Attach points on the shell without piercing it? - Page 2 - Fiberglass RV


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Old 07-08-2012, 02:57 PM   #15
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3M adhesive product main page (65 products):
3M
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Old 07-08-2012, 03:09 PM   #16
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More 3M technical data sheets:

5200 regular
http://multimedia.3m.com/mws/mediawe...ant%205200.pdf

5200 Fast
http://multimedia.3m.com/mws/mediawe...ure%205200.pdf
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Old 07-08-2012, 07:06 PM   #17
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The adhesives and wood supports will work well in places I don't mind a large/long support with plenty of area to be glued. Good chance I'll use something like that for the AC unit in the closet, so thanks for the info and links.

But, there are plenty of places I'd like to put a small, unobtrusive bolt into the wall. For shelves I'd like to remove without leaving large supports, to put a small fitting/fixture, like a shower curtain holder etc. For those things I just want a small attach point. Ideally just a small hole in the fur when nothing's in there. But that could hold a decent load.

Here's my first experiment. I'm thinking I can make a small 1"ish cut in the fur, spread it open and hold it open with a 2" slice of PVC pipe or something like that, tape plastic sheet on the outside of the pipe to keep the resin off the fur, insert my little device and resin it in place. Pull the fur back as much as possible, perhaps find a small, round, tan plastic flat piece, drill a hole in the center and use that around the bolt hole to cover the disturbed fur to give a clean look.



I used the fiberglass cloth I have from an impulse buy and used a few dabs of "super" glue to quickly wrap a layer around my wooden "puck" with the T-nut inserted into it. Then took two layers of cloth on either side, a few more dabs of glue around the edge of the puck to hold the two pieces on the puck until resin is applied.

I suspect my first attempt will be a mess. But that's why I'll be putting a few of these in under my dinette seats where ugly won't matter.
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Old 07-09-2012, 10:48 AM   #18
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Bond on Stud

In the aerospace industry, Click Bond has a line of bond on fasterners.

Here are some bond on studs:
Studs & Standoffs Products - Click Bond, Inc.

I have no idea if any of the products are available at the consumer level.

Craig T.
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Old 07-09-2012, 10:49 AM   #19
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Um, and I have no affiliation with that company.

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Old 07-09-2012, 05:25 PM   #20
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Great link!!!
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Old 07-09-2012, 08:55 PM   #21
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I would think that if you flattened out those spikes in the T-Nut, you probably wouldn't really need the whole wood block part and have a less bulky installation. (in which case it'd function like those standoffs.) Maybe even if you could poke them through the cloth and then flatten them, it'd be even better?

Finding some of those ones with the holes in the head would be awesome, though.

ooh. http://www.efc-intl.com/encyclopedia...-stainless.htm
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Old 07-09-2012, 09:41 PM   #22
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Maybe, I like the wood, because A: it has more surface area, I worry too small an area of metal will just crack the fiberglass. B: I think the wood will give a little, bare fiberglass, again will just crack before it gives much.
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Old 07-09-2012, 09:42 PM   #23
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"http://www.efc-intl.com/encyclopedia/specialty-threaded-bolts-and-studs/bondable-bolts-for-insert-molding/studs-bondable-big-head-threaded-stainless.htm"

Another good link! Thanks for that.
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Old 07-11-2012, 03:12 PM   #24
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why not epoxy wood cleats to the fiberglass then screw your shelving to these cleats?
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Old 07-12-2012, 12:35 AM   #25
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Quote:
Originally Posted by john warren View Post
why not epoxy wood cleats to the fiberglass then screw your shelving to these cleats?
Not sure what you mean by " wood cleats", Just pieces of wood big enough to sink a screw into? I'm trying to keep it thin and flush, so if the shelf is removed there will only be small hole in the fur. I like the idea of a reinforced bolt hole (T nut). That way different lengths of bolt or other types of hardware can be swapped in and out. If I get something I like, I'll probably put them all over, not just the shelves. Ideally I'd like a universal solution that can be used for everything from shelves to show curtain rods, all sorts of fixtures, etc.
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