The gold standard for aircraft canopies is a product called "Micro-mesh".
http://www.aircraftspruce.com/catalog/cspages/micromeshstd.php
A short video (8 minute) tutorial on use of this product on a canopy is on
the EAA website;
http://www.eaavideo.org/video.aspx?v=665778628001
Disclaimer, I have no experience using this on auto headlight covers.
Fortunately my '64 B does not have a plastic degradation problem (maybe
more of a metal degradation problem :-)
Bob
Message: 1
Date: Wed, 1 Feb 2012 08:38:45 -0000
From: "Paul Hunt" <paul.hunt1@blueyonder.co.uk>
To: <MG-MGB@yahoogroups.com>, "MG List" <mgs@autox.team.net>
Subject: Re: [Mgs] [MG-MGB] Plastic Headlight Restoration
Message-ID: <426B00D571FB4942A18CB595CAFB8675@paul>
Content-Type: text/plain; format=flowed; charset="UTF-8";
reply-type=original
My ZS lenses are going a bit cloudy. I tried body paint renovator and
polish on a corner but it made no difference. Enquired elsewhere and got
the following back, haven't tried it yet:
"I found a product called "Plexus" at a marine supply store that is used to
remove the milky film on perspex - so I thought Why not give it a try on
the
"fogged" ZR headlamps - worked a treat, but it did take a couple of
applications over a few days. The same product is used on aircraft
canopies."
----- Original Message -----
Has anybody had any kind of experience with restoring plastic headlight
lenses? Ibve seen all kinds of promises, but no real testimonials.
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