Proper adhesive/sealer for Lexan - SailNet Community
 11Likes
Reply
 
LinkBack Thread Tools
post #1 of 34 Old 12-13-2004 Thread Starter
Junior Member
 
Join Date: Nov 2004
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Proper adhesive/sealer for Lexan

Im seriously considering replacing my ports with fixed lexan sheet , and I need to know the proper adhesive/sealer , I read that 4200/5200 , Boatlife is not advised .
RoadTool is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 34 Old 12-13-2004
Senior Member
 
DelmarRey's Avatar
 
Join Date: Aug 2001
Posts: 258
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 15
 
Proper adhesive/sealer for Lexan

The best sealer I''ve found for lexan IS THE boatLIFE--- Life Seal Sealant #1170. The stuff is real messy, but that''s what makes it stick so good. If you can manage to work it in without touching it with your fingers it''ll come out great. Even if you use rubber gloves, The stuff doesn''t want to come off of the gloves and gets everywhere. Once it cures it stays fairly soft, exactly what you want for a flexing hull/deck.
It works good on teak too....................._/)
DelmarRey is offline  
Quote Quick Reply Share with Facebook
post #3 of 34 Old 12-13-2004 Thread Starter
Junior Member
 
Join Date: Nov 2004
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Proper adhesive/sealer for Lexan

But is Life Caulk another polysulfide thats not recommended for plastics/lexan?
RoadTool is offline  
Quote Quick Reply Share with Facebook
post #4 of 34 Old 12-13-2004
Senior Member
 
DelmarRey's Avatar
 
Join Date: Aug 2001
Posts: 258
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 15
 
Proper adhesive/sealer for Lexan

Corrected my first post NO on the Life Seal Sealant!
DelmarRey is offline  
Quote Quick Reply Share with Facebook
post #5 of 34 Old 12-14-2004
Senior Member
 
Join Date: Feb 2003
Location: New England USA
Posts: 261
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 14
 
Proper adhesive/sealer for Lexan

The best product I have found for Lexan type lenses/windows is Dow Corning 795 construction adhesive.

The caveats are that it takes 7 days to set up... don''t be in a hurry, make sure you prep well, follow the instructions, clean up immediately.

This is what the "Pro''s" use when re-glazing ports, hatches, cabin lights.
Silmaril is offline  
Quote Quick Reply Share with Facebook
post #6 of 34 Old 12-03-2013
Don't give up the ship!
 
Join Date: Nov 2012
Location: Stonington, CT
Posts: 115
Thanks: 1
Thanked 2 Times in 2 Posts
Rep Power: 4
 
Re: Proper adhesive/sealer for Lexan

I had redone my hatch with 5200 last year, it leaks after just one season, when I step on the lexan, I can see where it is no longer bonding to the lexan.
Definetly will be redoing the hatch in the spring and trying out the 795.
Though the experience wasn't a total loss, I did manage to learn how to handle a lot of goopy stuff and not get it all over the place.
Essentially, I taped up the lexan everywhere the 'glue wasn't supposed to be and taped up the alluminum frame ....everywhere the "glue " wasn't supposed to bond to.
Put a lot of goop on the frame, pushed the glass down, clean all the stuff that oozed out on top, went down below and cleaned up all the stuuf down there, waited maybe an hour or so and started peeling of the tape below, first the frame, then the glass.
Came out clean, looks professional, but using the wrong stuff, it leaks now.
Still, it was good all season the lexan I can save, the frame I'll clean and do it all again in the spring.
Adele-H is offline  
Quote Quick Reply Share with Facebook
post #7 of 34 Old 12-03-2013
Courtney the Dancer
 
jrd22's Avatar
 
Join Date: Nov 2000
Location: San Juan Islands., WA, USA
Posts: 3,923
Thanks: 4
Thanked 26 Times in 25 Posts
Rep Power: 16
 
Re: Proper adhesive/sealer for Lexan

I second the 795, re-did the pilothouse windows in our boat (Lexan) a couple of years ago, no leaks at all (PNW). I sanded the Lexan in the areas that were going to be covered/sealed in order to give the sealant something to "grab". Faster (Ron) here on SN recommended the DC 795 and I'm glad he did, good stuff.

John
SV Laurie Anne

1988 Brewer 40 Pilothouse

jrd22 is offline  
Quote Quick Reply Share with Facebook
post #8 of 34 Old 12-04-2013
Jnoiur Mebemr
 
StormBay's Avatar
 
Join Date: Sep 2010
Location: Bahamas
Posts: 181
Thanks: 1
Thanked 11 Times in 10 Posts
Rep Power: 6
 
Re: Proper adhesive/sealer for Lexan

Third vote for 795. Used it on our last boat and never had a problem.

Yu & Frank

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
StormBay is offline  
Quote Quick Reply Share with Facebook
post #9 of 34 Old 12-04-2013
Remember you're a womble
 
PaulinVictoria's Avatar
 
Join Date: Aug 2009
Location: Sidney, BC
Posts: 2,277
Thanks: 11
Thanked 63 Times in 61 Posts
Rep Power: 7
 
Re: Proper adhesive/sealer for Lexan

I bought some to use on my last boat, then sold it before I got a chance to. Seemed like the best option to me

Orange Crush
1974 C&C27 MkII

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PaulinVictoria is offline  
Quote Quick Reply Share with Facebook
post #10 of 34 Old 12-04-2013
Senior Member
 
mitiempo's Avatar
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,740
Thanks: 0
Thanked 108 Times in 99 Posts
Rep Power: 9
   
Re: Proper adhesive/sealer for Lexan

Dow 795, GE SG-4000, or Sika Flex 295 UV with primer are the best choices.
The details are here: Which Sealants To Use
Select Plastics is the largest marine hatch repair facility in the world.

Adele
Lexan is not the best choice for a hatch unless it was lexan originally. Only Bomar hatches with the metal cross beams use lexan. Every other hatch manufacturer - Lewmar, Bomar, etc all use cast acrylic for the very reason you found. Lexan deflects when stepped on and the seal will break - regardless of sealant type. Cast acrylic is also much more scratch resistant and will last years without crazing, lexan crazes in a few years.

Roadtool
If you have not yet purchased the lexan use cast acrylic (plexiglass) instead for the reasons above. Lots of good information at the link posted.
sony2000 likes this.

Brian
Living aboard in Victoria Harbour
mitiempo is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Another proper course question langousta Racing 11 12-27-2005 05:33 AM
yet more proper course questions dpboatnut Racing 7 09-29-2004 07:41 AM
Proper Course dmurcott Racing 6 06-14-2004 06:56 PM
Above Proper Course MemphisMud General Discussion (sailing related) 4 10-15-2002 09:43 AM
What is the proper way to christen a boat hervel General Discussion (sailing related) 0 09-28-2001 05:32 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome