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Middle windshield, recomended sealants.

kingsley_oasis

Active member
Joined
Dec 2, 2014
Messages
178
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  1. OWNER - I own a Hatteras Yacht
Hatteras Model
61' COCKPIT MY (1981 - 1985)
Decided to tackle the leak in forward middle window. Looks to have been resealed in past as no foam between glass and frame like side fixed windows.

It looks like original sealant used was white butyl rubber between aluminum frame and house, which seemed to be in good shape. Black butyl rubber between glass and frame, with some type of caulk around edge of glass with a extruded rubber outer trim.

I remember some of the posts about this and think I would like to go back without the rubber trim if possible.
Looking for recommendations for sealing frame to house and then glass into frame?
The people that cut the glass say they would use DOW silicon structural glazing sealant for both joints that they use on frame less windows. Holding off for now on giving them the go ahead.
 
I believe Hatteras used 5200 between the frame and fiberglass. They used it for everything.
 
Don't like silicone as a caulk/adhesive for anything important.
Sikaflex 295 (or 295UV) with appropriate primer/etch.
There are some other Sika products from their auto glass offerings that will also work well.
Not sure what the right 3M product would be, they have a very extensive auto glass sealant/glue line up.

Also understand why various shops want to work with what they're familiar with too.
 

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