X-Virus-Scanned: clean according to Sophos on Logan.com
X-SpamCatcher-Score:   1 [X]
Return-Path: <marv@lancaironline.net>
Received: from [66.174.79.230] (account marv@lancaironline.net)
  by logan.com (CommuniGate Pro WEBUSER 5.1.4)
  with HTTP id 1726733 for lml@lancaironline.net; Sun, 31 Dec 2006 01:45:24 -0500
From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: Plexiglas - repair of scratches
To: lml
X-Mailer: CommuniGate Pro WebUser v5.1.4
Date: Sun, 31 Dec 2006 01:45:24 -0500
Message-ID: <web-1726733@logan.com>
In-Reply-To: <910338.23227.qm@web37403.mail.mud.yahoo.com>
References: <910338.23227.qm@web37403.mail.mud.yahoo.com>
MIME-Version: 1.0
Content-Type: text/plain;charset="iso-8859-1";format="flowed"
Content-Transfer-Encoding: 8bit

Posted for mike reinath <n3602m@yahoo.com>:

  <<Can any of you point me to instructions/ tutorials
  that might guide my efforts in removing fish-eyes or
  otherwise restoring clarity to Plexiglas?>>
  
  Greg,
  
  The surface of the Plexiglas can be vapor polished
  with methelyene chloride. This is a procedure that
  takes some practice. You have to sand out the
  scratches with progressively finer paper until you get
  to 2000 grit. You have to make sure that you get all
  the scratches sanded out each time you go to a finer
  grit. Once the surface is wet sanded to 2000 grit, you
  are ready for the vapor polishing. The methelyene
  chloride is brought to a slow boil in a water bath.
  You use a flexible hose to direct the vapor onto the
  surface. The hose end is held about an inch or two
  from the surface. With the methelyene chloride at a
  slow boil and using a 1/2-inch hose, it only takes a
  couple of seconds for the surface to polish out. You
  have to keep the hose moving.
  
  I have not done this on a canopy, but I have done it
  to Plexiglas windows we use in the wind tunnels at
  work. If you try it, practice first, and don't breathe
  the vapor.
  
  Mike Reinath
  LNC2 360 at 720 hrs TT
  San Jose, CA