Thru Hull bedding compound recommendations - 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 07-30-2010
Junior Member
 
Join Date: Jan 2007
Posts: 21
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
bigwalt is on a distinguished road
Thru Hull bedding compound recommendations

I am replacing all thru hull fittings in a 45' sailboat I am restoring. It is fiberglass with an airex core. What is the best bedding compund to use to seal up the fittings??
Reply With Quote Share with Facebook
  #2  
Old 07-30-2010
Senior Member
 
Join Date: Jul 2001
Posts: 1,174
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 13
k1vsk will become famous soon enough
The West Marine web site advisor has a good summary of adhesives, bedding compounds and sealants which should answer all your questions. About the only thing you will get most folks to agree on is to not use 3M 5200
Reply With Quote Share with Facebook
  #3  
Old 07-31-2010
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 6,981
Thanks: 0
Thanked 61 Times in 52 Posts
Rep Power: 7
mitiempo will become famous soon enough mitiempo will become famous soon enough
3M 4200 or Sikaflex 291 are good choices. Also best to remove the Airex around the cutout and replace it with thickened epoxy if this was not done originally as it should have been. This will prevent compression of the hull and eliminate water ingress into the core. While Airex cannot absorb moisture if present it can lead to delamination.
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Share with Facebook
  #4  
Old 08-01-2010
roline's Avatar
Cal 9.2 SilverSwan
 
Join Date: Jul 2000
Location: East Tennessee
Posts: 272
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 15
roline is on a distinguished road
Always, always, dig the soft coring out around any hole and fill with a thickened epoxy, top side or bottom side:
* To create a solid incompressible wall to prevent the loss of clamp load from the fasteners.
* To seal and protect the core from ingression that can lead to saturation and delamination.
* To unify the structure should you ever decide to replace or re-bed the hardware in the future.
* Reduces the dependency on the sealant selected to the structural soundness of the job.
__________________
Cal 9.2 #19 SilverSwan
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



All times are GMT -4. The time now is 03:23 PM.

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