Thank you fellas for your comments.
Dave S, I take your point that the UV is a serious matter and that is the
reason for my reply to Roger as follows:-
Roger, I put a lot of laminated glass in the front extension of our house -
to get the plastic layer in between the 2 layers of glass. That is the part
that keeps out the UV.
Fred F, I intend taking your advice and forget about using any White pigment
in the epoxy itself.
Thank you all for your inputs.
Sincerely
JR (Bob) Gowing in Oz Kit 327
----- Original Message -----
From: "Dave Simpson" <davesimpson@londonweb.net>
Subject: Re: Use of White Pigment with Ampreg 20
> Bob,
>
> At work, a sub-contractor used white pigment in the epoxy/glass lay up for
a
> very large radome mounting ring (3m dia.) for a microwave test site. The
> rig has been completely outdoors for almost 4 years now and shows no sign
of
> UV degradation. It also has a blue foam base. The laminate was much
> thicker that our Europas but the environmental exposure was more severe
too.
>
> Dave Simpson
>
> ----- Original Message -----
> From: J R (Bob) Gowing <gowingjr@acr.net.au>
> Subject: Use of White Pigment with Ampreg 20
>
>
> > I have just read the pamphlet that came with my latest supply of Slow
> > Hardening Ampreg 20 and 2 year shelf life. It states that up to 10% by
> > volume of SP epoxy pignents can be added to the resin component and then
> > this mix can be combined in the same old weight ratio of 100:25.
> >
> > It may be that using the available white pigment in the finishing phase
> > might reduce the amount of paint needed for satisfactory cover and UV
> > protection.
> >
> > Has anyone something useful to report about using SP white pigment in
the
> > mix to finish their wings?
> >
> > JR (Bob) gowing, Kit 327 in Oz.
> >
> >
>
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