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Re-frosting a muller

Once again, I’m har­vest­ing an email ques­tion to pro­vide mate­r­ial for this blog.

A muller is a tool, gen­er­ally made from glass, used to grind paint (and some­times pig­ments). The sur­face of the muller (and the slab it’s used to grind on, if that is glass) gets ground smooth over time. So it needs to be re-frosted.

Matthew writes:

I have a glass muller in which I grind my own pig­ments. Lately it has become quite dull so I started to research infor­ma­tion on recon­di­tion­ing the muller. I found that carorun­dum (sil­i­con car­bide or skate­board paper) is sup­posed to bring it back to life. I used sand paper but I have no idea where to get cor­borun­dum from…

can you give me any alternatives?

I use car­borun­dum pow­der, which I got from Sinopia. Use your muller to grind a small amount in water and it will re-frost the glass.

Posted in art materials.

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4 Responses

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  1. Lisa says

    GREAT BLOG!!! I have read a num­ber of your posts/articles and found every­one of them very inter­est­ing. I am going to add you to our blogroll so our view­ers will read you too. Keep up up the nice work!

  2. David says

    Thanks, Lisa.

    I note from your blog that you’ve encoun­tered Mr. Doak and sur­vived. Good for you. He’s not for the faint of heart—but his paint, while not as mirac­u­lous as he some­times likes to claim, is of amaz­ing qual­ity for the price he charges. If you can, visit his shop some­time and meet him in per­son. It’s quite an experience.

  3. Matthew says

    I recently got a good response from Mr. Rourke (I am Matthew), but make sure that you get the f120 car­borun­dum and not the f400. The f150 is much harder and will give you the results Sinopia sug­gests. Thanks.

  4. David says

    Thanks for the clar­i­fi­ca­tion, Matthew.



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