Bedding Deck Hardware With Butyl Tape - Page 21 - SailNet Community
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post #201 of 398 Old 08-07-2012
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Re: Bedding Deck Hardware With Butyl Tape

We just bought 2 rolls! thanks for inspiring my wife to get started in the re-fit of our boat!

What would you suggest when re-bedding lexan windows?
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post #202 of 398 Old 08-08-2012 Thread Starter
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Re: Bedding Deck Hardware With Butyl Tape

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Originally Posted by meljabro3 View Post
We just bought 2 rolls! thanks for inspiring my wife to get started in the re-fit of our boat!

What would you suggest when re-bedding lexan windows?
If not through bolted butyl used as a shim the Dow 795 or Sika 295UV (with special primer) used as the "bond". I run butyl around the inside edge and the sealant the outer edge. The butyl makes a perfect shim for the sealant and also acts as a back up seal..

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post #203 of 398 Old 08-08-2012
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Re: Bedding Deck Hardware With Butyl Tape

Still waiting for my new windows. Like meljabro describes below "are lexan plastic bolted over cutouts. There aren't any frames or anything, just the lexan".

They are thru bolted with barrel nuts likes these:
Beckson Barrel Nut

1. I was going to just use the butyl tape. Do I need to use a 2nd sealant as well?
2. are there better screws than the barrel nuts that I should use? Should I use bolts with nuts and washers instead? There is not a lot of room on the inside for large washers. Too large and the washer would extend into the window cutout area.

Thanks.

Last edited by i_amcdn; 08-09-2012 at 04:02 PM. Reason: expanded description of window
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post #204 of 398 Old 08-08-2012
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Re: Bedding Deck Hardware With Butyl Tape

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Originally Posted by Maine Sail View Post
If not through bolted butyl used as a shim the Dow 795 or Sika 295UV (with special primer) used as the "bond". I run butyl around the inside edge and the sealant the outer edge. The butyl makes a perfect shim for the sealant and also acts as a back up seal..
Actually I'm thinking that they're called deadlights? I'm not sure though.
My windows are lexan plastic bolted over cutouts. There aren't any frames or anything, just the lexan
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post #205 of 398 Old 08-09-2012
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Re: Bedding Deck Hardware With Butyl Tape

Pics of my Edel 22 window cutouts after lexan was pried off.

You can see that the bottom holes were drilled a tad too close to the edge.

I should probably have ordered the new ones non-drilled and created new holes in new locations but the new lexan is coming drilled with the same holes as the old ones.

Do I need sealant in addition to the butyl tape?

Thanks
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post #206 of 398 Old 08-31-2012
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Re: Bedding Deck Hardware With Butyl Tape

Thanks for all the info in this thread. I recently removed teak handrails to refinish and rebed. I was deciding on whether to use butyl or lifecaulk for rebeding. Looks like I might go with the butyl. Lots of good info here.
Thanks again.

Daniel
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post #207 of 398 Old 09-02-2012
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Re: Bedding Deck Hardware With Butyl Tape

thanks have a rebedding project coming and i will use this info
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post #208 of 398 Old 09-02-2012
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Bedding Deck Hardware With Butyl Tape

I am very interested in the advice on resealing fixed ports that are attached with screws all around with no frame. Can I just use butyl or do I need to us it in combination a sealant?
Thanks
DaveM
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post #209 of 398 Old 09-02-2012
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Re: Bedding Deck Hardware With Butyl Tape

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Originally Posted by dsmauney View Post
I am very interested in the advice on resealing fixed ports that are attached with screws all around with no frame. Can I just use butyl or do I need to us it in combination a sealant?
Thanks
DaveM
Do you mean they are just plexiglass or lexan without frames? If so I would use an adhesive like Dow 795.

Brian
Living aboard in Victoria Harbour
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post #210 of 398 Old 09-02-2012
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Bedding Deck Hardware With Butyl Tape

Yes Mitiempo that is common for fixed lights with O'Day.
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