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changing color under UV?

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changing color under UV? [message #18296] Fri, 24 September 2010 17:04 UTC Go to next message
avatar tempusr35359_8972ea3585b  is currently offline tempusr35359_8972ea3585b
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Registered: February 2010
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I want to print a big scale architectural model that would be in the sun for a long time, does anyone has any experience with this?
Will the model turn yellow? It would be in the PA2200 SLS.



[Updated on: Sat, 25 September 2010 14:00 UTC]

Re: changing color when in UV? [message #18307 is a reply to message #18296 ] Fri, 24 September 2010 19:33 UTC Go to previous messageGo to next message
avatar virtox  is currently offline virtox
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Registered: August 2008
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I have several models in WSF which after months look yellow in comparison to freshly printed.
My guess, that it happens a lot faster in full sunlight.

Presumably this can be slowed down/stopped by applying a clear coating, but have not seen any real confirmation on this.

But it certainly helps against the porous nature of WSF which also might cause discoloration (from sigarette smoke and such)
WSF also gets dirty very quickly when handled. (absorbing skin grease)



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Re: changing color when in UV? [message #18310 is a reply to message #18307 ] Fri, 24 September 2010 20:22 UTC Go to previous message
avatar GHP  is currently offline GHP
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Registered: October 2009
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I haven't tried it, but I know Krylon makes a UV-resistant clear spray coating. If they have it in your area, it should probably be available in art or drafting-supply stores, or signage stores.

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