Have a customer with a showcase whose top glass surface is scratched from many years of heavy use and has asked me to polish it, as best as I can! They’re not seeking perfection, just increased clarity. It has wide perimeter bevels to provide continuity with the wood framing, or I’d simply cut new pieces. It is NOT tempered, but as with most of my showcase glass ….. received from the slightly used market, I believe it is double strength, as it is seriously impact resistant, but I can cut it normally and deburr the fresh edges.
Are there any processes I might try, using relatively common materials, to polish the surface …. not remove the deep scratches, but just polish/blend what’s there to improve clarity? Again, this is in the center of the flat panel, not the edge, and if it resulted in a clearer, but wavy surface that would be acceptable. Any suggestions are appreciated.
Thanks,
John in Texas
Replies
You could contact the folks that make MicroMesh. I've seen in their catalog abrasives for polishing plastic and, I think, glass.
https://www.micro-surface.com/default.cfm?page_id=1
forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl ;-)
Another proud member of the "I Rocked With ToolDoc Club" .... :>)
There are several places that sell glass polishing kits for old cars, one is the Eastwood company: http://www.eastwoodco.com/shopping/product/detailmain.jsp?itemID=2010&itemType=PRODUCT&iMainCat=596&iSubCat=597&iProductID=2010
They do say these kits only work on light scratches; if they are big enough to catch with your fingernail they may not polish out.
Thanks Stuart! Eastwood's the place I'd forgotten. Used their kits long ago to polish out wiper scratches from a rare pair of 1951 Ford tinted windshield panels! Should work fine on this showcase. They have the deep-scratch, glass grinding kit also, which will fill the bill!
John
Hi John,
I'd make a couple of calls to glaziers and see what they say.
Surprised that your customer hasn't done this already.
Cheers,
eddie
You might check with some local marble/granite installers. I've seen one here that was using some sort of polishing compound with an automotive buffer to take scratches out of marble.
I'm surprised your customer didn't consider having a local glass shop replace it.
Thanks for the ideas .... I'll follow up on them. This customer keeps coming to me for freebies; guess it's because I have a hard time saying no! The commissions on regular work justify some of them, but lately it seems all the other woodworkers have a bigger rock to hide under .... well I suppose they are living under it! They also don't get the good work when it comes along, but that's mostly because they have too many examples of garbage haunting them. I've been brought some of their best junk to be repaired, and I can't believe some of the things they've actually charged for!
This customer is also shrewd, and I suspect was turned off by the replacement cost of a new beveled glass. When I quote the polish, it will likely be close to the cost of a new panel, minus the labor & mileage. Hopefully, I can do it in situ, as that showcase weighs 340# empty.
Thanks again,
John
Tail, Cerium oxide (White powder) and water make a 'slurry'
of the stuff and using a clean woll buff
on a slow speed buffing machine go at it.(Make figure eights)
Good for windshields, head lamps, watch crystals. Even scratched eye glasses. Steinmetz.
Edited 1/16/2006 5:48 pm ET by Steinmetz
I'll give that a try. I keep nemerous different buffing compounds around for both hard felt wheels and loose muslin wheels, but nothing I'd want to try on that showcase glass.
thanks,
John
Tails, Google up cerium oxide for retailers I bought my CO as a kit with a felt wheel and arbor for a drill .
It takes time,
and heat buildup must be avoided
Buy a pint sized amount to save moneySteinmetz
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