i'm at wits end. when i got the boat it had plexiglass ports/windows
fastened with ss screws every 4 inches and bedded with what was
probably walmart grade silicone caulk. they leaked like a sieve. i
hate silicone, it doesn't adhere to hardly anything and once you've
used it, nothing else will stick to the surface either.
so i used 101 to rebed all the windows (i know, i've since read that
polysulfide is not compatible with acrylic/lexan). i think i got a bad
case of 101 'cause the stuff has never vulcanized to my liking, kind
of remaining a semi rubbery puttylike substance. is that normal?
anyway, half of the rebedded windows leaked. so i tried the new 4200
stuff. that was the worst yet. brand new plastic literally fell off!
don't really want to use 5200. anyone had any good luck with anything?
one of the new hybrid silicones?
thanks for the help in advance
stephen scheiding

On Fri, 24 Sep 2004 06:23:53 GMT, (Stephen Scheiding)
wrote:

i'm at wits end. when i got the boat it had plexiglass ports/windows
fastened with ss screws every 4 inches and bedded with what was
probably walmart grade silicone caulk. they leaked like a sieve. i
hate silicone, it doesn't adhere to hardly anything and once you've
used it, nothing else will stick to the surface either.
so i used 101 to rebed all the windows (i know, i've since read that
polysulfide is not compatible with acrylic/lexan). i think i got a bad
case of 101 'cause the stuff has never vulcanized to my liking, kind
of remaining a semi rubbery puttylike substance. is that normal?
anyway, half of the rebedded windows leaked. so i tried the new 4200
stuff. that was the worst yet. brand new plastic literally fell off!
don't really want to use 5200. anyone had any good luck with anything?
one of the new hybrid silicones?
thanks for the help in advance
stephen scheiding

Hi,

Try using sealant with mold release agent and gently tighten the
screws to create a gasket, then remove, coat with non setting gasket
compound and tighten it down the normal amount.

cheers,
Pete.

Yea, polysulfides will cure in about 7 days to a pliable gasket, but aren't
that great for bedding windows.

The two best things for glazing are GE Ultraglaze SSG4000 or Silpruf. You
can look them up on the web (I don't have the address handy) but will have
to buy them from a local glass company like Binswanger or others.

You can look up the caulks at http://www.crlaurence.com. They have
EVERYTHING for glass and glazing, but again, won't sell direct.

--


Keith
__
You have the right to remain silent. Anything you say will be misquoted and
used against you.
"Stephen Scheiding" wrote in message
...
i'm at wits end. when i got the boat it had plexiglass ports/windows
fastened with ss screws every 4 inches and bedded with what was
probably walmart grade silicone caulk. they leaked like a sieve. i
hate silicone, it doesn't adhere to hardly anything and once you've
used it, nothing else will stick to the surface either.
so i used 101 to rebed all the windows (i know, i've since read that
polysulfide is not compatible with acrylic/lexan). i think i got a bad
case of 101 'cause the stuff has never vulcanized to my liking, kind
of remaining a semi rubbery puttylike substance. is that normal?
anyway, half of the rebedded windows leaked. so i tried the new 4200
stuff. that was the worst yet. brand new plastic literally fell off!
don't really want to use 5200. anyone had any good luck with anything?
one of the new hybrid silicones?
thanks for the help in advance
stephen scheiding