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Old 06-18-2018, 01:20 PM   #1
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VHB Tape: Which kind?

If you have successfully used VHB tape to attach a shelf to an interior, unreinforced wall in your Escape, could you please let me know what the specific tape number was (.e.g. 4901, or 4973, or 4611, or some other number).

I have read some posts that reference the use of 3M's VHB tape, to attach a shelf to a wall, for example, but the type of tape wasn't specified. And there are at least 8 tape "families", each specific to particular surfaces! (There are many negative reviews of the tape on Amazon, stating the tape won't adhere, but it seems to me that the user selected the wrong type of VHB tape in the first place.)

Thanks for any help!
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Old 06-18-2018, 03:37 PM   #2
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I use over 100 yards of 3M VHB tape every month for my products. 95% of it is part number RP45, rated for indoor and outdoor exposure to 200F with a shear strength of 20 lbs per square inch when cured.

Do not use it on veneered wood (as in an Escape interior) unless you are absolutely positive you will not want to remove your part as it will most likely remove the veneer.

The "45" in the part number refers to the thickness (0.045 inch)which is enough to get dental floss or fishing line between joined parts to cut through the foam center of the tape. Then removal be "rolling" the residual from a surface usually works fine - but I've only done that twice on veneer. On fiberglass it works fine and a bit of acetone helps clean up any remaining adhesive.


You can get it with different widths, lengths, sizes, etc online through Amazon; pricing is about 7 cents per square inch.
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Old 06-18-2018, 05:08 PM   #3
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I used 4941 to stick my solar panel on (four years ago). I did quite a bit of research and figured that the 4941 was best for my project. I found 3m's literature on VHB tape to be confusing, to say the least – what with "high / low energy surface" etc.

This stuff is extremely very-high-bond. Once you attach this tape to a properly-prepared surface, consider it permanent.


VHB tape has quite a number of uses around the house / workshop / Escape.

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Old 06-18-2018, 09:40 PM   #4
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I used this to attach two Umbra hook/cubbies on unreinforced walls. It is rock solid, but as mentioned above it should be considered permanent. It will ruin the wall veneer if you try to remove it.

http://www.homedepot.com/p/3M-Scotch...-205507375-_-N

There are smaller rolls too if you donít want as much

http://www.homedepot.com/p/3M-Scotch...C-SF/203405976
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Old 06-19-2018, 11:31 AM   #5
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the Canadian Home Depot only seems to carry this

https://www.homedepot.ca/en/home/p.s...001027515.html

and it works very well.
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Old 06-19-2018, 12:42 PM   #6
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Thank you all!
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Old 06-19-2018, 02:21 PM   #7
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Quote:
Originally Posted by rubicon327 View Post
I used this to attach two Umbra hook/cubbies on unreinforced walls. It is rock solid, but as mentioned above it should be considered permanent. It will ruin the wall veneer if you try to remove it.

www.homedepot.com/p/3M-Scotch-1-in-x-11-1-yds-Permanent-Double-Sided-Extreme-Mounting-Tape-414-LONGDC/205507375?MERCH=REC-_-PIPHorizontal2_rr-_-203405976-_-205507375-_-N

There are smaller rolls too if you don’t want as much

www.homedepot.com/p/3M-Scotch-1-in-x-1-66-yds-Permanent-Double-Sided-Extreme-Mounting-Tape-414DC-SF/203405976
The ad for his particular tape says it takes the entire 5' roll to hold up 30 lbs max (20 lbs recommended), so I have to wonder if maybe it isn't the strongest version of the tape. I noticed that Scotch calls it "mounting tape" but not "VHB" which is a "bonding tape".
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Old 06-19-2018, 02:32 PM   #8
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Quote:
Originally Posted by Mike G View Post
The ad for his particular tape says it takes the entire 5' roll to hold up 30 lbs max (20 lbs recommended), so I have to wonder if maybe it isn't the strongest version of the tape.
I've never been able to find true specifications for any 3M tape on the 3M website as all their tape specs are by part number, not retail product names. I prefer knowing the specs by square inch of tape when evaluating applications.
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Old 06-19-2018, 02:39 PM   #9
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Last year I retired from 3M after 38 years, mostly in adhesive tapes, and most recently in the Industrial Adhesives and Tapes Division lab, which makes and sells VHB - which stands for Very High Bond. Yes, there are many varieties, and it would be wise to choose the right version. When you see the term 'high energy', referring to the surface, it generally means metal. 'Low surface energy' generally refers to plastics like polyethylene or polypropylene. Medium surface energy would be plastics like nylon or other engineering plastics. When your car is clean and freshly waxed you have a low energy surface, so a liquid like water will not want to stick - that is why it beads up and runs right off. A grade of VHB for high surface energy will stick great to steel or aluminum, but will do very poorly on polyethylene. I would consider the fiberglass shell of an Escape to be a medium surface energy material. A low surface energy VHB will stick to a high energy surface, but will not form the ultimate high bond strength that the grade for that surface can ultimatley form. If you ever really want to get some more details, go on-line to 3M Helps, https://www.3m.com/3M/en_US/company-us/help-center/, and ask to speak to a subject matter expert on VHB. I have recommended this tactic in the past for those who want to know more about 3M COMMAND products. They will not make a fortune selling to you, but knowing my former colleagues as I do, they will all be happy to talk over your issues and make a good recommendation. Then buy at Home Depot, Walmart, etc, in the small quantities that you desire. If you have any other questions just let me know. For full disclosure, I do still own stock in 3M, so please help out my retirement
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Old 06-19-2018, 03:04 PM   #10
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Quote:
Originally Posted by tractors1 View Post
I've never been able to find true specifications for any 3M tape on the 3M website as all their tape specs are by part number, not retail product names. I prefer knowing the specs by square inch of tape when evaluating applications.
I found this pdf spec sheet, listing 3 main types of VHB tape, if that helps...
https://multimedia.3m.com/mws/media/...11-2015_R9.pdf
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