I watch A LOT of youtube videos, a lot of them instructionals or somewhat informative videos. And I gotta say: This video of yours was easily in the Top 10 best and most informative videos I have ever seen on RUclips! I am looking into Cerium oxide because I want to polish fine scratches from the wipers out of my windshield. And I'll sit down right now and do a summary of the most important things to remember when working with Cerium oxide. There's so much good stuff in this vid, it's amazing! So much that I haven't heard anywhere else. Thank you!
A lot depends on the glass and surface area. We recommend going to a 325-grit resin diamond before cerium polishing. For larger surfaces, you may want to go finer like a 600-grit resin diamond or even a pumice step before the cerium.
@@hisglassworksinc this is for a larger pane inside an entry door that was scratched with 220 grit sandpaper while refinishing the door. Trying to blend it out. Is there any remedy for the waves? I'm using a 3" sanding pad. Maybe a bigger pad?
@@mrphunkydawg You would need to work it like you would a drywall patch where you have to feather out each successive grit in the routine, so a small 1-inch scratch would end up being an area that is five to six times larger to polish. Each step would need to feather out from the scratch further and further in order to prevent optically distortion in the glass.
What a great vid. Im here looking for info on polishing rock slabs with cerium oxide. The final mirror polish is eluding me so hopefully this will help get me there
Cerium may not work well on rocks. You should speak with Covington Engineering to see what they recommend for a final polish on the type of rock you are trying to polish.
I'm thinking of getting into faceting some of my glasswork. What would you think of using the flame to do a flame polish instead of flat lapping to polish glass with several facets? I'm using borosilicate, if that makes a difference. Thank you for the very informative video.
You can certainly flame polish from the 600-grit resin diamond pad without any issue at all. You'll lose some definition in the facets from the flame polishing so you'll have to see if it fits with the aesthetic you're going for in your glass.
Does this same concept apply to glass windows and at what RPM is best for a rotary polisher? I was told 2-3k but based on the heat factor of 75-100 degrees that speed would generate too much heat...like 120-140 degrees
same concept applies, but you’ll want your cerium a little thicker so it doesn’t flow off the glass surface as quickly. I would slow down the rotary polisher, yes.
Yes, a pumice step will substantially reduce polish time. This is especially true when polishing on a lathe where you have less surface contact on the glass.
@@heukelummer True, just more difficult to use pumice. It will work okay with a synthetic felt pad, but it really requires either a cork pad or a Polpur MJ wheel on a flat bed to work well for pumice.
@@hisglassworksinc i use a 60cm polyurethane flatwheel and have a little conical shape,so i dont have to apply to much pressure and use a plastic water bottle with a tiny hole to apply a constant water drip.
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I watch A LOT of youtube videos, a lot of them instructionals or somewhat informative videos. And I gotta say: This video of yours was easily in the Top 10 best and most informative videos I have ever seen on RUclips!
I am looking into Cerium oxide because I want to polish fine scratches from the wipers out of my windshield. And I'll sit down right now and do a summary of the most important things to remember when working with Cerium oxide. There's so much good stuff in this vid, it's amazing! So much that I haven't heard anywhere else. Thank you!
Thanks so much for your kind comments. So appreciated! Glad it was helpful.
Very informative video.. one question .. is it good for car windshield to polish with it?
You can use it for this, yes.
What is the highest grit you would need to use on glass before using the cerium oxide? Great video.
A lot depends on the glass and surface area. We recommend going to a 325-grit resin diamond before cerium polishing. For larger surfaces, you may want to go finer like a 600-grit resin diamond or even a pumice step before the cerium.
@@hisglassworksinc this is for a larger pane inside an entry door that was scratched with 220 grit sandpaper while refinishing the door. Trying to blend it out. Is there any remedy for the waves? I'm using a 3" sanding pad. Maybe a bigger pad?
@@mrphunkydawg You would need to work it like you would a drywall patch where you have to feather out each successive grit in the routine, so a small 1-inch scratch would end up being an area that is five to six times larger to polish. Each step would need to feather out from the scratch further and further in order to prevent optically distortion in the glass.
@@hisglassworksinc thank you! If you made a video about scratch repair similar to this, I think my life would be complete.
What a great vid. Im here looking for info on polishing rock slabs with cerium oxide. The final mirror polish is eluding me so hopefully this will help get me there
Cerium may not work well on rocks. You should speak with Covington Engineering to see what they recommend for a final polish on the type of rock you are trying to polish.
@@hisglassworksinc I can confirm cerium works fantastic on rock slabs😁 I’ve been using it as a final polish to get a nice mirror on jaspers and agates
@@greenguy1408 Perfect!
I'm thinking of getting into faceting some of my glasswork. What would you think of using the flame to do a flame polish instead of flat lapping to polish glass with several facets? I'm using borosilicate, if that makes a difference. Thank you for the very informative video.
You can certainly flame polish from the 600-grit resin diamond pad without any issue at all. You'll lose some definition in the facets from the flame polishing so you'll have to see if it fits with the aesthetic you're going for in your glass.
what is about ferric oxide /rouge for polishing glass ? would it work better as Cerium oxide
Those are typically used for lapidary polishing and less so for glass
Does this same concept apply to glass windows and at what RPM is best for a rotary polisher? I was told 2-3k but based on the heat factor of 75-100 degrees that speed would generate too much heat...like 120-140 degrees
same concept applies, but you’ll want your cerium a little thicker so it doesn’t flow off the glass surface as quickly. I would slow down the rotary polisher, yes.
when you do your pre polish with pumice, it takes a lot less time on the cerium polish
Yes, a pumice step will substantially reduce polish time. This is especially true when polishing on a lathe where you have less surface contact on the glass.
@@hisglassworksinc also on a flatbed...
@@heukelummer True, just more difficult to use pumice. It will work okay with a synthetic felt pad, but it really requires either a cork pad or a Polpur MJ wheel on a flat bed to work well for pumice.
@@hisglassworksinc i use a 60cm polyurethane flatwheel and have a little conical shape,so i dont have to apply to much pressure and use a plastic water bottle with a tiny hole to apply a constant water drip.
Just updated with a new video on Pumice.
75-100 °F or °C?
Farenheit, definitely. That hot in Celcius would break the glass.