I am not so sure people are 'resistant' to using Plexus to rebed
portlights as much as there are other products today that can possibly
do the job as well and are easier to use. Plexus requires a special
'gun' to apply the 2-part adhesive which is not readily available to all.
And think about how long a windshield remains in place in our
automobiles. And the windshields are considered a 'structural'
component on vehicles, at least on my Acura TL it is. Last year, I
replaced my car windshield and I asked the guys what adhesive they were
using to rebed it.......turns out is was a Sikaflex product....the auto
glass shop said it was very similar to Sikaflex 295UV except it had a
much faster cure time (hours instead of days).....understandable.
The reason my portlights were leaking was because the original Plexus
had dried out....it was as hard as resin when I was removing it. As
with my car windshiled, I am hoping the Sikaflex 295UV doesn't do that
on my portlights.
I kept a 'step by step' version of my 2010 portlight project if anyone
wants it.
Bob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2013/09/06 7:38 PM, Bill Bina wrote:
I've never really understood why so many people are resistant to using
Plexus to rebed the portlights on their C&C. The people who designed
the boat didn't pick Plexus out of a hat. They did their homework, and
voted for something they thought was appropriate. TIME has proven that
Plexus was a very good choice. No other alternate has ever been tested
as long, or on as many C&C's as Plexus, although I've read many
reports of failures trying something else just to save a few bucks.
Plexus worked well, and has held up as well or better than any
adhesive could be expected to hold up. If you have an adhesive/sealant
that has lasted 25 years or more ON A BOAT, why on earth would you do
all the work of removal & installation with anything else? Seems like
foolishness to mess with obvious success. Same goes for using Butyl
for the hull/deck joint. It is time-proven more thoroughly than any
other alternative. If Plexus and Butyl were known to be problematic,
or short-lived, I could understand looking for an improvement.
Bill Bina
On 9/6/2013 6:13 PM, Brent Driedger wrote:
Pulling off the old windows can often be the worst part. Unless they
are falling out already, expect some gelcoat to come with it. Repair
this properly so the adhesive can grip.
Plexus was my choice and the agent rented the gun too. It's not
cheap. Stuff at $35 bucks a cartridge and it took 1.7 to do my 27-5s
long windows.
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