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10-12-2010, 11:28 AM
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#21
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Borrow money from a pessimist, they don't expect it back.
Join Date: Sep 2004
Location: bonkerville
Posts: 734
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2 more up now 
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10-13-2010, 03:12 PM
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#22
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I took an IQ test and the results were negative.
Join Date: May 2010
Posts: 66
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is it important to have a pressure pot/vacuum chamber when making molds?
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10-13-2010, 05:16 PM
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#23
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Borrow money from a pessimist, they don't expect it back.
Join Date: Sep 2004
Location: bonkerville
Posts: 734
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You can make molds and cast kits without them but the results will not be as professional.
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10-13-2010, 06:19 PM
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#24
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I took an IQ test and the results were negative.
Join Date: May 2010
Posts: 66
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sorry if this sound noob-ish to you. is a pressure pot safe within a household environment or do you need it to be in a garage etc.. i just have 1 room as a hobby room in my house and i just want to know if its safe
thanks..the videos are great btw
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10-13-2010, 07:16 PM
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#25
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Before you criticize someone, you should walk a mile in their shoes. That way, when you criticize them, you're a mile away and you have their shoes.
Join Date: Apr 2007
Location: UK
Posts: 601
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Hi Jayco, more good stuff, but I feel like I missed something. It's been a while since I did any mould making with silicone, but the stuff you are using, it has a very long pot life? I'm sure the stuff I used only had about 20 mins.
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10-14-2010, 02:19 AM
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#26
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Borrow money from a pessimist, they don't expect it back.
Join Date: Sep 2004
Location: bonkerville
Posts: 734
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I do not recommend a pressure pot or compressor in a apartment. They are loud and you may have complaints from neighbors.
What silicone where you using that cured in 20 minutes ?
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10-14-2010, 03:58 AM
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#27
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Before you criticize someone, you should walk a mile in their shoes. That way, when you criticize them, you're a mile away and you have their shoes.
Join Date: Apr 2007
Location: UK
Posts: 601
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I can't remember now, and to be honest, it's so many years ago now, I could be completely wrong.
Because money was tight, I built up the mould layer by layer with a thickening agent to save on the amount of silicone used, and I *thought* it went off into a gel fairly quickly. Could the thickening agent accelerated curing and so reduced the pot life? This made me wonder about how relaxed you were about time. Obvioulsy the catalyst had already been added, then you explained about the vacuum pot, then vacuumed it for 20 mins, then was still able to pour it.
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10-14-2010, 10:48 AM
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#28
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Borrow money from a pessimist, they don't expect it back.
Join Date: Sep 2004
Location: bonkerville
Posts: 734
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Yes if you were using a thickening agent that would have made cure time much faster. I use the 24hr cure but can get it to cure faster by increasing the amount of activator in the mix.
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10-15-2010, 05:30 PM
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#29
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I took an IQ test and the results were negative.
Join Date: May 2010
Posts: 66
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dont know if this was asked earlier. what material are you moulding ? and what release agent are u using in the process?
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10-18-2010, 08:03 AM
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#30
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Borrow money from a pessimist, they don't expect it back.
Join Date: Sep 2004
Location: bonkerville
Posts: 734
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The sculpture was made with super sculpey. I only used a separator for the molds and that was matte finish.
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