sterling-archer Posted February 25, 2018 Share Posted February 25, 2018 Does anyone have any tips of what grit to use, how long to finish etc for sea glass tumbling ? Im struggling to get beyond a bluish sheen and achieving that true shine in the glass. I tried longer finish Polish but its the same if not a to tad worse as the polish fills with glass debris. Im 2 stage polishing with 400 grit for 24-48 hours and zinc oxide to finish for 24-48. Any tips or sweet spots etc would be mucn appreciated Ive ordered more grades and plan to play around but i will not rest until my glass is smooth as a babies Link to comment Share on other sites More sharing options...
OldFord Posted May 30, 2020 Share Posted May 30, 2020 A|re you polishing by hand or machine ? I would have thought since most glass is porous with a micro pitted surface achieving a high lustre would be achieved by closing the top surface ? If so a wet polish with higher grades 1000 upwards to around 3000 would be final wet sanding prior to cerium oxide machine polish. A dremmel works wonders, i use this very method for cutting & polishing old car windows although i use various mops grades and rotary polishers. I also use good old scrim cloth as nothing else works like it !! May alos be worth looking at headlight restoring compound but the glass version NOT the plastic one. I tend to stick with Farecla , 3M , Bilt Hamber as for me they work wonders. 1 Link to comment Share on other sites More sharing options...
OldFord Posted May 30, 2020 Share Posted May 30, 2020 4 minutes ago, OldFord said: A|re you polishing by hand or machine ? I would have thought since most glass is porous with a micro pitted surface achieving a high lustre would be achieved by closing the top surface ? If so a wet polish with higher grades 1000 upwards to around 3000 would be final wet sanding prior to cerium oxide machine polish. A dremmel works wonders, i use this very method for cutting & polishing old car windows although i use various mops grades and rotary polishers. I also use good old scrim cloth as nothing else works like it !! May alos be worth looking at headlight restoring compound but the glass version NOT the plastic one. I tend to stick with Farecla , 3M , Bilt Hamber as for me they work wonders. Ignore me i just noticed your tumbling ....... not polishing a tumbler Yes i have used tumblers but not for glass, talk to my friends at PDJ Vibro .... very very good tumblers / vibro polishers. Very friendly too. Link to comment Share on other sites More sharing options...
CBDGUY Posted November 22, 2020 Share Posted November 22, 2020 (edited) have you tried levigated alunina for polishing? thats what we use in the lapidery buisness that or a very fine cerium oxide low grade i believe 600 and 800 grit would give you the surface that your looking for if i remember corectly. i dont remember the mohs reading for glass, but the finer the grit you use the better Edited November 22, 2020 by CBDGUY 1 Link to comment Share on other sites More sharing options...
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