[Public-list] Lexan or Acrylic ?

[Don Campbell]

Butyl rubber reacts chemically with acrylic to eat it away, and is not recommended
by the plastics people for use on acrylics.
Don

Tom Sutherland wrote:

> George,
>
> Thank you for this post! I will file it away for my next window project.
>
> Stephen,
>
> Thanks for the heads up about "butyl rubber". Is this what is used to
> mount auto windshields? If so it sounds like a pretty good idea. I for
> one have seen far more leaking port lights than I have windshields. Is
> it available in colors other that black? Or was that even an issue?
>
> tom s
> a30  412
>
> > George,
> >
> > Great job in documenting the port replacement. At the end of this document
> > you mention butyl rubber as an alternative, this is product we used and it
> > worked well. This application eliminated any sealant from being pushed out
> > onto the lexan and you can snug up the screws immediately. Also this product
> > is generally available from any good glass shop in your area.
> >
> > Stephen
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