hey guys, I will definitely be using a scratch waiver.However, I’d like to clean windows with as few scratches as possible. I’m learning this trade on my own and don’t have someone teaching me what to avoid or look for to avoid scratches. I am learning about fabrication debris on this forum. What if a window just has a ton of dirt on it. Are there specific procedures for different glass conditions? What should I look for when I first check out window conditions to give estimates? I really appreciate the advice.
- Glass always need to be wet
- Only move the blade in one direction . Never back an forth
- On resi. Always a new blade never rusty
- Try white pad or steel/bronze. Wool. First
- Yes scratch waiver on construction cleans
- Always charge $$$ if there is a lot of scraping to do
As far as different procedures for different glass conditions. Then only thing I can think of is if the glass is really dirty lot of debris you wiil have to agitate it with some type if pad or blade or strip washer if possable sometimes the glass just needs to be clean twice
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I am so glad u took the time to type all of this. Thanks!
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If using a blade, start taking note of how it sounds on the glass when removing debris. I think Alex posted a video of how fab debris sounds and Ive encountered it quite a few times and thankfully stopped on the 1st test swipe. Try to test in inconspicuous area. Thats a few tips. 
I used to always approach 1st time cleans or CCU’s blades blazin but Ive backed off quite a bit since encountering lots of bad quality glass.
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Haha sorry my page just opened to this thread when I was logged off so didnt see it was a yr old. How is it coming?
yes commercial tempered doors for sure…
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+1… or is it +100 don’t know why I thought I needed to keep testing.
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hmm never heard of it until now. So it’s an adhesive remover? or??
here’s a brief article i wrote awhile back on one method that can help you determine if glass is safe to scrape. it’s not the only thing to consider, but it’s part of an overall skillset that will help window cleaners avoid damaging defective glass.
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Another great option for this is…
Knock off the top goopy layer with a small 1 inch razor then
follow up w/ damp micro fiber cloth.
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Takes a little elbow grease but it works. Magic eraser (dry) is awesome too.
Microfibres are the most underrated tool in window cleaning.
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Comes off pretty easy, just a little pressure.
Learned it from Caleb 
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the key is to keep it fairly dry. just a tiny bit of moisture to dampen it, but not too much otherwise it won’t have the same cutting power.
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