EJR Beads

Author Topic: Sticky cernit  (Read 1609 times)

Kirsten

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Sticky cernit
« on: February 21, 2016, 04:46:56 PM »
I am asking for a friend:
She made buttons from Cernit - stored them in a plastic tackle box - after a while they turned sticky. She only used the Cernit, no paints, lacquers or anything.
Is anyone familiar with this happening, and/or have a possible explanation?
Thank you :)

MilleD

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Re: Sticky cernit
« Reply #1 on: February 21, 2016, 04:50:29 PM »
Hi Kirsten,

It's the type of plastic she is storing it in.  The stuff to use normally has a triangle and the number 5 inside it if it's compatible with polymer.  Usually the softer, milkier sort of plastic.

The clear brittle sort will end up being 'eaten' by the polymer and it will go all sticky.

Just re-read your post, were they cured and stored or raw?

Kirsten

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Re: Sticky cernit
« Reply #2 on: February 22, 2016, 12:33:34 PM »
It was cured. Sounds right, I'll pass this on - thank you!   :-*

MilleD

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Re: Sticky cernit
« Reply #3 on: February 22, 2016, 01:58:24 PM »
If it's cured properly, it really shouldn't react.

This info is useful:  http://thebluebottletree.com/polymer-clay-melt-plastic/


Kirsten

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Re: Sticky cernit
« Reply #4 on: February 22, 2016, 02:22:35 PM »
Excellent - I know and love Ginger's blog, so thorough and very useful.
Sounds reasonable that only the uncured clay would react with plastic.
Well,  I will pass the info onto my friend - I guess storing differently wouldn't hurt.
Thank you for your very helpful replies  :D