercharged2414Yes the rabbet in American English. You can’t scrape it with anything if the glass is attached to it (I mean the putty behind the glass).
I all three sides putty is removed, the glass usually can be wiggled out of the dado slot or rabbet. Lift the glass a bit to clear the frame and wiggle it out of the bottom slot.
Could you rebuild the window like it was originally?
I have rebuilt a bunch. I had wood made that matches the old window profile, carefully used a pin punch to remove the nail at each corner and took the old window apart. Then I made a jig for my table saw to cut the dados. It can be done. You can still buy router bit sets that will cut the original profile on the wood.
How long do you leave the heater on the glazing to soften it?
Aisela Allie it really just depends... 10-30 seconds
Old Home Rescue - thank you!
heat enough to burn putty off the rebate,rabbet whichever, will scorch the wood,crack glass,placing aluminum foil on the glass will usually prevent breakage
if the wood is to be painted,scorch marks are hot harmful,also if the window is already cracked or broken,Otherwise,careful cleaning out with a semi dull 3/4 in chisel is the method,taking care not to hit the glass edge or the embedded points
There’s actually a rolling chisel on our store now that works really well too.
Why are you shouting?
Sorry, audio was difficult when we made this video.
😊😊😊 I had to turn off audio because of the shouty voice... Can you imagine living with someone who talks like that????
Re-record it with a microphone headset or overdub with a calm voice.