How do I remove 4200 from Lexan? - SailNet Community

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Old 07-19-2008
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How do I remove 4200 from Lexan?

One of my ace workers has left a half inch wide smear of 4200 around the edge of my new lexan portlights.

Any ideas on how to get the 4200 off the lexan without destroying it?
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Debond 2000 may work. How long has it been on the lexan ? There is also a 3m product, but I can't recall the name.
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It will have been on the lexan for about three months.
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I did some internet searching. Apparently Debond 2000 cannot be used on plastic or lexan.
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If you consider labor, it may be cheaper to replace the lexan. The debond was the first thing that came to me.
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Old 07-20-2008
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Did you try just rubbing back and forth on it with your finger, usually most caulks will lift off a slick surface when rubbed hard enough. I think anything strong enough to break down the caulk would probably damage the Lexan.
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Thanks Banshi,

I will give it a go when i get back there. This was the last thing we completed before I left on Friday and I had no time to play with it.
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kaakre...3M only lists mechanical means for removal after curing. Razor blades, putty knives and sanding. If you get most of it off with a blade you might try some very fine (400-600 grit) wet sanding for the remainder but try this on a small area first as the lexan is easily dmaged.
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Quote:
Originally Posted by camaraderie View Post
kaakre...3M only lists mechanical means for removal after curing. Razor blades, putty knives and sanding. If you get most of it off with a blade you might try some very fine (400-600 grit) wet sanding for the remainder but try this on a small area first as the lexan is easily dmaged.
I think almost any abrasives or tools are likely to leave marks in the LEXAN.
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