Identify this sealant! - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 09-01-2013
Junior Member
 
Join Date: Jul 2006
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
thatwaschrislee is on a distinguished road
Identify this sealant!

I am rebedding the portlights on my Catalina 27 and am looking for suggestions on how to clean up the old sealant. I've removed most by scraping, but would like to get the residual as well. Acetone doesn't seem to do much. Photos attached.

Thanks in advance for any suggestions

Sorry, seems that I can't attach photos here! WTF!?

Last edited by thatwaschrislee; 09-01-2013 at 07:08 PM.
Reply With Quote Share with Facebook
  #2  
Old 09-01-2013
Senior Member
 
Join Date: Aug 2011
Posts: 161
Thanks: 0
Thanked 4 Times in 4 Posts
Rep Power: 4
engineer_sailor is on a distinguished road
Identify this sealant!

The sealant on my 1985 Cat 27 was some black sealant (note that I have the acrylic windows with no metal frame). I removed most of it by scraping with a flat blade screwdriver and then sanding the remainder. I tried to avoid using solvents as to not mess up the new seal. Dow 795 was great for rebedding. I have pictures somewhere and will try to link/post.

Josh
Reply With Quote Share with Facebook
  #3  
Old 09-01-2013
Junior Member
 
Join Date: Jul 2006
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
thatwaschrislee is on a distinguished road
Re: Identify this sealant!

Dow 795 is a silicone. Is this recommended for glass? I was planning on a polysulfide but am new to this whole thing...
Reply With Quote Share with Facebook
  #4  
Old 09-01-2013
Senior Member
 
Join Date: Aug 2011
Posts: 161
Thanks: 0
Thanked 4 Times in 4 Posts
Rep Power: 4
engineer_sailor is on a distinguished road
Identify this sealant!

Yes Dow 795 is a silicone, but not to be confused with or replaced by other types of silicone. Dow 795 is specifically made for structural glazing and weatherproofing applications. Also made to withstand exposure to weather and temp variations. I sure other adhesive manufacturers produce comparable products but I'm not sure what they are and haven't heard of their use marine applications.

Josh
Reply With Quote Share with Facebook
  #5  
Old 09-02-2013
Junior Member
 
Join Date: Jul 2012
Location: Lake Huron
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
jeepjeff is on a distinguished road
Re: Identify this sealant!

Toluene (toluol) will take it off but you better be VERY careful. It will eat your skin and sniffing it will alter your thoughts (why do you think they sniff aerosol paint). It is hard on plastics so use sparingly. Another option is to use a citrus based cleaner like citrisolv or similar. Has d-limonine (spell?) in it which is the agent that seems to work.

Dab either of these on a paper towel or cloth to moisten it and see what happens. Don't totally soak it. Finish the cleaned area off with Acetone to remove any residual solvent.
Reply With Quote Share with Facebook
  #6  
Old 09-04-2013
Junior Member
 
Join Date: Oct 2012
Posts: 15
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 0
svinshallah is on a distinguished road
Re: Identify this sealant!

A note on Dow Corning 795 caulk. It is great stuff, the only caulk that has held up on my aluminum frame/acrylic hatches. Make sure you pay attention to the expiration date. I had a tube that was 8 months past the expiration date and it WILL NOT harden. Fortunately the job will be easy to redo when I get a new batch.
Reply With Quote Share with Facebook
  #7  
Old 09-04-2013
Senior Member
 
Join Date: Dec 2012
Posts: 835
Thanks: 2
Thanked 21 Times in 17 Posts
Rep Power: 2
benesailor is on a distinguished road
Re: Identify this sealant!

i have used clear LEXEL (made by Sashco) with great success. 400% the contraction rate of silicone.

Fantastic stuff; i won't use silicone for anything. I've seen to many failures.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
anaerobic sealant? birdlives Diesel 2 07-27-2013 04:26 PM
Sealant recomendation jarcher Gear & Maintenance 12 06-04-2012 08:34 PM
Which sealant? copacabana Gear & Maintenance 18 09-27-2010 04:53 PM
which sealant to use LookingForCruiser Gear & Maintenance 5 07-09-2009 08:18 AM
What Sealant To Use? 1970Columbia34 Gear & Maintenance 9 11-17-2006 07:44 PM


All times are GMT -4. The time now is 05:22 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.