"Tabbing" - Fiberglass RV


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Old 04-29-2010, 09:58 AM   #1
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Could someone please give me a like to a "Tabbing How-To" thread or site?

thanks
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Old 04-29-2010, 10:41 AM   #2
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Maybe you want to rewrite this to make it clearer. Do you want a link? Are you asking about Windows Explorer Tabs, maybe TAB trailers (Take America Back) or are you looking for tabs for your three ring binder?
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Old 04-29-2010, 10:46 AM   #3
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Could someone please give me a like to a "Tabbing How-To" thread or site?

thanks
Not to be too risqué but I recently caught two yellow alley cats making Tabbys on my porch? If you are interested I am sure you could have a kitten


LOL.... Just kidding... I am not sure what tabbing is? Sounds like something cool though...
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Old 04-29-2010, 11:08 AM   #4
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Don,

I am assuming you are referring to Raya's post in my 17 ft. Boler project.

If I were adding cabinetry, I would consider tabbing it to the shell (fiberglass tabbing).


Here is my interpretation of tabbing.

These are already installed in the trailer as bench supports. I will use the same idea, adding a screw insert into the "tab" in order to have an anchor point for my cabinets.

Therefore no rivets penetrating the shell.


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Old 04-29-2010, 11:26 AM   #5
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You may find this book in your library, but you can read some info about tabbing wood and fiberglass here in google books:
http://books.google.com/books?id=uNlKy795H...ing&f=false

Sherry
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Old 04-29-2010, 12:52 PM   #6
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Kevin, From your photos it appears that you used the fiberglass resin to adhere wood blocks to the shell. Did you completely glass over the blocks with more resin, or did you just leave the wood exposed?
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Old 04-29-2010, 02:48 PM   #7
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Hi Don,

I'm at work now, so I don't have time to write too much, but the tabbing I am referring to is basically using strips of fiberglass cloth/reinforcement (often referred to as "tape") to attach things to the hull. You use the tape along with epoxy resin.

Tabbing prefers gradual bends, so you often "fillet" an inside right angle bend, to eliminate the sharp inside corner. Tabbing can do a few things, for example:

1) It can attach two things to each other
2) It can spread point loads
3) It can make a monocoque structure stronger


Basically, imagine taking a piece of 2" wide masking tape and joining two things together with a long, lenghwise piece of it. Substitute fiberglass and resin for the masking tape and you have tabbing.

Here are a couple of photos. In the first photo, you can see the tabbing below and to either side of the "5"; and in the second, you see a wooden bulkhead tabbed to a fiberglass hull. Done properly, these are very strong bonds (they hold boat bulkheads in place and they take a lot of loading).


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I just decided to add one more, because it shows what a fillet looks like. It's the white material in the corners. This is made with thickened epoxy. It keeps the tabbing from making a disagreeable sharp corner (it prefers gradual ones), and also helps to spread loads.


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I should also mention that tabbing is different from epoxying in a mounting block, or etc. as some people are showing. Tabbing is used for making connecting bonds, such as if you were going to "tab in" your upper cabinets instead of riveting them. Of course blocks can also be mounted with fiberglass, but that's not usually referred to as tabbing.

I will try to get you more information tonight or tomorrow.

Raya
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Old 04-29-2010, 03:25 PM   #8
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alternately, if the load is light, you can just epoxy a piece of wood to the fiberglas. I have done this to mount terminal strips and my voltmeter.
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Old 04-29-2010, 04:01 PM   #9
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Talking

Shortly after I bought my sailboat in 1972, I epoxied a brass drawer pull to the inside of the hatch to make it easier to close from the inside. When I sold the boat a couple of years ago, it was still going strong.
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Old 04-29-2010, 05:00 PM   #10
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Quote:
monocoque
Oooh, I like that word. Monocoque, that'll be my word for today.

http://en.wikipedia.org/wiki/Monocoque
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Old 04-29-2010, 07:44 PM   #11
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Pam,

These are original to the trailer (1979). They are supports for the seating. They look to have one strip of fibreglass and then resin coating over the rest of the plywood. No rotting of the wood and they are still firmly attached.
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Old 05-03-2010, 07:29 AM   #12
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Thanks to everyone for the help. I have picked up some books form the library too.
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