It's my understanding that "carbon black" is what adds to the UV resistance of polyethylene solar pool heating panels. I'm not a materials engineer by any means, but perhaps there is some link.
Between Chemlink and Geocel, there is usually a color that is a close enough match for my liking, but it would be nice to know if there is a good clear option. Jason Szumlanski On Tue, Aug 11, 2015 at 2:59 PM, William Dorsett <wmdors...@sbcglobal.net> wrote: > When we used zip ties for managing wire, we were advised to buy the black > ones because the pigment made them more impervious to UV. It might work the > same way with clear vers opaque sealing polymers. Those with the most > pigment held up best. > > > > Bill Dorsett > > Manhattan, KS > > > > *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On > Behalf Of *August Goers > *Sent:* Monday, August 10, 2015 4:53 PM > *To:* RE-wrenches > *Subject:* [RE-wrenches] clear sealant recommendations > > > > Hi Wrenches, > > > > For the most part we are using Chemlink M1 sealant for to seal our rooftop > penetrations. It hasn’t let us down yet. > > > > M1 is a available in several opaque colors and grey is the most common. > Sometimes we want a good quality clear sealant to put around conduit > fittings, where our conduit enters buildings, etc. We used Geocell 2300 in > the past and I don’t have anything bad to say to it but our current > supplier doesn’t carry Geocell products. More recently we’ve tried Chemlink > Clear sealant but I’ve already seen signs that it doesn’t hold up well in > the elements – it seems to peel off the surface it was installed on and > turn brown relatively fast. > > > > Does anyone have a good multipurpose clear sealant that they like? > > > > Best, > > > > August > > > > >
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