Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-12-2015, 13:37   #16
Registered User
 
Terra Nova's Avatar

Join Date: Apr 2007
Location: Marina del Rey, California
Boat: Freya 39 cutter- Terra Nova
Posts: 3,652
Re: Waterproofing Insulation for Fridge/Freezer

Can't be cheaper than polyethylene sheeting.
__________________

__________________
1st rule of yachting: When a collision is unavoidable, aim for something cheap.
"whatever spare parts you bring, you'll never need"--goboatingnow
"Id rather drown than have computers take over my life."--d design
Terra Nova is offline   Reply With Quote
Old 10-12-2015, 14:40   #17
Registered User

Join Date: Jan 2009
Boat: Tartan 37 #6
Posts: 326
Re: Waterproofing Insulation for Fridge/Freezer

I built a new fridge/freezer last winter, used polyiso,all panel edges sealed with aluminum tape,all joints overlapped ,min 4 1/2'' thk,more on hull side. Box made of 1/2''ply,epoxy soaked and interlux perfection painted. Used a Seafrost freezer box unit with a loose foam divider. Compressor on medium,ice box set to 15 F, small 'muffin' fan operating when compressor on. Draws 4 1/2 amps. If undisturbed,runs for 20min then off for 100 min with ambient air mid 80's.Left it on all summer with 2, 135w Keyocera panels. Very happy,permanent cold beer. [my first attempts at Formica work]
Attached Thumbnails
Click image for larger version

Name:	IMG_1195.jpg
Views:	87
Size:	405.5 KB
ID:	114658   Click image for larger version

Name:	IMG_0055.jpg
Views:	86
Size:	415.3 KB
ID:	114659  

__________________

__________________
steamgoat is online now   Reply With Quote
Old 10-12-2015, 15:13   #18
Registered User
 
Terra Nova's Avatar

Join Date: Apr 2007
Location: Marina del Rey, California
Boat: Freya 39 cutter- Terra Nova
Posts: 3,652
Re: Waterproofing Insulation for Fridge/Freezer

Looks good.
__________________
1st rule of yachting: When a collision is unavoidable, aim for something cheap.
"whatever spare parts you bring, you'll never need"--goboatingnow
"Id rather drown than have computers take over my life."--d design
Terra Nova is offline   Reply With Quote
Old 10-12-2015, 15:58   #19
Registered User
 
zboss's Avatar

Join Date: Sep 2011
Location: On a boat
Boat: Cabo Rico 38
Posts: 3,431
Re: Waterproofing Insulation for Fridge/Freezer

Quote:
Originally Posted by Terra Nova View Post
Can't be cheaper than polyethylene sheeting.
They also make heat shrink poly.

Quote:
Originally Posted by steamgoat View Post
I built a new fridge/freezer last winter... [my first attempts at Formica work]
How did you build the lid so it fit well?
__________________
zboss is offline   Reply With Quote
Old 10-12-2015, 16:22   #20
Registered User

Join Date: Jan 2008
Location: Berkeley, CA
Boat: Hylas 47
Posts: 65
Re: Waterproofing Insulation for Fridge/Freezer

Here's a follow-up question. The back wall of the fridge and freezer boxes are against the hull. This starts off as essentially vertical at the top and then toward the bottom is at more of an angle. I am wondering about the best way to keep this all securely in place. The same issue applies to the inside top of the box. Should I glue the plastic sheeting to the hull and then glue the foam sheets to the plastic? Once I build up the desired thickness of insulation I plan to glue or epoxy thin fiberglass paneling material to make the finished inside surface.

Another complication is the inside hull surface seems to stay in a state of dampness - warm air inside and cold water outside. Perhaps run a dehumidifier in the boxes while I am working on this?

Greg
__________________
gdavids is offline   Reply With Quote
Old 10-12-2015, 19:39   #21
Registered User
 
Nicholson58's Avatar

Join Date: Jan 2011
Location: Live aboard
Boat: Camper & Nicholson58 Ketch - ROXY Traverse City, Michigan No.668283
Posts: 3,466
Images: 83
Re: Waterproofing Insulation for Fridge/Freezer

I used to work at DOW. Their expanded Polystyrene foam is about as waterproof as you can get. Also equal or better is UCI pink foam board (Home Depot). Do not use EPS bead foam. This is nearly worthless - the white foam board that looks like tiny beads pressed together.


I also worked for a supplier of refrigeration foam systems using molded in place Urethane foam. This is excellent if the inner box is totally water tight and sealed such as your home fridge. In this system the vacuum molded inner liner is placed in the steel box. All is placed in a strong mold to support the bits and polyol/isocyanate mix is shot in. This rises and due to the dissolved blowing agents, like a shaken bottle of root beer. Cream and cure time is in the seconds to minutes. The key to success is that the foam is sealed in totally both inside and outside so no condensation can occur within the foam. This is critical since all urethane foams are NOT totally water resistant. Exposed over time, they are all permeable.
__________________

__________________
Nicholson58 is offline   Reply With Quote
Reply

Tags
freezer, insulation, water

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Aerogel - Spaceloft Insulation for Fridge / Freezer Weyalan Plumbing Systems and Fixtures 209 12-03-2016 18:48
Insulation Between Fridge and Freezer mikereed100 Plumbing Systems and Fixtures 6 30-08-2010 16:53
Multipanel for Freezer Insulation ozmike Construction, Maintenance & Refit 4 20-07-2010 07:18
Freezer Insulation ? gbanker Plumbing Systems and Fixtures 8 20-05-2010 20:42
Improving Insulation on Existing Fridge / Freezer sailorgal Plumbing Systems and Fixtures 1 17-04-2010 07:21



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 16:13.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.