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Author Topic: Polyclay over paper mâché. Tips needed please.  (Read 3271 times)

Welshtotty

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Polyclay over paper mâché. Tips needed please.
« on: January 27, 2013, 04:23:19 PM »
I thought I'd experiment (yeah I know it's my middle name at the mo!) and I bought a paper mâché egg to cover with polyclay. So I set to it with a little bit of liquid Sculpey on the egg covered with a thin sheet of black clay then on that lots of millefiori cane slices, smoothed out. It looked pretty before it went in the oven. It came out looking like it had warts! Lol lumpy air filled knobbly bits randomly over it, but more on the bottom of it (I rested it in a tealight holder upright to bake)

So what did I do wrong? What can I do to fix it? What can I do next time so it doesn't happen again? Speak to me oh wise folk......  ;)
Abbie, in deepest darkest Newport, Wales.....
https://www.facebook.com/AderynJewellery

ejralph

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Re: Polyclay over paper mâché. Tips needed please.
« Reply #1 on: January 27, 2013, 05:19:16 PM »
Did you leave a hole anywhere at the bottom for the air to escape? That's usually a must for hollow objects.

ALso, did you bake the scrap clay layer first? that can help

Aside from all that, you might just find the papier mache is expelling gas or other oozy stuff from its own glues and whatnot.

If I am trying to cover something with clay, I will bake it on its own first to see how it handles the heat and give any nasties a chance to escape. Then I cover and bake a layer of scrap clay, then add the decorations afterwards. That way you don't waste too much time if it turns out to not be oven-happy at any stage of the game

Emma
Emma from Sunny Sussex, UK
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Welshtotty

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Re: Polyclay over paper mâché. Tips needed please.
« Reply #2 on: January 27, 2013, 06:27:44 PM »
Thanks Emma, fab advice as always!

No I didn't leave a hole and I didn't bake the base colour first.....I shall try that next time. Makes perfect sense now you've told me lol.
Abbie, in deepest darkest Newport, Wales.....
https://www.facebook.com/AderynJewellery

Bev

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Re: Polyclay over paper mâché. Tips needed please.
« Reply #3 on: January 27, 2013, 06:55:28 PM »
Don't mess around - get a real egg, blow it & cover that  ;) No nasty gasses  ;D ;D ;D

I got 6 bantam eggs from my partner's brother & had great fun covering them  :) :)

Peter

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Re: Polyclay over paper mâché. Tips needed please.
« Reply #4 on: January 27, 2013, 07:13:40 PM »
Quote
I got 6 bantam eggs from my partner's brother

Pfst!!   :D :D :D :D

Welshtotty

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Re: Polyclay over paper mâché. Tips needed please.
« Reply #5 on: January 27, 2013, 07:40:35 PM »
This is a big egg....kinda 5 times the size of a hens egg!
Abbie, in deepest darkest Newport, Wales.....
https://www.facebook.com/AderynJewellery

Bev

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Re: Polyclay over paper mâché. Tips needed please.
« Reply #6 on: January 27, 2013, 10:21:03 PM »
Quote
I got 6 bantam eggs from my partner's brother

Pfst!!   :D :D :D :D
::) ::) ::) ::) Think before typing!!!!! (especially if Peter's about)  ;D ;D ;D ;D

ejralph

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Re: Polyclay over paper mâché. Tips needed please.
« Reply #7 on: January 27, 2013, 10:29:42 PM »
 :o
Emma from Sunny Sussex, UK
www.ejrbeads.co.uk Projects, articles, bead galleries & more
www.ejrbeads.co.uk/shop Art beads, clay & jewellery supplies