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A plastic dilemma

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briana(at)xtra.co.nz
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Posted: Sat Apr 30, 2011 6:44 pm Post subject: A plastic dilemma

Ok, it's nothing to do with a Pulsar, but some of the Gurus here might just know the answer - - 



I've made nice little aluminium shrouds for the wing/fuselage gaps for my "other" aeroplane - - the 1926 Flitzer. Managed to find some offcuts from a repair shop, of just the right gauge. The aluminium has protective plastic material [very light grey colour] on both surfaces. Normally this protective coating is pretty easy to peel off, leaving a nice clean and shiny surface underneath. The trouble is, these offcuts had been sitting around for quite a long time. It seems that the plastic that was more exposed to light has become, well, less plastic, more brittle, and the adhesive seems to have a tighter grip. So getting the plastic layer off now is an issue.



Is there some way of rejuvenating the plastic to restore its suppleness and tensile strength, or some way of defeating the adhesive bond, without making a total mess.



Suggestions welcomed.



Brian

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mparkhurst1(at)cox.net
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Posted: Sat Apr 30, 2011 6:57 pm Post subject: A plastic dilemma

As an experiment you might try a drain cleaner called "Plumbers Helper".  It 

works to take the OLD paper off Plexiglas sheets.



PS,  I still have a forward canopy slide pin if anyone needs one.



Max



 	  Quote: 	
		  

 Is there some way of rejuvenating the plastic to restore its suppleness 

 and tensile strength, or some way of defeating the adhesive bond, without 

 making a total mess.



 Suggestions welcomed.



 Brian

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barryjedwards(at)lineone.
Guest

Posted: Sat Apr 30, 2011 10:26 pm Post subject: A plastic dilemma

Have you tried some heat? This has worked for me  using a hair drier to softener the plastic and make the glue more pliable  again.

  

 Barry

 G-XPXP 912 Taildragger UK

 [quote]   ---

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leubanks(at)sunflower.com
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Posted: Mon May 02, 2011 11:16 am Post subject: A plastic dilemma

I finally found an ancient piece of plexiglass  that was so old that the paper and  glue protection  that the factory  had applied could not be peeled off without tearing. Dipped it into some boiling  water for just a few seconds and it came right off. Might work for you  too?

 Larry

   [quote][b]

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