Windows - really...

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Pgutierrez's picture
Joined: 5/14/12
Posts: 220
Windows - really...

Why should sailboat manufacturers use lexan type glass that crazed like crazy and not automotive quality glass that doesn’t craze? Is it the possible flex factor?  Can’t they just engineer that part of the boat to not flex?  Just asking...

peter g

2000 C36, MK2, Hull. #1897
wonderful, wonderful, wonderful ! ! !.   5 th Catalina



Chachere's picture
Joined: 10/27/10
Posts: 823

Not that this is  a direct answer,  but we had something like automotive glass in the original aluminum framed windows on our Mk1, and the leak factor was a PITA.   Replaced with frameless glued on acrylic windows about 5 years ago, no leaks, but they are more prone to scratching.    

Matthew Chachère
s/v ¡Que Chévere!
(Formerly 1985 C36 MKI #466 tall rig fin keel M25)
2006 Catalina Morgan 440 #30.
Homeported in eastern Long Island, NY

Joined: 2/13/20
Posts: 76

I don't think you would want real glass which is what automotive glass is.  I have an auto glass business, and when that stuff breaks ( all windows excepting the windshield) it will shatter into 5 billion pieces.  It could be as simple as a halyard getting loose and swinging into it, a mis-placed heavy step under way, a dropped tool etc.  You decide, ascratched or crazed piece of Lexan or a hole where a piece of glass once lived?  No thanks on glass.

David Lane
S/V Grace
88' Catalina 36'
Oxnard, Ca

Siler Starum's picture
Siler Starum
Joined: 4/20/18
Posts: 111

Technical spoken you can have good laminated glass panels, but these are quite expensive compared to Lexan.
I consider that for the business case the manufacturers are aiming for a good margin, high selling price and cheap to purchase / manufacur.

Durk Nijdam
Catalina 36MKII - 2001 / hullnr. 2013
Stavoren - Holland

pkeyser's picture
Joined: 5/18/13
Posts: 631

Our 1986 C30 main cabin side windows were glass in aluminum frames. The opening ports were all acrylic or Lexan. We had a 1982 Cape Dory- all the opening ports were glass set in bronze frames. can be done.....I'm sure more expensive designs than just plastic withou any frame.

Paul & Wendy Keyser
"First Light"
Rye NH
2005 C36 MKII #2257
Wing, M35B

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