Jeff:
Quote from the SAIL magazine article referenced in the earlier post:
"*Sealant/Adhesive Choices*
Two products you should never use to bed plastic portlights are
polysulfide (Life-Calk, etc.), which attacks the plastic, and
polyurethane (3M 5200, etc.), which is attacked by the plastic. One
polyurethane, Sika 295 UV, can be used if you also apply a special
primer, but this is more complicated and more expensive."
I don't think it is more complicated....maybe more expensive because the
Sika Primer is expensive.....bizarre really....the Sika Primer will cost
more than the 295 you will need and you only need very little. Sika used
to sell small bottles of the primer (35 ml) which you would never use
all of it on a window job but now they only sell in much larger
containers....PITA.....ask around, someone always has some left over
they are willing to give to you.
I might have some but it is old......that's another thing with these
products......check the expiry date(s).
Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2015-04-22 11:05 AM, PME via CnC-List wrote:
Hi,
The procedure outlined by Don Casey in a Sail magazine is excellent.
To add to Casey’s article, I traced the old port and cut the material
slightly larger with a sabersaw. I then sanded
the edges down to final size with an orbital sander. This worked
easily and produced nice results.
I also found great prices for acrylic/lexan at eStreet Plastic. I
used 3M VHB tape and Dow 795 both which I purchased
from McMaster-Carr, and I sprayed the under-side, unmasked area with
Krylon Fusion.
Here is a link to the article.
http://www.sailmagazine.com/boatworks/replacing-fixed-portlights
On 2015-04-20 7:24 PM, Jeffrey Nelson via CnC-List wrote:
Given the amount of water dripping onto my galley table, re-caulking
isn't going to do it for long.
Take your windows out, take them to any place that deals with acrylic
and have them duplicate them...if you break your windows make a template
out of 1/4 plywood to take in.
Let me know if you come up with a good glue solution...I'm looking to
do mine again, as I apparently didn't use enough glue or clamping and
my windows have sprung out a bit...enabling water to get in...
Cheers,
Jeff
C&C30 Mk 1
Muir Caileag
-
Paul E.
1981 C&C 38 Landfall
S/V Johanna Rose
Carrabelle, FL
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