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How to make bottoms less abrasive?


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#1 MichaelP

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Posted 23 March 2013 - 06:01 PM

What are your tricks to make unglazed bottoms of stoneware items less abrasive? I don't want them to scratch table or countertop surfaces.

Do you polish them with diamond wheels/points or belt sanders? Any other approaches short of attaching felt?


Thank you.

#2 bciskepottery

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Posted 23 March 2013 - 06:59 PM

I use 3-M diamond polishing pads that I get from toolocity. 50/100/200 grit. Wet sand . . . dunk the pad in water, sand/polish. Doesn't take much time, but it makes a world of difference.

http://www.toolocity...shing-pads.aspx

#3 TJR

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Posted 23 March 2013 - 08:34 PM

I sand all of my work. I first sand with a green "stainless steel wool" type thing for kitchen scrubbing.After glaze firing I sand bottoms with course sandpaper. Wear a dust mask.
TJR.

#4 JBaymore

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Posted 23 March 2013 - 09:25 PM

Slow revolution wet silicon carbide grinder with a wide wheel. Diamond blade for the first go on the really nasty stuff (I'm a woodfirer).

best,

......................john
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Professor of Ceramics; New Hampshire Insitute of Art

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#5 Mark C.

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Posted 24 March 2013 - 12:26 PM

Back when I did stoneware I ran them all on a 6 or 8 inch brass wire wheel mounted on the bench grinder. Really did a good job fast.
Mark
Mark Cortright
www.liscomhillpottery.com

#6 MichaelP

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Posted 24 March 2013 - 05:14 PM

Thank you for sharing your techinics!

#7 Pres

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Posted 24 March 2013 - 07:01 PM

What are your tricks to make unglazed bottoms of stoneware items less abrasive? I don't want them to scratch table or countertop surfaces.

Do you polish them with diamond wheels/points or belt sanders? Any other approaches short of attaching felt?


Thank you.


I use silicone carbide sandpaper adhered to a bat on the wheel. Works well for the fines stuff. For bigger stuff a dremel. Always a mask!

Simply retired teacher, not dead, living the dream. on and on and. . . . on. . . .                                                                                 http://picworkspottery.blogspot.com/


#8 MichaelP

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Posted 24 March 2013 - 08:05 PM

I use silicone carbide sandpaper adhered to a bat on the wheel.

This is an excellent idea!

#9 Bette

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Posted 24 March 2013 - 09:57 PM

Baileys carries a silicon carbide disk that with adhesive backing - fits on a standard bat so you can use your wheel

#10 timbo_heff

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Posted 25 March 2013 - 08:31 AM

I have taken to burnishing the foot more when leather hard ... saves on dusty, loud post-firing finishing. Then a tiny hit with waterproof sandpaper finishes the foot very quickly with no dust.




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