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| Tips, Techniques, and Questions -- Technical questions or tips |
2008-11-13, 2:48pm
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Trying to Hope!
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Join Date: Nov 13, 2006
Location: Ripon California
Posts: 3,845
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Ideas How to Build a hot pot for flower petals
I want to do a cover for my hot plate to keep my petals super hot
I wanted to see what ideas others might have..
Heres My ideas I have a 700 degree hot plate from hp scientific but the tops of the petals still get cold sometimes I am aiming to keep the whole petal hot at the same temp
1 idea is cut my fiber blanket from my hot head days and cover it in foil lay it on top of the beads or petals but I am afraid it will start to smell with the hot plate being so hot.
another idea is to get a terra cotta flower pot cover it in fiberblanket and add a handle to sit on top of the hot plate to contaibn the heat inside a little more
Which would you do?
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2008-11-13, 4:17pm
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formerly JewelsByJenny
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Join Date: Sep 04, 2005
Location: Central Coast California
Posts: 917
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I like the flowerpot idea 
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Jenny
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2008-11-13, 4:34pm
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Mary Lockwood
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Join Date: Jun 21, 2005
Location: Boonies
Posts: 5,831
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I tried the flower pot saucer idea and it exploded. Just be prepared. LOL
I wasn't using mine as a lid, I have one of the laboratory hotplates too, a 4 inch round metal surface that is supposed to hit 750F in 8 minutes. There is no knob, it just plugs in and goes up to its max temp.
My problem was I didn't want the stuff I had sitting on it rolling around, so I put the terra cotta saucer on it so I'd have a rim to catch murrini and stuff. Well, I had put it on the hotplate and the hotplate ramped up to temp too fast or something because the saucer exploded and all the chips I had in it flew everywhere.
Not sure what I could have done differently, but that's my experience with that.
I think a metal lid off something might be a better plan. Like an old metal canister lid or something of that sort.
I had used that terra cotta saucer in my kiln plenty of times with no episode or even cracking. It was totally unexpected when it exploded. I almost fell backwards off my seat.
~~Mary
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2008-11-13, 4:37pm
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Wahwahbabypants
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Join Date: May 01, 2008
Location: the true north strong and free (Canada)
Posts: 708
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Mary I wonder if your terracotta pot just thermal shocked?? I use a saucer in my kiln and take it up to 1600 without shattering. But I do a controlled climb up. Every once in a while one will crack but never shatter... and liquid glass gets dropped into it. The ones from Italy are better quality than the Mexican ones....
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2008-11-13, 4:39pm
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Mary Lockwood
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Join Date: Jun 21, 2005
Location: Boonies
Posts: 5,831
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Oh yes, it was definitely thermal shock. It's just that because she has the same style of hotplate that I have, I wanted her to be careful of it. Maybe with lining the terra cotta with fiber blanket, it will eliminate some of that. These hotplates come up to temp so flippin' fast...it's crazy!
Thanks for posting though, I didn't want to give the wrong impression.
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2008-11-13, 4:49pm
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Certified Glassaholic!
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Join Date: Jun 17, 2005
Location: In my own little world.....
Posts: 1,792
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maybe use a pyrex dish or something like that?
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2008-11-13, 4:49pm
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Senior Member
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Join Date: May 23, 2006
Posts: 5,540
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You know, I just purchased a ceramic heater from Sally's Beauty Supply and I LOVE it. They are $69.95. If you have the funds, they are so worth it. I too make flower petals and I like to preheat my dichro too and it just has made my life so much easier. I know that wasn't really your question, but I thought I would throw that in.
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Cynthia
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2008-11-13, 4:59pm
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Senior Member
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Join Date: Jul 01, 2008
Posts: 1,187
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A large glass petri dish would work, or maybe a large beaker. You can get those form any scientific supply co.
We heat those on hot plates a lot with no explosions I don't know if that will accomplish what you want; you'll just have to try it.
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2008-11-13, 5:32pm
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Trying to Hope!
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Join Date: Nov 13, 2006
Location: Ripon California
Posts: 3,845
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I nixed the terra cotta idea hate exploding things
I took a piece of fiber blanket and covered it in foil and made a foikl handle to make a shallow bowl kinds shape then made my petals stuck them on the hot plate and then set the little foil hat on top of them.
Corals stayed dark grey and Fish pink stayed transperant so thats what i was going for No more exploding petels YAY! I will post a pic of the monsteroud flower I made tomorrow
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2008-11-13, 7:45pm
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Uh-oh means it's too late
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Join Date: May 23, 2007
Location: South Florida
Posts: 2,527
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Too cool of an idea!!! I was wondering if it was worth it to get a petal puller cuz i had no idea how I was going to keep the durn things hot but this helps!!!! i will check Sally's tomorrow I have one right down the street. TTFN
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TTFN
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Michelle
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2008-11-14, 7:52am
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Senior Member
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Join Date: Aug 01, 2005
Posts: 2,159
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I've been using the ceramic heater from the beauty supply place for years to heat rods. For small structural parts, murrini, etc, I put a strip of metal that's about 2 X 3 inches in the bottom (to keep the glass bits from sticking) and lay the pieces in on top of the strip before I heat it up. Everything reaches a good operating temp and you can retrieve the parts either with a punty or heated forceps. You can still heat rod tips in the front part as well while you're working.
Robert
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2008-11-14, 7:58am
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Senior Member
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Join Date: Jun 05, 2005
Posts: 2,391
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The ceramic heater gets hot enough that glass will stick. The graphite paddle fits pretty well, and you have a handle so you can easily pull it out to pick up the hot pieces.
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2008-11-14, 8:23am
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Senior Member
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Join Date: Aug 01, 2005
Posts: 2,159
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The thin (1.5mm) brass sheet conducts the heat well and keeps the glass from sticking. I also keep a piece of hardware cloth on the bottom of the heater to keep glass rods from contacting the ceramic surface and sticking.
Robert
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2008-11-14, 8:36am
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Trying to Hope!
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Join Date: Nov 13, 2006
Location: Ripon California
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I will have to keep an eye out for a heater next time we find one.
I like my little hot plate too tho its about 6 by 6 inches and the top is a metal i think not sure what kind but it gets hot fast and works great
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2008-11-14, 8:47am
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Scientific Glass Girl
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Join Date: Oct 30, 2005
Location: Seattle, WA
Posts: 5,138
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try to get ahold of a piece of quartz sheet glass. it definitely won't tack to the hot plate.
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Ali VandeGrift
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2009-01-12, 9:04am
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Junior Member
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Join Date: Sep 29, 2008
Location: Brownsburg, IN
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One suggestion. If you have a hot plate that has only an ON/OFF setting, there is a thing you can buy at Harbor Freight for $15 that will help. You plug the hot plate into it, it then plugs into the wall.
The device has an OFF/ON/VARIABLE 3-position switch. It also has a knob that you turn to control the setting in the variable position. This way you can control the heat from 0-100%.
I can't find it on their website but I was just there the other day and they have tons.
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2009-01-12, 9:09am
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Trying to Hope!
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Join Date: Nov 13, 2006
Location: Ripon California
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I have a 700 degree hot plate from hp scientific and I ended up cutting a chunk of fiber blanket and wrapping it in foil in a dome like shape that sits on top of the hotplate part
Works great keeps corals grey and no more shocking petals
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2009-01-12, 9:47am
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ManBearPig
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Join Date: Jun 28, 2005
Location: Roanoke, VA
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The answer to this question may be obvious, but I'll ask anyways...
Why not just put them into your kiln and take them out when you are ready to use them?
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2009-01-12, 9:50am
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Trying to Hope!
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Join Date: Nov 13, 2006
Location: Ripon California
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My kiln door is little and hard to get into and the bottom near the door wasnt as hot as I would have liked.
I really wish i would have chosen a diffrent kiln then the one i got soething with a higher bead door or lower elements or something
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