spray foam + inflatable boat = save it or kill it? - 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 > General Interest Forums > Gear & Maintenance
 Not a Member? 
  #1  
Old 07-13-2007
nor cal (frigid) member
 
Join Date: Jun 2006
Location: santa cruz
Posts: 33
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
piggybeach is on a distinguished road
spray foam + inflatable boat = save it or kill it?

my old metzler inflatable is still leaking and the fabric is pretty... crusty. i've applied copious amounts of various inflatable boat paints, glues, patches and unorthodox products including elastromeric paint and "barge" (contact) cement... yet she is still leaking faster than i am comfortable with. then i saw what appeared to be a "foam-filled" inflatable boat mentioned somewhere. is this a terrible idea?
Reply With Quote Share with Facebook
  #2  
Old 07-13-2007
danjarch's Avatar
Siren 17
 
Join Date: Jun 2007
Location: Grapevine TX
Posts: 1,782
Thanks: 0
Thanked 4 Times in 4 Posts
Rep Power: 7
danjarch will become famous soon enough
No but the canned stuff is propably to heavy, as weel as being expensive. You'd have to do some investigating to find out what foam to use.
__________________
!! WARNING !! The above information is to be used by intelligent people only. If you are Stupid, could be considered a moron, or otherwise. You are instructed to disregard this information and seek the help of a licensed and bonded professional.
Reply With Quote Share with Facebook
  #3  
Old 07-14-2007
nor cal (frigid) member
 
Join Date: Jun 2006
Location: santa cruz
Posts: 33
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
piggybeach is on a distinguished road
Quote:
Originally Posted by danjarch
No but the canned stuff is propably to heavy, as weel as being expensive. You'd have to do some investigating to find out what foam to use.
what do you think?
"special" foam i found is this...
Boat Ship and Pontoon Foam Insulation
Reply With Quote Share with Facebook
  #4  
Old 07-14-2007
Junior Member
 
Join Date: Jul 2007
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Oopsuhoh is on a distinguished road
The problem I see with it, is most of the spray foams are rigid. The break when flexed. Since they would be flexing inside the inflatable pontoons they would quickly break into a bunch of tiny pieces, and water would fill the cracks. Defeating the purpose of the foam.

This is my theory only, observed from cutting overfill from around windows.
Reply With Quote Share with Facebook
  #5  
Old 07-14-2007
Senior Member
 
Join Date: Nov 2006
Posts: 318
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
wildcard is an unknown quantity at this point
I thought about doing this too but never did. I quite sure the foam would be more than strong enough as it would have a 12 inch plus diamater. The problem I see is as the foam shrinks, water will get traped inside. Try it, what do you have to lose? Hang if from the rear, cut a slit in each chamber and pour it in. When it's done expanding, patch over the hole and float it.
Let us know how it works out.
Reply With Quote Share with Facebook
  #6  
Old 07-14-2007
Senior Member
 
Join Date: Nov 2006
Posts: 318
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
wildcard is an unknown quantity at this point
Did I mention you woould have to use the two part pourable foam?
Reply With Quote Share with Facebook
  #7  
Old 07-14-2007
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,291
Thanks: 0
Thanked 8 Times in 8 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
I think you'd be better off using a small air compressor or pump to keep the damn thing inflated and then quickly glassing over the tubes... Turn it into a fiberglass dinghy. Keep it inflated until the fiberglass cures. Then cut a small hole in the fiberglass and through the inflatable cloth and pour foam in to the opening....then glass over the hole after the foam hardens.

A friend of mine got a dinghy that this had been done to down in the French Antilles or somewhere like that... I never laughed so hard when I first saw it—really ugly—but it worked pretty well for her.... It was built from a high-pressure, inflatable floor model, but all the inflatable bits were glassed over with a light layer of glass (a couple of layers of 2 or 4 oz as my best guess) and filled with foam.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Share with Facebook
  #8  
Old 07-14-2007
danjarch's Avatar
Siren 17
 
Join Date: Jun 2007
Location: Grapevine TX
Posts: 1,782
Thanks: 0
Thanked 4 Times in 4 Posts
Rep Power: 7
danjarch will become famous soon enough
I think at $700 hundred plus shipping for the foam you would need, I'd plunk it down on a new inflatable. I think the idea would work, but you could probably find a used inflatable or a nice dingy for about about the cost of the foam.
__________________
!! WARNING !! The above information is to be used by intelligent people only. If you are Stupid, could be considered a moron, or otherwise. You are instructed to disregard this information and seek the help of a licensed and bonded professional.
Reply With Quote Share with Facebook
  #9  
Old 07-14-2007
nor cal (frigid) member
 
Join Date: Jun 2006
Location: santa cruz
Posts: 33
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
piggybeach is on a distinguished road
Quote:
Originally Posted by danjarch
I think at $700 hundred plus shipping for the foam you would need, I'd plunk it down on a new inflatable. I think the idea would work, but you could probably find a used inflatable or a nice dingy for about about the cost of the foam.
good point. there is a cheaper foam available too: cheaper foam url

...however, it's not "coast guard approved."
Reply With Quote Share with Facebook
  #10  
Old 07-14-2007
USCGRET1990's Avatar
SENIOR CHIEF
 
Join Date: May 2007
Location: YORKTOWN, VA
Posts: 1,380
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
USCGRET1990 is on a distinguished road
The tubes are replaceable on (RHI)Avons, have you checked that Avenue? I'm not sure what you are dealing with there...maybe just go here and get a new one?!WholesaleInflatableBoats.com | Wholesale Inflatable Boats | Inflatable Boats | Rigid Inflatable Boats | Inflatable Boat
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
Seakindly Boats vs.the rest rmf1643 Boat Review and Purchase Forum 14 04-10-2013 03:26 PM
How heavy is too heavy II ? PCP General Discussion (sailing related) 14 09-21-2007 09:48 PM
You've Bought the Wrong Boat John Kretschmer Buying a Boat Articles 0 06-01-2004 08:00 PM
The New Racing Rules Dobbs Davis Racing Articles 0 04-04-2001 08:00 PM


All times are GMT -4. The time now is 04:14 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