Deck Plate mod on fresh water tank - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-05-2013, 11:21 AM   #1
Senior Member
 
Name: Randy J.
Trailer: Trillium
Ontario
Posts: 147
Deck Plate mod on fresh water tank

Someone here a while back suggested using a marine deck plate to gain access to an RV fresh water tank. I intend to do so but wonder what sealant to use between the two plastic surfaces. Silicone seems the obvious easy choice but I am concerned about using it around potable water. There is a type that is said to be safe for aquariums but looking more closely, it isn't recommended for around food. Anybody found one?

Another choice would be high temperature glue sticks. These seem totally innocuous from their MSDS's and bond well to polyethylene (the tank, I think) but perhaps not as well to polypropylene (the deck plate). And they do have a waxy surface which one assumes may leech.

Randy
__________________

__________________
Randy J. is offline   Reply With Quote
Old 11-05-2013, 03:20 PM   #2
Senior Member
 
Jared J's Avatar
 
Name: Jared
Trailer: 1984 19' scamp
Kansas
Posts: 1,610
I used 3m 5200. Even with full tanks, the only time it might touch mine is with sloshing.
__________________

__________________
Jared J is offline   Reply With Quote
Old 11-05-2013, 04:57 PM   #3
Raz
Senior Member
 
Raz's Avatar
 
Name: Raz
Trailer: Trillium 2010
Vermont
Posts: 4,064
Quote:
Originally Posted by Randy J. View Post

Another choice would be high temperature glue sticks. These seem totally innocuous from their MSDS's and bond well to polyethylene (the tank, I think) but perhaps not as well to polypropylene (the deck plate). And they do have a waxy surface which one assumes may leech.

Randy
Hi Randy, this project is on my list as well. What I found is that not much sticks to polyethylene which is why it is used widely for food products. It occurs to me that a rubber (or similar material) gasket might be a better approach. . McMaster Carr is a great information source for materials. That's where I will look. I'll be interested in your solution. Raz

McMaster-Carr
__________________
Raz is offline   Reply With Quote
Old 11-05-2013, 05:04 PM   #4
Senior Member
 
Ice-breaker's Avatar
 
Name: Dave W
Trailer: Escape 19 and Escape 15B
Alberta
Posts: 470
Quote:
Originally Posted by P. Raz View Post
Hi Randy, this project is on my list as well. What I found is that not much sticks to polyethylene which is why it is used widely for food products. It occurs to me that a rubber (or similar material) gasket might be a better approach. . McMaster Carr is a great information source for materials. That's where I will look. I'll be interested in your solution. Raz

McMaster-Carr
I would go with the rubber gasket approach suggested by Raz, as it gives you the flexibility to open and close your tank at will without having to remove and replace caulking or other sealant.
__________________
Dave W - 2013 Escape 19', 2013 Escape 15B and 2011 Toyota FJ Cruiser

"You've got to be very careful if you don't know where you are going, because you might not get there." - Yogi Berra
Ice-breaker is offline   Reply With Quote
Old 11-05-2013, 05:54 PM   #5
Senior Member
 
Jared J's Avatar
 
Name: Jared
Trailer: 1984 19' scamp
Kansas
Posts: 1,610
Quote:
Originally Posted by Ice-breaker View Post
I would go with the rubber gasket approach suggested by Raz, as it gives you the flexibility to open and close your tank at will without having to remove and replace caulking or other sealant.
That's the whole point of installing the deck plate.





The top of my tank wasn't completely flat. I suppose a soft rubber would have worked. I already had the 3m 5200 because I was installing bulkheads in my kayaks. I put a hose in the filler blocking most of the opening, cracked the deck plates loose until all air was gone and water came out the top, tightened them, then let them sit under pressure from the hose for a few hours. No leaks.
__________________
Jared J is offline   Reply With Quote
Old 11-05-2013, 07:39 PM   #6
Commercial Member
 
tractors1's Avatar
 
Name: Charlie Y
Trailer: Escape 21 - Felicity
Oregon
Posts: 1,127
My late wife was a chemical engineer; I recall her pointing out that an MSDS sheet covers the safety of the material as sold and that for adhesives it's not 100% accurate once the adhesives have cured as the volatiles are gone and the material has changed chemical composition to a stable form.
__________________
Charlie Y

Don't drill holes, try custom storage you design: http://RVWidgetWorks.com
tractors1 is offline   Reply With Quote
Old 11-11-2013, 05:41 PM   #7
Junior Member
 
Name: Eric
Trailer: 2001 Casita 17' FD
California
Posts: 21
I used a butyl tape that I bought from an RV store. I think that it is normally used to seal RV windows and other exterior openings.
I don't have a part number or even the name of the manufacturer.
__________________

__________________
Eric Heinz is offline   Reply With Quote
Reply


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

Advanced Search
Display Modes

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
Deck Plate Sebastian H Modifications, Alterations and Updates 10 07-24-2012 10:29 PM
Inspection plate installed in water tank Roger Kimble Modifications, Alterations and Updates 13 04-22-2012 07:49 PM
Auxiliary Fresh Water Tank, Transferring Water Adrian W General Chat 0 09-05-2010 03:36 PM
Trouble adding water to a fresh water tank Dan Tracy Problem Solving | Owners Helping Owners 1 05-05-2008 09:11 PM
2nd Fresh Water Tank Christi V. Modifications, Alterations and Updates 0 12-31-1969 07:00 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:11 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.