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 Post subject: Gluing plastic on polystyrene
PostPosted: Thu May 14, 2015 4:59 pm 
Ringwraith
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What is a good methdod for gluing a plastic piece on polystyrene? I'm attaching a plastic statue from the Ruins of Middle Earth set to my Weathertop, which I'm building of the blue/pink styrene. Superglue would melt the blue styrene and I'm not sure how strongly PVA would bond with plastic.

-- Pasi
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 Post subject: Re: Gluing plastic on polystyrene
PostPosted: Thu May 14, 2015 5:06 pm 
Kinsman
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I would use PVA glue..straight from the bottle..( have used it)
and let it set for at least 24hrs..it wont come off easily then
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 Post subject: Re: Gluing plastic on polystyrene
PostPosted: Thu May 14, 2015 5:25 pm 
Ringwraith
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Yeh PVA is pretty strong.

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 Post subject: Re: Gluing plastic on polystyrene
PostPosted: Thu May 14, 2015 5:53 pm 
Elven Elder
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Sometimes worth pinning the statue first. Use superglue to set the pin in the statue and ova for the other part in the styrene.

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 Post subject: Re: Gluing plastic on polystyrene
PostPosted: Thu May 14, 2015 7:26 pm 
Elven Elder
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Liquid nails for small projects.

http://www.amazon.com/Liquid-Nails-LN70 ... B000BQYHSY


PVA is over rated for foam. It takes a long time to dry and does not stick well to plastic.

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 Post subject: Re: Gluing plastic on polystyrene
PostPosted: Thu May 14, 2015 11:40 pm 
Elven Warrior
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I've used carpenter's glue successfully. Score little hash marks in both surfaces to help the glue adhere better. My favorite brand it Gorilla Glue.

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 Post subject: Re: Gluing plastic on polystyrene
PostPosted: Fri May 15, 2015 2:14 am 
Loremaster
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the problem with pva and foam is that pva needs air contact to dry, and the foam does not allow that very well. Thus something like liquid nails that is a chemical reaction that does not require air to dry works better.
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 Post subject: Re: Gluing plastic on polystyrene
PostPosted: Sun May 17, 2015 11:22 am 
Ringwraith
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Thanks for the advice, everyone. I ended up pinning the statue with a wooden cocktail stick - superglue between wood and plastic and PVA between wood and foam, plus a bit of PVA on other contact points.

I'll have to check the Liquid Nails next time I go to the hardware store or craft store. We don't probably have that brand here, but hopefully something similar. I had heard someone talks about liquid nails before but I had no idea what that was. Looks very useful for hobby projects.

-- Pasi
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 Post subject: Re: Gluing plastic on polystyrene
PostPosted: Sun May 17, 2015 11:26 am 
Ringwraith
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There are a host of advertisements for a variety of Liquid Nails products. Some of them are quite funny:
https://www.youtube.com/watch?v=avCocTC_5uo

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