> I wish to coat the surfaces with an optically reflective layer so as to p=
rovide concentrated solar energy at the focus.
> Ease of coatings and not much cost are rated ahead of efficiency - but hi=
gh efficiency is a welcome bonus.

When I was a kid Dad painted our house roof with an aluminium pain. This wa=
s a bit like iridescent paint, in that it was a clear paint (I think) with =
very fine aluminium in it.

I am wondering if there is a spray can of similar stuff available. I am sur=
e I have seen it somewhere, but cannot recall where, automotive touch-up pa=
int maybe?



--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.