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ravenswood1000

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About ravenswood1000

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  1. Troubles With Glaze Blistering

    Thanks for the thought. I'll try that next bisque firing.
  2. I've been using this glaze for many years but have recently been encoutering some pretty bad blistering and some minor pinholing and I"m a bit mystified as to it's cure. The glaze: 53 Frit 3110 25 Spodumine 2.8 Strontium Carbonate 3 Silica 13 Gerstley Borate .6 Whiting .1 Magnesium Carbonate 2.5 Zinc Oxide 5 Rutile .5 Cobalt Carbonate 1.5 Black Copper oxide. At first I thought maybe it was getting old and since it contains soluable ingredients should be remade but it still blistered. It is a cone 6 glaze so I took it to cone 7. Blistered. Held it for a half hour at cone 6. Blistered. Changed out the Whiting and rejuggled the other ingredients. Still blistered. Thought that maybe something wierd was going on with the Zinc (it hardened) and replaced that with fresh. Still Blistered. On a recommendation from the local ceramics supplier I re-did the elements in the kiln (still blistered though they needed changing anyhow). Out of all the glazes I use, this is the only one giving troubles and it never used to be a problem. Firing it to cone 6 a second time cures the blistering. My next step it to change out the clay body and after that purchase all new glaze ingredients from a supplier on the other side of the country. Does anyone have any advice on this? Thanks much in advance. ps. Everything is bisqued to cone 04 before glazing and no changes have been made to the process except a new batch of clay body was purchased.
  3. Stamping A Logo

    So far it looks like I'm getting the best results with the silicon but the WD40 sure works well also. Can't wait to see what happens in the first firing. I have inquired about the use of decals which would be fine by me but the store owner says no.
  4. Stamping A Logo

    I've attached the logo. Please note this is a smaller version and the one I'm working with is about 2 3/4 inches from tree tip to root. Thanks for all the feedback!
  5. Who Gives Their Own Work As Gifts?

    Oh yes. I give lots of my stuff for gifts. Coffee cups with a person's name or interest on them is always good but often I try to make something for a person that they cannot easily get at a store. Recently I gave a bread bowl to a friend who likes to make the tasty homemade stuff but was unable to find a bowl that would hold 4 loaves worth of dough. Not anymore heheh.
  6. Stamping A Logo

    I'm having trouble with the stamping of a rather ornate logo and was hoping someone might be able to give some advice. Had a rubber stamp but it would not leave marks very deep so I purchased a nice metal stamp which should leave nice deep marks to later fill in with glaze. The problem is that when I give it a good push then pull the stamp off the clay it has a tendency to rip out part of the design. I've tried applying various things to the stamp to try and prevent this. Flour, vegetable oil, water and cornstarch have all been tried to no avail. I've considered silicon release but am afraid what that might do in the fire. The clay I'm pressing into (then would later apply to the cup) is eight of an inch thick and the logo is about 2 3/4 inches on each side. Does anyone do this and have much success? Thanks for any advice.
  7. Is My Website Ok?

    Thank you all so very, very much for taking time to look at it and send back observations/comments. I've been looking at them all and then the website and believe I clearly see where improvement can start. I'll be taking it apart and putting a new one up as soon as I can. The crock, yea that was one of those stories that I'm hideously ashamed of but at the same time, it can happen to everyone. The piece was absurdly heavy (in my book) but was made to an exact standard. To bisque I figured that an 8 hour candle would be a good thing so the kiln was set for 8 hours at 180F. Unfortunately I forgot to put the thermocouple in it so when I left the building for a couple of hours and returned there was this very odd noises coming from the kiln. Realizing what had happened I put the thermocouple in and it was at 1500f so I shut it all off and let it cool down. The resulting sand from the explosion which I am sure rocked the building was quite liberally embedded in the soft brick. Dry though!
  8. Am terrible at this and I know it needs so much improvement. Can I ask folks to look at my website and tell me what it needs? Thanks so much in advance. The url -> prescottpottery.com
  9. Rust Red Glaze Recipe

    Thank you very much. I'll be trying this in the next firing!
  10. Rust Red Glaze Recipe

    Does anyone have a "Rust Red" glaze recipe they would care to pass on? Cone 6 oxidation is what I'm hoping for. I've tried most of the stuff I can find on the internet and usually just end up with brown but I have some store bought stuff that works every time and I'm hoping to somehow not have to get it from them all the time. Thanks much in advance.
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