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Scratches

Guest FloridaGuy

By Guest FloridaGuy
in Window Tinting - General Discussion

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Guest FloridaGuy

Guest FloridaGuy

Posted
Posted

I own a glass company and have worked with the same film guy for years now. Recently I had his guys tint some tempered glass with a decrotive film. I think there were 30-40 pcs in total. After they left I was loading it on a truck and noticed a bunch of scratches on 1 pc. After taking a good look at the rest they were all scratched. I know for a fact the glass wasn't scrathed to begin with b/c I unloaded it when we got it. After talking with this guy he said he has never seen anything like that before, neither have I. You could tell it was scratched by them b/c it almost looked as though they were using a nicked blade. Swirls and long streaks, and lots of them.

I recently had somemore tempered from a different manufacturer and now I notice the same thing. Not as bad but scratches where there won't any before.

I watched them the second time and it seemed he did everything right. Cleaned the glass. Sprayed it down, and cleaned it wet with a razor blade(maybe 4"). Then squeegeed it off. Then sprayed it and applied the film.

My question is have you guys run into this before? I know I have never seen it and he claims he hasn't either. What to do?

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Guest vclimber

Guest vclimber

Posted
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I've seen it plenty of times.Tempered glass can scratch easily, some glass mfg's are more prone to it than others. Although the mfg's will never admit to it, the tempering leaves micro-burs that get knocked off when scraping with a blade, this can scratch the glass. Use a non-scratch scrub pad instead of a blade when prepping.

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VIP tint + glass

VIP tint + glass

Posted
Posted
I've seen it plenty of times.Tempered glass can scratch easily, some glass mfg's are more prone to it than others. Although the mfg's will never admit to it, the tempering leaves micro-burs that get knocked off when scraping with a blade, this can scratch the glass. Use a non-scratch scrub pad instead of a blade when prepping.

I agree

exactly what I posted on the other thread.

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blade

blade

Posted
Posted
I've seen it plenty of times.Tempered glass can scratch easily, some glass mfg's are more prone to it than others. Although the mfg's will never admit to it, the tempering leaves micro-burs that get knocked off when scraping with a blade, this can scratch the glass. Use a non-scratch scrub pad instead of a blade when prepping.

bingo....like I posted in the other thread. one side always seems rougher than the other. if you blade that rough side then you're gonna scratch the glass.

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micro-edge

micro-edge

Posted
Posted
bingo....like I posted in the other thread. one side always seems rougher than the other. if you blade that rough side then you're gonna scratch the glass.

:evilgrin I've noticed the rough side before too. You can actually feel it dragging when scraping it. Was your tinter using stainless steel blades?

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suntint

suntint

Posted
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Tempered glass will definitely scratch. It can do so even if you are using good blades. It can be a problem when installing decorative films on interior glass which is tempered (like conference room glass and office sidelites). It will not usually be an issue if the entire glass is treated with film as that covers up the appearance of the scratches. The problem is if you scrape areas of the glass which are then not covered by film. We are now careful to not scrape close to open areas of the glass that will not have film. If there is a pattern with a lot of open areas we will even avoid scraping completely. I'm more worried about scratches than I am about installing film over small amounts of crud on the glass.

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H.G.

H.G.

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:thumb

I don't know what every local code is but typically "kick height" requires tempered, I will test scrape (just barely scrape a small area) on every window within "kick height". it is almost subconcious but you know when you hear it. scriiitttttch. it only take s about an inch to find out, and if you have 20 windows in a row you might get 5 -/????? that are scratchable. scrubbie time .

I use a window washing pad , wrap scrubbies around it ( about 1 1/2) put a piece of trim board in between and stapled the scrubbies to the board , the staples and the board are always away from the glass.

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