tasabatka
off to a rocking start
Member since January 2020
Posts: 3
|
Post by tasabatka on Feb 13, 2020 8:11:22 GMT -5
I have an aluminum head with a felt pad attached mounted on the end of my arbor. My plan is to do my final polishing on this pad with some tin oxide misted on from a spray bottle. My question for the group is what should the ratio of tin oxide to water be. Thank you.
|
|
|
|
Post by rockjunquie on Feb 13, 2020 9:10:28 GMT -5
I have an aluminum head with a felt pad attached mounted on the end of my arbor. My plan is to do my final polishing on this pad with some tin oxide misted on from a spray bottle. My question for the group is what should the ratio of tin oxide to water be. Thank you. Welcome aboard! Sorry. Can't answer your question. |
|
pizzano
Cave Dweller 
Member since February 2018
Posts: 1,390
|
Post by pizzano on Feb 13, 2020 10:13:56 GMT -5
I have an aluminum head with a felt pad attached mounted on the end of my arbor. My plan is to do my final polishing on this pad with some tin oxide misted on from a spray bottle. My question for the group is what should the ratio of tin oxide to water be. Thank you. Aluminum head meaning a backing plate...….? The arbor is attached to what......a bench grinder...….? Personally, I wouldn't try spraying a polish compound diluted with water......the compound needs to be a little pasty in order to be effective against the stone surface. Please provide more information related to your proposed polishing application...….that way we can try to help with a few methods on how to apply the compound for polishing. Welcome to RTH.....! |
|
tasabatka
off to a rocking start
Member since January 2020
Posts: 3
|
Post by tasabatka on Feb 13, 2020 10:48:16 GMT -5
Yes a backing plate that screws onto the shaft my grinding wheel and expanding drums are attached to. I have a felt pad attached to the backing plate. It is an old cabbing machine with silicon carbide belts and wheel. Does that help?
|
|
|
|
Post by stardiamond on Feb 13, 2020 11:04:10 GMT -5
I started with tin oxide on a leather pad on my star diamond machine. I worked the paste into the pad and used a spray bottle of water as I worked to cool and keep the dust down. My experience with tin oxide is that it doesn't work well with some material. I bought some cerium oxide but am not sure if I tried it. My initial set up was 80, 220 hard and worn 400 grit sandpaper on a vertical lapidary belt sander cooled with a spray bottle. I didn't like the undercutting on some material and bought a Genie. Everything is diamond now with 100k diamond paste on canvas pad.
|
|
tasabatka
off to a rocking start
Member since January 2020
Posts: 3
|
Post by tasabatka on Feb 13, 2020 17:36:15 GMT -5
Now I'm thinking maybe my approach was wrong. After doing some more research it appears what I should do is "charge" the felt pad with a slurry of tin oxide, after which moisten with water from a spray bottle as needed. Am I on the right track now?
|
|
|
|
Post by hummingbirdstones on Feb 13, 2020 18:42:40 GMT -5
I use a spray bottle with super cerium mixed with water in it. Never really measured how much I put in it, though. Usually a couple of tablespoons, I guess. Shake it up really good and when there's enough cerium in there to make it cloudy, I call it good. I use a leather polish pad, though, not felt and I've never had a problem getting it to polish. When you have a brand new leather, you just have to spray it more often. Eventually it builds up and you don't have to spray the polish as often. I have a separate spray bottle of just water when I just need to wet the lap when it starts drying out.
|
|
|
|
Post by woodman on Feb 13, 2020 18:53:36 GMT -5
I use cerium oxide out of a spray bottle, I use a piece of wool carpet on the backing plate, have some leather been meaning to put it on but the carpet is still working. the amount of polish in the water doesn't really matter all that much, just spray it on until you have a build up of polish on the leather, worked opal like that when I was in Australia. used tin oxide and it worked well, just have to keep it cool and not rush it.
|
|
Roger
fully equipped rock polisher
Member since January 2013
Posts: 1,487
|
Post by Roger on Feb 13, 2020 20:48:54 GMT -5
Now I'm thinking maybe my approach was wrong. After doing some more research it appears what I should do is "charge" the felt pad with a slurry of tin oxide, after which moisten with water from a spray bottle as needed. Am I on the right track now?
That is what I do, though I use a leather pad. I made thick slurry of my polishing compound and then worked it deep into the entire surface of my pad and let it all basically dry in. I just use a spray bottle of plain water to moisten and cool the rock when polishing. If I need to recharge the pad, I have an old 12oz peanut butter jar with a few tablespoons of my compound in it with some water. When needed I take a toothbrush and rub some of the mix on the pad to recharge it
Where you may have trouble is with heat from the pad if is running at 1750rpm on the cab machines side mount. I always had a hell of a time trying polish at that speed and fractured a lot of stones before picking up a 700rpm dedicated polishing wheel.
Good luck and welcome!
Roger |
|
pizzano
Cave Dweller
Member since February 2018
Posts: 1,390
|
Post by pizzano on Feb 14, 2020 1:39:18 GMT -5
Now I'm thinking maybe my approach was wrong. After doing some more research it appears what I should do is "charge" the felt pad with a slurry of tin oxide, after which moisten with water from a spray bottle as needed. Am I on the right track now? Yes...….! |
|
|
|
Post by parfive on Feb 14, 2020 2:51:08 GMT -5
Where you may have trouble is with heat from the pad if is running at 1750rpm on the cab machines side mount. I always had a hell of a time trying polish at that speed and fractured a lot of stones before picking up a 700rpm dedicated polishing wheel. Quick fix, if that’s a problem – work closer to the center of the pad. You’ll cut the effective speed in half. |
|
