Woodchipper
Member
Has anyone used it for polishing acrylics or synthetics? Anyone know the grit "count?" Curious.
Dental pumice as a polish?
- Thread starter Woodchipper
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monophoto
Member
I vaguely recall hearing that some people use toothpaste as a final polish.
And I think I actually tried it once and concluded that Meguire's PlastX is less expensive and does a better job.
And I think I actually tried it once and concluded that Meguire's PlastX is less expensive and does a better job.
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rixstix
Member
I have seen charts which show the relative abrasiveness of different brands of toothpaste. Mr Google can be your friend.
Relative Dentin Abrasivity Toothpaste Chart | Distinctive Dentistry
The Relative Dentin Abrasivity is a measure on how much tooth structure can be worn using a specific paste. Look at the list of highly abrasive tooth paste.
www.davidjmartindds.com
WriteON
Member
Pumice is generally … flower of pumice, Course, medium or fine. It works well but for fine scratches. Wound Just my opinion.. the mesh pads are the best. Pumice is best used with a 3-4" rag wheel or felt cones. Pumice is messy … it's having sand thrown at your face. You do not want it in your eyes. Googles are a must but we use them regardless. If you want to try it start with medium or fine.
Woodchipper
Member
Thanks. Pondered buying some online. Seems there are better ways to polish.
WriteON
Member
What are you polishing? I watched a few utubes… people using pumice on furniture. It must be good but I'm not a fan for a lot of reasons. I used pumice on acrylic dental appliances using a Baldor lathe with buffing wheels. It was a wet application. Water&pumice. On the utube the craftsman is using it dry.
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Jans husband
Member
Seems like a lot of messing around to me, especially when good old Yorkshire grit is available, and does an excellent job in finishing and polishing wood and acrylic
Mike
Woodchipper
Member
Just curious. Have polishing compound on the shelf but seeing if anyone has used pumice.
I did, for French polish. When the wood is open-pored, you first rub a mix of pumice and shellac (and alcohol for a better penetration) to fill the pores. In the same time, pumice sand the wood to the last shine. We have a very thin grain cald ponce-soie, silk pumice, for that. The pumice takes the color of the wood when rubbing it ; it fills the pores, the shellac glues it in. Then, it is possible to lay the first shellac layer on a good base, and the pumice scratches won't show. I think it is quite specific for French polish.