[NSRCA-discussion] Epoxy Removal

[wgalligan]

Grey I just knew you could come up with the final answer.
You may proceed to the next level.

WG

  ----- Original Message ----- 
  From: Gray E Fowler 
  To: NSRCA Mailing List 
  Sent: Thursday, November 01, 2007 9:28 AM
  Subject: Re: [NSRCA-discussion] Epoxy Removal



  On cured epoxy solvent will not work....before it damages your covering. Most likely you are using an epoxy that you bought at a hobby store or similar. At about 130F it will be above its glass transistion temperature, which means it will become rubbery and lose much of its adhesive characteristics. Take a covering iron, heat the epoxy directly with the iron and while it is hot you should be able to remove the epoxy much easier with your razor blade. Epoxy is a  "thermoset"  reaction so contrary to most peoples opinion, it will never melt nor dissolve with heat or solvent. 



  Gray Fowler
  Senior Principal Chemical Engineer
  Radomes and Specialty Apertures
  Technical Staff Composites Engineering
  Raytheon 


        "Ken Velez" <kvelez at comcast.net> 
        Sent by: nsrca-discussion-bounces at lists.nsrca.org 
        10/31/2007 11:06 PM Please respond to
              NSRCA Mailing List <nsrca-discussion at lists.nsrca.org> 


       To "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>  
              cc  
              Subject [NSRCA-discussion] Epoxy Removal 

              

       



  Hello all,

  Is there any way posible to remove old dried epoxy from covering without 
  damaging it besides trying to pick it of with a single edge blade or #11 
  blade. It doesn't stick to covering like it does in wood but the blade 
  leaves scratch marks on the covering. Any ideas, anybody???

  Thanks,

  Ken 


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