View Single Post
  #33  
Old February 19th 15, 07:43 PM posted to rec.aviation.soaring
Benedict Smith
external usenet poster
 
Posts: 30
Default New Cobra trailer - - which top?

At 16:31 19 February 2015, Jonathan St. Cloud wrote:
On Thursday, February 19, 2015 at 2:47:28 AM UTC-8,
wrote=
:
On Wednesday, February 18, 2015 at 9:18:19 PM UTC-5, Jonathan St.

Cloud
w=
rote:
Last two trailers I got the fiberglass and had a local craftsman

insula=
te the interior.=20
=20
What did you use for the insulation?
=20
Kevin


My mechanic used engine firewall foam. Black flexible foam with a

metalic
=
coating on one side. We glued the black foam side to the inside of the
fib=
erglass top. As for how it looked after years in the sun, I always kept
th=
e top waxed, three to four times a year.

In the UK (and probably the other side of the pond) you can buy rolls of
thin
closed cell foam with a metalised plastic coating on one side, it is sold
to go
behind radiators in the home to stop the heat going out of the wall (a lot
of
us have solid stone or brick walls over here) it is quite tough and easy to

stick to most surfaces, at only around an eighth of an inch thick it won't

provide a lot of insulation, but should be enough to stop condensation in
an
aluminium or GRP top.
Just don't buy the cheaper version that is polystyrene foam with a foil
layer
as that damages too easily and soon looks tatty.
Ben.