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Is it "done" or under-done?
I've been using polymer clay for 12 years, maybe a little more. I
know that recently the makers of FIMO have lowered the recommended bake temperature. Because I rent, I have always been at the mercy of whatever oven landlords provided. Because of this, for a long time, I used a small toaster oven (even though that is not recommended). For the last couple of years I have been using a larger toaster oven (outside dimensions 11 in. W by 11 in. deep by 16.5 in. high) manufactured by GE and sold by Wal-Mart. I have made "creatures" in the past that were fairly large, but I just winged it and hoped for the best. I was setting the oven at 265. .. I'm working on a multi-color heart for an injured veteran of the Iraq war. I pirated small picture frames from key chains and plan to suspend them at intervals from the heart so his family can put favorite photos in them. The heart is open, like an outline; that "outline" is about an inch wide by half an inch deep. The overall heart shape is approximately 9 inches at its tallest point by 7 inches at the widest point. .. If memory serves I baked this about 40 minutes with the temperature set at about 250 because an oven thermometer shows that this oven when set at 250 cycles between about 220 degrees and 260 degrees. I was inserting wire in holes I poked in the clay before I baked it. The wire is what the frames will be suspended from. The clay around the holes crumbled slightly, although I was working it roughly. I am always hyper-concerned about stuff I make that goes out into the world...whether it will hold up and is of good quality. .. Because of this I am wondering if anyone else has input on baking methods, times, etc. Most of the clay in this heart is FIMO, but there is PRIMO in it, too. I'm concerned because the idea of the heart is for it to hang...like on an I.V. pole. I've made hearts before that have dangled from I.V. poles, swinging and bumping, and there hasn't been a problem. However, those were perhaps 3 in. wide by 4.5 in. tall and 1/4 to 1/2 in. thick. .. I'm sorry this post is so long, especially for a first-time poster. I became aware of this group when I read stuff on the web about the new FIMO baking temperature. Thanks! |
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#2
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Is it "done" or under-done?
The best thing is to get an oven thermometer, really two, and place one
near the front of the oven, and another near the back. Let the oven warm up for a while and check the temperature. I find that placing a small ceramic tile on the grid helps to regulate temperature better in small ovens. If you are mixing older Fimo with Premo you can bake safely at 275. New Fimo cannot be mixed with anything except new Fimo. The baking temp is significantly lower than any other clay to insure that a higher temp clay will not properly cure. That said, your crumbling issue could be because the clay was either under down or over done. Barbara Bead & Polymer Clay Habitué There is a very fine line between a hobby and mental illness. (Dave Barry) http://www.penguintrax.com http://www.backseatgrammarian.com http://www.polymerclayworkshops.com bex707 wrote: I've been using polymer clay for 12 years, maybe a little more. I know that recently the makers of FIMO have lowered the recommended bake temperature. Because I rent, I have always been at the mercy of whatever oven landlords provided. Because of this, for a long time, I used a small toaster oven (even though that is not recommended). For the last couple of years I have been using a larger toaster oven (outside dimensions 11 in. W by 11 in. deep by 16.5 in. high) manufactured by GE and sold by Wal-Mart. I have made "creatures" in the past that were fairly large, but I just winged it and hoped for the best. I was setting the oven at 265. . I'm working on a multi-color heart for an injured veteran of the Iraq war. I pirated small picture frames from key chains and plan to suspend them at intervals from the heart so his family can put favorite photos in them. The heart is open, like an outline; that "outline" is about an inch wide by half an inch deep. The overall heart shape is approximately 9 inches at its tallest point by 7 inches at the widest point. . If memory serves I baked this about 40 minutes with the temperature set at about 250 because an oven thermometer shows that this oven when set at 250 cycles between about 220 degrees and 260 degrees. I was inserting wire in holes I poked in the clay before I baked it. The wire is what the frames will be suspended from. The clay around the holes crumbled slightly, although I was working it roughly. I am always hyper-concerned about stuff I make that goes out into the world...whether it will hold up and is of good quality. . Because of this I am wondering if anyone else has input on baking methods, times, etc. Most of the clay in this heart is FIMO, but there is PRIMO in it, too. I'm concerned because the idea of the heart is for it to hang...like on an I.V. pole. I've made hearts before that have dangled from I.V. poles, swinging and bumping, and there hasn't been a problem. However, those were perhaps 3 in. wide by 4.5 in. tall and 1/4 to 1/2 in. thick. . I'm sorry this post is so long, especially for a first-time poster. I became aware of this group when I read stuff on the web about the new FIMO baking temperature. Thanks! |
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