Minor Scratch on Windshiled
07-26-16, 10:51 AM
#1
Rookie
Thread Starter
Join Date: Oct 2009
Location: NY
Posts: 65
Likes: 0
Received 0 Likes
on
0 Posts
Minor Scratch on Windshiled
Hi all. I have minor scratches on my windshield, barely can see them but since I know its there I can... Any advise on how get rid off scratches from windshield?
Thank you
Thank you
07-26-16, 12:20 PM
#3
Lead Lap
While working an assembly line at an auto glass factory (see my recent posts), I watch the repair line where they took out scratches using a huge cotton wheel wherein the operator "chalked" the circumference with a stick (reminiscent of a kid's 1" driveway chalk) of jeweler's rouge.
The wheel - looking like a three-foot in diameter, three inches in width - rotated at about 1 revolutions-per-second - and the man held the blemished part against the abrasive compound until the glass was polished down below the scratch.
I used to be able to identify repaired windscreens and sidelights by the optical aberration when viewing through the glass at an extreme angle; but I haven't noticed any in many years. (I do, however, see some really crappy glass in cars - look through the windshield of cars next to you at a traffic light - you can tell good glass from crappy glass by the presence or absence of optical aberrations. When I've been able to ask the driver, many of the crappy glass examples were replacements.)
We have a five foot round glass tabletop that has a noticeable scratch likely from some beach sand or rough pottery that I plan to attempt a repair using a three inch cotton wheel on my die grinder with some Jewelers rouge or rubbing compound. Perfect optics will not be my primary concern.
The wheel - looking like a three-foot in diameter, three inches in width - rotated at about 1 revolutions-per-second - and the man held the blemished part against the abrasive compound until the glass was polished down below the scratch.
I used to be able to identify repaired windscreens and sidelights by the optical aberration when viewing through the glass at an extreme angle; but I haven't noticed any in many years. (I do, however, see some really crappy glass in cars - look through the windshield of cars next to you at a traffic light - you can tell good glass from crappy glass by the presence or absence of optical aberrations. When I've been able to ask the driver, many of the crappy glass examples were replacements.)
We have a five foot round glass tabletop that has a noticeable scratch likely from some beach sand or rough pottery that I plan to attempt a repair using a three inch cotton wheel on my die grinder with some Jewelers rouge or rubbing compound. Perfect optics will not be my primary concern.
07-27-16, 08:29 AM
#5
not for anything...auto glass is laminated...ie glass sandwiched inbetween two layers of flexible coating that holds the glass together when it breaks. so polishing scratches out...might be impossible without damaging the coating.
07-27-16, 07:07 PM
#6
Lead Lap
Laminated glass is making a comeback in side windows - like in the fronts-only of the current RX. Windscreens have been a three-piece laminate since rocks were soft; however most side and rear glass are not.
When windshields are assembled, the piece that holds the two pieces of glass together, in it's raw state, is translucent, plastic-rubbery in texture, and you can't clearly see through it. It looks milky-like.
During the curing and forming-to-shape process, the plastic becomes crystal clear; and it is this membrane that is relied upon to keep the glass in shape - and your head on one side - during a crash.
The front seat side windows of the RX are laminates and the laminate helps keep the side air curtain inside the car during side impact; and it has a secondary benefit of providing a measure of sound deadening. The outside of the RX front passenger side windows also have a rain-repellant coating.
The windows that do not have a three-piece construction (i.e., and e.g.: the second seat RX side windows) shatter and drop into rock salt-sized pieces by design.
https://cdrb-law.com/legal-articles/...fety-glass.pdf
When windshields are assembled, the piece that holds the two pieces of glass together, in it's raw state, is translucent, plastic-rubbery in texture, and you can't clearly see through it. It looks milky-like.
During the curing and forming-to-shape process, the plastic becomes crystal clear; and it is this membrane that is relied upon to keep the glass in shape - and your head on one side - during a crash.
The front seat side windows of the RX are laminates and the laminate helps keep the side air curtain inside the car during side impact; and it has a secondary benefit of providing a measure of sound deadening. The outside of the RX front passenger side windows also have a rain-repellant coating.
The windows that do not have a three-piece construction (i.e., and e.g.: the second seat RX side windows) shatter and drop into rock salt-sized pieces by design.
https://cdrb-law.com/legal-articles/...fety-glass.pdf
Last edited by NateJG; 07-27-16 at 07:15 PM. Reason: added link
07-29-16, 08:44 PM
#7
Laminated glass is making a comeback in side windows - like in the fronts-only of the current RX. Windscreens have been a three-piece laminate since rocks were soft; however most side and rear glass are not.
When windshields are assembled, the piece that holds the two pieces of glass together, in it's raw state, is translucent, plastic-rubbery in texture, and you can't clearly see through it. It looks milky-like.
During the curing and forming-to-shape process, the plastic becomes crystal clear; and it is this membrane that is relied upon to keep the glass in shape - and your head on one side - during a crash.
The front seat side windows of the RX are laminates and the laminate helps keep the side air curtain inside the car during side impact; and it has a secondary benefit of providing a measure of sound deadening. The outside of the RX front passenger side windows also have a rain-repellant coating.
The windows that do not have a three-piece construction (i.e., and e.g.: the second seat RX side windows) shatter and drop into rock salt-sized pieces by design.
https://cdrb-law.com/legal-articles/...fety-glass.pdf
When windshields are assembled, the piece that holds the two pieces of glass together, in it's raw state, is translucent, plastic-rubbery in texture, and you can't clearly see through it. It looks milky-like.
During the curing and forming-to-shape process, the plastic becomes crystal clear; and it is this membrane that is relied upon to keep the glass in shape - and your head on one side - during a crash.
The front seat side windows of the RX are laminates and the laminate helps keep the side air curtain inside the car during side impact; and it has a secondary benefit of providing a measure of sound deadening. The outside of the RX front passenger side windows also have a rain-repellant coating.
The windows that do not have a three-piece construction (i.e., and e.g.: the second seat RX side windows) shatter and drop into rock salt-sized pieces by design.
https://cdrb-law.com/legal-articles/...fety-glass.pdf
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
heyitzalex
CL of Southern California
5
09-09-09 11:25 AM