3M VHb Tape and Exterior Wax - Page 3 - Fiberglass RV


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Old 03-23-2013, 03:34 PM   #29
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Thanks David, that's so good to know.
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Old 03-23-2013, 04:55 PM   #30
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Let's not forget that we are dealing with fiberglass. Old holes can be and have, many, many times been filled. One would be hard pressed to find a patched hole that will never leak. It is dome on fiberglass boats, cars and our beloved fiberglass trailers.
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Old 03-23-2013, 05:20 PM   #31
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The thing we like about using a canopy over our Uhaul while we are spending the winter in GA is it keeps the falling acorns from the Live Oaks from banging on the top of the trailer. We don't use it for short term camping. An awning would be nice, but it looks like I'll have to get one custom made to the width I want, and I don't want a bag awning, I'm also concerned about getting a good pitch without interfering with the door. I need to do some more figuring on it.
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Old 03-23-2013, 06:47 PM   #32
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Originally Posted by Francesca Knowles View Post
Sounds like you already have the new rail- why not redrill THAT so its holes match up to the ones on the trailer? You could use the old rail as a template...

You'll have to seal those old rivet holes anyway, and what better method than by putting rivets back in?

Francesca
Excellent method there Francesca!

There are many types of VHB tape, which I use for all my products, with differing degrees of holding power. I've had requests for items which would be mounted to the exterior and just won't make them. Too much depends on how well the owner cleans everything prior to installing with tape. Rivets that don't snug up right are obvious and can be redone. Any tape issues are not visible, nor can you do periodic inspections.

I wouldn't want my products falling off and whacking a motorcycle behind me......

Charlie Y
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Old 03-23-2013, 06:54 PM   #33
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Francesca,

I've atttached solar panels with mechanical fasteners and vhb strength tape. I like the tape better. Fasteners, in my case, loosened; the tape seems to be forever.

We're well in to our second year and as well fixed as the day I put them down.
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Old 03-23-2013, 07:12 PM   #34
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Francesca,

I've atttached solar panels with mechanical fasteners and vhb strength tape. I like the tape better. Fasteners, in my case, loosened; the tape seems to be forever.

We're well in to our second year and as well fixed as the day I put them down.
Sounds like luck is on your side, Norm...so far anyway. Dunno what kind of "mechanical fasteners" you used, but since they loosened it may be that they were wrong for the application.

I'm just not much of a dice-roller, and choose my fasteners/methods very carefully and always with an eye on the worst-case scenario.



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Old 03-23-2013, 07:14 PM   #35
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Francesca,

I've attached solar panels with mechanical fasteners and vhb strength tape. I like the tape better. Fasteners, in my case, loosened; the tape seems to be forever.

We're well in to our second year and as well fixed as the day I put them down.
Every thing attached to the side of a car these days is with double faced tape - like body side molding, lettering, etc.
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Old 03-23-2013, 09:28 PM   #36
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Every thing attached to the side of a car these days is with double faced tape - like body side molding, lettering, etc.
Anything that isn't strictly decorative, such as rear view mirrors, luggage racks....bumpers?

Bling is one thing- work is something different. In my opinion carrying something as heavy/wind resistant as an awning is work, and as such would better be held on with mechanical fasteners.

Again, just my hypercaution speaking.

Francesca
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Old 03-24-2013, 12:07 AM   #37
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Originally Posted by Francesca Knowles View Post
Anything that isn't strictly decorative, such as rear view mirrors, luggage racks....bumpers?

Bling is one thing- work is something different. In my opinion carrying something as heavy/wind resistant as an awning is work, and as such would better be held on with mechanical fasteners.

Again, just my hypercaution speaking.

Francesca
I have just installed my 3rd panel with VHB tape .
The first one was about 3 years ago.
I wet sanded the areas where the roof mounts are attached cleaned it with alcohol and it's tight to this day.

I was a little skeptical but anything that holds a jet together at 30,000 ft in sub zero temps has worked well for me.
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Old 03-24-2013, 01:27 PM   #38
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I was a little skeptical but anything that holds a jet together at 30,000 ft in sub zero temps has worked well for me.
This I didn't know- do you mean to say that parts of jets' structural exteriors are actually held on solely with over-the-counter glue like the one under discussion here?

Thanks!

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Old 03-24-2013, 01:34 PM   #39
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One aspect of the vhb strength tape is that the area in contact holding my panels to the roof is large. Each panel is the order of a foot square and has 48 square inches of tape, a strip down each of four sides.

Nothing agains fasceners, but the tape has worked real well and apparantly in many larger applications.
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Old 03-24-2013, 02:06 PM   #40
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One aspect of the vhb strength tape is that the area in contact holding my panels to the roof is large. Each panel is the order of a foot square and has 48 square inches of tape, a strip down each of four sides.

Nothing against fasteners, but the tape has worked real well and apparently in many larger applications.
So with 48 square inches and 70 pounds per square inch tensile strength, you are at 3360 pounds. Are you sure that is enough?
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Old 03-24-2013, 03:12 PM   #41
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This I didn't know- do you mean to say that parts of jets' structural exteriors are actually held on solely with over-the-counter glue like the one under discussion here?
Yes. 3M's VHB products are not just consumer-grade material; they are industrial products which happen to be available to the consumer.

Aluminum airliners are now routinely assembled with both rivets and adhesives, with the adhesives providing all of the required strength for panel attachment and the rivets as essentially assembly aids and backup. The exterior of a modern aircraft is also a major part of the structure. Much of the fleet in the air today, on the other hand, was designed decades ago and depends entirely on rivets to fasten panels.

I suggest caution in applying this reasoning to become "everything can be stuck together with this stuff because it holds airplanes together". There are many adhesive products and many design configurations, and the right adhesive - installed properly - is needed for the situation.
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Old 03-25-2013, 05:26 PM   #42
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Tom,
I did not use industrial strength but rather 3m scotch exterior tape, a member of the family. It has been more than adequate but just as tough to remove.

I believe it was $15 for a 50 feet or so....
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