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perkolator

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About perkolator

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  • Birthday July 18

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  1. Main reason why I discourage people from using wadded newspaper and other armatures when hand building sculpture, they're usually unnecessary with proper construction methods and can create problems like you're experiencing. I'd bust out a drill and make a hole up into the neck cavity from the base, then get at it with extracting as much paper as you can.
  2. perkolator

    Binding Ceramic to Silicone?

    Silicone only really likes to stick to silicone, otherwise you're looking at more of a mechanical fit. My best advice is to get a hold of some food-grade casting silicone and basically cast your own ONTO the clay object.
  3. perkolator

    Pottery Stools, what do you use?

    my go-to:
  4. perkolator

    Centering 50lbs on a VL Whisper?

    First thing you EVER do when working in a new studio is measure the kilns
  5. perkolator

    Grinding tool

    For shelves I usually start with hand tools -- cold chisel/hammer/silicon carbide rub-brick. Bad drips that eat into furniture I use a 4" angle grinder with a diamond-core grinder head -- I used to use a silicon carbide masonry head but the diamond-core head works amazingly well in comparison.
  6. perkolator

    What do you use to mix your glaze

    Anyone looking for a good stick blender, I finally found one. Waring Pro WSB33 commercial grade at only $80 on Amazon. Went through 3x Cuisinart stick blenders, they all failed at the connection where the shaft detaches for cleaning (plastic parts inside). Anyways, this one does not come apart, steel guts inside and haven't been able to kill it yet Follow up with small Talisman test sieve. Larger batches using a drill with paint mixer head (do Jiffy mixers really do that much better???) and follow up with Talisman crank sieve. Rarely do dry mixing of glaze, it's always inside a lidded container if I do - like an old casting sip gallon container or 5gal bucket with lid.
  7. No prob. I think the key to his success was to make a base coat of exterior house paint, then he'd use acrylics and whatnot to do his line work. He only used quality acrylics, like Golden I believe, I doubt the cheaper paints would last as long as these did. Good luck
  8. Nail polish, enamel paint, acrylics, latex paint, etc. Artist friend of mine used to paint a lot of his work with "oops paint" from hardware stores and good quality acrylics -- his painted surfaces have held up on some of his outdoor pieces exposed to CA sun and "winters" for the last 10+ years and only in last few years have seemed to fade (the acrylics)
  9. FYI, Placer High School in Auburn CA is hiring a new Art Faculty to take over Ceramics. Job just got posted this week: https://www.edjoin.org/Home/JobPosting/1016332 They want someone good, someone who knows ceramics and who will help continue inspiring and attracting students to their awesome art department - so pass this along to anyone you know who's looking. The classroom is already setup - lots of nice butcher block work tables, an elevated wheel throwing area for their electric wheels, attached kiln room with a brand new Skutt oval and another 1227, outdoor kiln yard setup with clay storage, de-airing pugmill, a small gas kiln that works and a larger gas kiln that was acquired years ago but never hooked up (looks barely used, but needs work on burner system IMO). It's a pretty nice setup for a HS compared to other studios I've seen.
  10. Correct. This is why I'm looking for alternate sources
  11. Wondering if anyone can please share their source for thicker nichrome or kanthal wire and rods? Thick as in anywhere from say 8-16 gauge thickness (~3mm-1.5mm), not the thin stuff. Want to make some custom kiln furniture such as stilts and bead racks, etc. The nichrome at all the local places is too thin for our application, like 20ga or thinner. They do carry the normal 1/8" bead rack rods, but they add up $ quickly when sold a la carte. Some of the thicker rolls of wire I'm finding are about 12ga at about $1.75/ft For something like 9ga I'm seeing about $4/ft Can anyone comment on using kanthal vs nichrome for suspending things in kilns? I'm reading kanthal is slightly stronger, but can transfer iron to clay (I could just coat it with ITC-100 to resolve that?)
  12. perkolator

    Faking cone 10 MG2/Soldate at cone 6?

    ^Sorta, yes. The glaze in question is just a matte white, the speckled look you want comes from interaction with the iron in clay body mainly. If you're looking for something to experiment with I'd suggest you try ilmenite. Can be added into your glaze or wedged into your clay body to create speckles.
  13. For a project like this I'm thinking you need a slip/engobe that has a much higher than normal tensile strength or to cast it thicker - otherwise it's super fragile like you're experiencing, like look at it wrong and it's going to break, lol. The problem with trying to "layer" your material and gain thickness is that you now lose all the detail you were trying to capture -- such as the texture of fabric, yarn, sponge in this case, etc. The key is to have a very fine particle size and allow it lots of time to wick up into the material you're trying to impregnate with slip. Ceramics tensile strength is simply very very low compared to the incredible compression strength it has and is effected by many factors. To really refine this project I'd imagine you'll have lots of testing to do Some basic examples I can think of that effect this: particle density/porosity/particle size, vitrification level/sintering, crystalline structure/matrix/mullite development
  14. I can't think of anything either that resembles glaze and is a cold surface other than paint. Closest thing I could suggest is silicone ( and possibly clear epoxy resin) There are silicone casting products that are rated food-safe - an example would be Smooth-On "SORTA-Clear", which is a translucent silicone rubber (I think you can tint/color it too?) Not sure about the epoxy resin products. I'd assume fine for cold items, but not for warm items. Silicone is good up to at least 400+*F, you can stick it in the oven for baking or pour molten sugar in them for candy, etc.
  15. I sometimes use food coloring in my glazes - because I'm colorblind and many raw glazes look identical to me. Doesn't matter which brand you use, they will all make color and burn out in the firing, i've been using McCormack from grocery store. I first started doing it when I was spraying glaze - I'd put a drop or two into my sprayer pot, spray it on and change the color enough to see each layer.
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