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#1
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Want to make red slip
Hi all,
I would like everyone's opinion. I fire cone 6 electric. I've been using Standard Brooklyn Red clay and love the fired brick red color. Unfortunately I hate to throw with it. It's just to sandy for me. I don't see another clay with that red brick color so I think I would like to make a slip to use over the clay that I do like. My question is what type of powdered clay should I buy to make it? What recipes do you use to get a brick red slip? Thanks, Crystal |
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#2
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"CNB" wrote in message ... Hi all, I would like everyone's opinion. I fire cone 6 electric. I've been using Standard Brooklyn Red clay and love the fired brick red color. Unfortunately I hate to throw with it. It's just to sandy for me. I don't see another clay with that red brick color so I think I would like to make a slip to use over the clay that I do like. My question is what type of powdered clay should I buy to make it? What recipes do you use to get a brick red slip? Thanks, Crystal Just use the clay, I often make slip from the clays I use. If it is a bit too sandy you can always sieve it. If you use it over a clay that fires to the same cone all should be well, but of course test it. You can always make a terra sig with letting it stand etc and then taking only the very finest particles, but just a sieved slip would probably achieve what you are after. Cheers |
#3
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That's just it. I don't think I want to buy the clay anymore since I don't
like throwing with it. I'm almost out of it too. I think it would be more work to make moist clay into slip than to take a dry clay powder and make a slip. It would be ok if I would only be using a small amount but I plan to use it to cover a lot of pieces. That clay is sandy so that would be a job to sieve out all the sand. Yuck. I think there must be a recipe that I can use to get the slip. I thought of terra sig but decided that's not what I want to do. I should have mentioned that in my post. I feel that there is to much waste with terra sig. Maybe one day I will take a shot at that though. ) Crystal "annemarie" wrote in message ... | | "CNB" wrote in message | ... | Just use the clay, I often make slip from the clays I use. If it is a bit | too sandy you can always sieve it. If you use it over a clay that fires to | the same cone all should be well, but of course test it. | You can always make a terra sig with letting it stand etc and then taking | only the very finest particles, but just a sieved slip would probably | achieve what you are after. | Cheers | | |
#4
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Did you check with your supplier to find out if they carry the same clay
without grog?? I use 103 red from Standard that has no grog but I have also gotten the same clay at times with grog (105 ???) Both are low fire. I make slip by completely drying out all my scrap clay and then adding water, soda ash & silica. No need to buy powdered clay for slip if you are throwing and trimming. Use your scraps! It works better to dry the clay pieces first before adding water but I have done wet clay when I was pressed for time. I use a paint mixer attached to an electric drill to do the mixing. Good luck, Kay |
#5
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A technique we recommend to customers in the same dilemma is to dry out
some of your standard clay body, weigh it, make it into a slip, sieve out the sand or grog, add whatever oxide or stain (roughly 10 percent for starters) you wish to use as a colourant and presto a slip that fits!!! We also recommend this technique to those using a coarse body for smoke/pit/whathaveyou firing, but who want a smooth surface for burnishing. Steve Bath UK In article , CNB writes That's just it. I don't think I want to buy the clay anymore since I don't like throwing with it. I'm almost out of it too. I think it would be more work to make moist clay into slip than to take a dry clay powder and make a slip. It would be ok if I would only be using a small amount but I plan to use it to cover a lot of pieces. That clay is sandy so that would be a job to sieve out all the sand. Yuck. I think there must be a recipe that I can use to get the slip. I thought of terra sig but decided that's not what I want to do. I should have mentioned that in my post. I feel that there is to much waste with terra sig. Maybe one day I will take a shot at that though. ) Crystal "annemarie" wrote in message ... | | "CNB" wrote in message | ... | Just use the clay, I often make slip from the clays I use. If it is a bit | too sandy you can always sieve it. If you use it over a clay that fires to | the same cone all should be well, but of course test it. | You can always make a terra sig with letting it stand etc and then taking | only the very finest particles, but just a sieved slip would probably | achieve what you are after. | Cheers | | -- Steve Mills |
#6
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Hi Kay, what is the effect of adding silica and/or soda ash to scrap clay in
order to make slip? I've always been a lazy boy and just made slip from scrap clay and nothing else (unless I'm making terra sig). What proportions do you use? Thanks! Eric SpunMud |
#7
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Hi Eric,
I use my slip for pouring molds that I have made. In order to do that the slip has to be deflocculated, which is what soda ash & silica (and/or Darvon) do to the clay. Very little water in the slip. IF you are using the slip to decorate your ware you do not want it deflocculated, it might just run off your pot. You need the water in the clay for this. If you have not added anything in the past to your slip I wouldn't start now. Enjoy the day, K Kay Take the junk out of my address to email me. |
#8
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i saw a group studio last weekend where they used regular car antifreeze as a
deflocculate ingrediant. the person giving me the tour didn't know the details, but does car antifreeze have that application in a pottery room? see ya steve Subject: Want to make red slip From: ojunk (Kay) Date: 11/24/2004 4:30 AM Pacific Standard Time Message-id: Hi Eric, I use my slip for pouring molds that I have made. In order to do that the slip has to be deflocculated, which is what soda ash & silica (and/or Darvon) do to the clay. Very little water in the slip. IF you are using the slip to decorate your ware you do not want it deflocculated, it might just run off your pot. You need the water in the clay for this. If you have not added anything in the past to your slip I wouldn't start now. Enjoy the day, K Kay Take the junk out of my address to email me. steve graber |
#9
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Even if it had, keep in mind that ethyl glycol is extremely toxic. Cats
and dogs love the taste of it and a teaspoonful spilled on the floor can kill a pet. Although nowadays in Europe at least, propylene glycol is used and it's not that toxic. max Slgraber wrote: i saw a group studio last weekend where they used regular car antifreeze as a deflocculate ingrediant. the person giving me the tour didn't know the details, but does car antifreeze have that application in a pottery room? see ya steve steve graber -- X-Privat "FREE Usenet" - http://www.newsserver.it |
#10
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Try mixing the clay body you like to throw with into a slip consistency,
then colour it with red iron oxide 5 - 10 % It will fit your pots because it is same formulation. Apply with a soft brush to leather hard thrown pots and or swill interior with slip like glazing . Good Luck Ken "CNB" wrote in message ... Hi all, I would like everyone's opinion. I fire cone 6 electric. I've been using Standard Brooklyn Red clay and love the fired brick red color. Unfortunately I hate to throw with it. It's just to sandy for me. I don't see another clay with that red brick color so I think I would like to make a slip to use over the clay that I do like. My question is what type of powdered clay should I buy to make it? What recipes do you use to get a brick red slip? Thanks, Crystal |
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