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How to polish scratches out of glass
smart51 - 7/1/10 at 12:47 PM

I don't know how but my wife has managed to scratch the side window of her car when scraping frost off it. The scratches can be seen and felt with a finger nail. Is there a way to polish out these scratches or at least make them less noticeable?

ReMan - 7/1/10 at 12:56 PM

Cant help with the solution, but most likely cause is diamond rings....

Ben_Copeland - 7/1/10 at 12:58 PM

or titanium rings!

This question seems to get asked every couple of months.

Might be some answers if you do a search

skinned knuckles - 7/1/10 at 01:21 PM

it can be done but it takes forever. last year some ar$e stuck a notice to my wifes car window with what must have been superglue. in an attempt to clean/scrape off the residue with a combination of chisles and emery cloth she managed to make a right hash of it!

I started off with ultra fine wet and dry to cut the class back to the level of the scratches and then slowly, using a rotory polising attachment on my drill and various cutting polishes (including T_Cut, autosol chrome polish and ending up with brasso). turnrd out fine but took about 5 hours all in all.

bassett - 7/1/10 at 01:35 PM

Last time i was in machine mart i saw a glass polishing kit, came with polish and pads that fit to a drill if i remember correctly

skinned knuckles - 7/1/10 at 01:43 PM

quote:
Originally posted by bassett
Last time i was in machine mart i saw a glass polishing kit, came with polish and pads that fit to a drill if i remember correctly


I have used these before but i think they are really for polishing up where class has gone a bit dull. i dont think youll be able to get down to a scratch that you can feel when you run your thumb over it.
would probably work well once you were able to get the scratch flattened but worth a go anyway as its very daunting working away at your window with wet and dry!

[Edited on 7/1/10 by skinned knuckles]

thunderace - 7/1/10 at 02:05 PM

you cant polish it out i have tryed loads of stuff inc cuttingpast from an specs maker ,i think i tryed 7 diferent scratch removers and then gave up and it was not a deep scratch.

Grimsdale - 7/1/10 at 02:59 PM

i used to polish glass at university for analysis, and they had to be perfect! I hand polished my samples with varying grades of SiC papers to about 600grit and the final step was to use Cerium Oxide as a polish. You can find it on ebay

[Edited on 7/1/10 by Grimsdale]

matt_gsxr - 7/1/10 at 03:20 PM

if it doesn't work then you can get replacement from breakers quite cheaply (not a popular item).

Matt

mediabloke - 7/1/10 at 09:04 PM

quote:
Originally posted by Grimsdale
i used to polish glass at university for analysis, and they had to be perfect! I hand polished my samples with varying grades of SiC papers to about 600grit and the final step was to use Cerium Oxide as a polish. You can find it on ebay

[Edit: I love this place. You learn loads!]

Brasso has saved me in the past. It was the only thing to take small scratches out of mineral glass watch face. It worked a treat, so I'd have thought it would be worth a shot. (Discovered this when I was a kid. Perfect timing - Mum was none the wiser! ;-)

Or maybe one of those nice windscreen-repair blokes might be able to fill / refinish it if it's deep?

[Edited on 7/1/10 by mediabloke]