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Bob Coyle

Member Since 06 Jun 2013
Offline Last Active May 21 2016 08:09 PM
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Posts I've Made

In Topic: Antiques Roadshow

21 May 2016 - 08:13 PM

Looks good to me. Well worth the money.


In Topic: Lose The Sitter Your Opinion Counts

21 May 2016 - 08:11 PM

Leave the sitter. Digital controllers can fail, but gravity does not. Put a cone higher than you will reach in the sitter. It's there already, so why not have one more layer of fail safe.


In Topic: Newbie Needs Help With Glaze Cone 6 - Can It Really Be This Hard?

20 May 2016 - 06:11 PM

Cheat and throw in 0.5% cobalt carb.


In Topic: Has Anyone Actually Made Pavers?

18 May 2016 - 05:34 PM

 

The cone of clay to use will have to be an experiment.

 

You need to fire it at cone 5 or above. This is the mid fire lower range. The type of clay is up to you. Just so it matures at cone 5 or above. Low fire clay's don't cut it. Outdoor tiles are usually bedded in Thinset mortar, and then grouted with sanded tile grout. Neither of these things have anything to do with the spalling/cracking problem.


In Topic: Curiosity Question In Regards To Using Glass In Claywork

17 May 2016 - 03:53 PM

One of the bad things about a bad COE fit is that it may be close enough to not show up at first, and then start to crack as it ages, or after a few trips in and out of the fridge.