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elebelly Avid Beader


Joined: 22 Sep 2007 Posts: 322
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Posted: Thu Jan 17, 2008 8:45 pm Post subject: my pmc isn't behaving, sob sob |
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Grrr I opened a new packet of pmc a couple of days ago and used it then and it was fine. I wrapped it up in cling film as you should and now 2 days later I can't do anything with it. It's a really strange texture and just keeps breaking off in little bits making it impossible to work with
Does anyone have any ideas?  _________________
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CarmenJean Bead Maniac


Joined: 10 Jun 2006 Posts: 1073 Location: Selsey - West Sussex (Near Chichester)
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elebelly Avid Beader


Joined: 22 Sep 2007 Posts: 322
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Posted: Thu Jan 17, 2008 10:26 pm Post subject: |
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Thanks for the tip. I tried this a few hours ago but it hasn't helped (maybe being impatient though).
This is what it looks like (beautiful picture!):
 _________________
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CarmenJean Bead Maniac


Joined: 10 Jun 2006 Posts: 1073 Location: Selsey - West Sussex (Near Chichester)
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poledra Busy Beader


Joined: 15 Feb 2008 Posts: 199
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Posted: Fri Feb 15, 2008 4:42 pm Post subject: |
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When you reseal up clay, after wrapping in cling film add a wad of kitchen paper that has been dipped in water to the zip bag to keep thing moist.
Jenny |
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elebelly Avid Beader


Joined: 22 Sep 2007 Posts: 322
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Posted: Sat Feb 16, 2008 9:13 pm Post subject: |
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Thanks for the tip Jenny.
I haven't tried using my pmc again since I posted this!
It upsets me so much when it doesn't work!!
I haven't been able to get it to a good consistency again. It still just breaks apart which makes it pretty impossible to use!! Grrr  _________________
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mamma-P Beadoholic

Joined: 21 Jun 2007 Posts: 888 Location: Beside the seaside
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poledra Busy Beader


Joined: 15 Feb 2008 Posts: 199
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Posted: Tue May 06, 2008 10:10 am Post subject: |
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When you have dried them before firing if you have a water brush, brush the dry clay over very lightly with the water brush and then dry again, you may need to do these a couple of time and then sand well before firing, it is surprising what you can remove with sanding.
I have used both PMC 3 and Art Silver Clay 650 (both normal and slow dry) and I have say that I prefer Art Silver Clay 650 slow dry it gives you more working time than the normal 650.
Jenny |
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elebelly Avid Beader


Joined: 22 Sep 2007 Posts: 322
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Posted: Tue May 06, 2008 10:21 am Post subject: |
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I ended up giving up with pmc. I don't really have the funds at the mo to keep experimenting with it (fimo is much cheaper and less risky £ wise! hee hee).
THe first time I used that batch of pmc I had no probs it was just the times after that I had issues. The texture of the pmc was never the same again. It was totally un-workable and the one piece I did manage to make with it didn't dry out properly despite leaving it for days in a non humid environment (it still bubbled when I fired it).
I think if I decide I do want to do it again then I just need to bite the bullet and have a lesson from someone who knows what they are doing rather than trying to pretend I do! Hee hee. _________________
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silverclayuk Beginning Beader

Joined: 01 Apr 2008 Posts: 44 Location: Corfe Castle, Dorset
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Posted: Tue May 06, 2008 10:55 pm Post subject: |
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Oh, don't give up - that is pure silver you having lying there!
When I have dry clay, I roll out into the flattest pancake you can imagine - superthin. Then I spread a large drop of water in the MIDDLE of the pancake, and wrap the clay up around the water. Ensure the water doesn't seep out, keep the outside more or less dry. Wrap up in double or triple layers of clingfilm (UK clingfilm is not very good quality!), and massage gently, just enough to squeeze the water into the clay. Check that the clingfilm has't broken and is still sealed, then cover with a wet kitchen tissue, and put back into the grip seal bag it came in.
Rest. You and the clay. Then look at it in a few hours, or tomorrow, and repeat the process if needed. This time, squeeze a little more in the cling film to ensure the water is smoothed into the clay.
What you want to do is get the water INSIDE the clay, rather than on the outside. Outside wet = lots of lost metal clay ending up smudged all over your fingers and the cling film.
Sometimes, if I'm in a rush, I "roll" the water into the pancake. So roll out flat, add LITTLE water, fold up and squeeze quickly using finger tips, roll out again, and repeat the process. The trick here is to add small amounts quickly.
You can do it!
Whilst we're on the topic - never let the clay dry out when you work with it. By spritzing or brushing on water and covering the clay with a little tent of clingfilm you can keep it moist for ages - as soon as you see it looking a little dry, mist or brush on water. If you see cracks smooth them out with water on your finger. This way you can extend the worktime immensly! The "tent-technique" is a great way to allow you stop for a breather, top up of coffe, or just to have a scream if you need to!
Petra
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elebelly Avid Beader


Joined: 22 Sep 2007 Posts: 322
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Posted: Tue May 06, 2008 11:30 pm Post subject: |
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Thanks for the message Petra. I have actually tried exactly what you have suggested and the clay was still a terrible consistency.
and even when I did manage to make some half decent (having left it to dry for days) it bubbled having been fired. And I definately did not over fire it.
I think I just need some lessons but no time or money at the moment!  _________________
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silverclayuk Beginning Beader

Joined: 01 Apr 2008 Posts: 44 Location: Corfe Castle, Dorset
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Posted: Wed May 07, 2008 12:03 am Post subject: |
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Hm, sounds strange. Which clay exactly is it you're using? Have you mixed anything else with it, like olive oil, slik, cool slip, badger balm, glycerine?
Sounds like possibly a case of getting too much oil or similar in the mix, which wouldn't evaporate and therefore might cause bubbling.
No metal clay on its own should bubble after drying for days.
Very strange. If you were nearer I'd ask you to bring it in and I'd have a look at it for you! |
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elebelly Avid Beader


Joined: 22 Sep 2007 Posts: 322
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Posted: Wed May 07, 2008 10:12 am Post subject: |
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yup I thought maybe I had too much badger balm on it...
I've tried leaching it out but that didn't work!
I think I just need a new lot of it!
I wish I was closer! I like Corfe! Unfortunately Norfolk is a little far! Hee hee
thanks for your help. _________________
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