Author Topic: USING UHB OR VHB DOUBLE-SIDED TAPE?  (Read 6481 times)

0 Members and 1 Guest are viewing this topic.

Offline mcooley

  • Posts: 237
USING UHB OR VHB DOUBLE-SIDED TAPE?
« on: December 30, 2014, 08:52 PM »
Curious if anyone has a particular brand and/or type of double-sided tape they use for quasi-structural applications? I think the UHB may be too permanent for my needs but in general I am looking for a double-sided tape to go between wood and drywall as an additional support. It will not be used as the primary method but extra assurance that there is no movement.

Thanks

Festool USA does not pre-approve the contents of this website nor endorse the application or use of any Festool product in any way other than in the manner described in the Festool Instruction Manual. To reduce the risk of serious injury and/or damage to your Festool product, always read, understand and follow all warnings and instructions in your Festool product's Instruction Manual. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. Festool makes no representations about the accuracy, reliability, completeness or timeliness of the material on this website or about the results to be obtained from using the website. Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Your use of any material contained on this website is entirely at your own risk. The content contained on this site is provided for informational purposes only and does not constitute professional advice.


Offline overanalyze

  • Posts: 411
Re: USING UHB OR VHB DOUBLE-SIDED TAPE?
« Reply #1 on: December 30, 2014, 10:29 PM »
I use 3m vhm for different applications quite a bit. For wood to drywall I use it in conjunction with caulking or construction adhesive. I view it as a clamp until the caulking/adhesive cures.

Offline FinishingCanuck

  • Posts: 103
Re: USING UHB OR VHB DOUBLE-SIDED TAPE?
« Reply #2 on: December 30, 2014, 10:42 PM »
3m vhb is stronger than any construction adhesive. The hotel in the picture is in Dubai. It glass panels on the exterior are installed using ONLY 3m vhb and it holds up to the most extreme desert sand storms.

Offline overanalyze

  • Posts: 411
Re: USING UHB OR VHB DOUBLE-SIDED TAPE?
« Reply #3 on: December 30, 2014, 10:44 PM »
3m vhb is stronger than any construction adhesive. The hotel in the picture is in Dubai. It glass panels on the exterior are installed using ONLY 3m vhb and it holds up to the most extreme desert sand storms. (Attachment Link)
I agree...for smooth substrates. Glass, aluminum, acrylics, etc. You will ruin the pieces trying to get them apart.

Offline wow

  • Inactive Member
  • *
  • Posts: 3579
  • Official WalMart greeter to the FOG
Re: USING UHB OR VHB DOUBLE-SIDED TAPE?
« Reply #4 on: December 31, 2014, 02:37 AM »
This^^^

Most aluminum trailer skins are now attached using VHB because it's actually stronger than rivets.

**ALERT & Public Service Announcement** Be sure you purchase your VHB from a dealer that moves a lot of it. In use, VHB will last for years - perhaps decades. But just sitting on the shelf the adhesive can get old and cause the VHB not to adhere as it should. Be sure the stuff that you get is reasonably fresh.

And don't buy a lot more than you need as it WILL go bad after a few years of sitting around. I bought a case of the stuff to get a better price several years ago, and when I went to use it recently the adhesive failed. I called the 3M technical information line and they told me that it has a shelf life of a couple of years and after that they won't guarantee it.

BTW, did you know that this is also true for Belt Sander belts? I had several boxes of the expensive 'purple' sanding belts that I had sitting on the shelf for several years. I went to use them and they looked fine, but as soon as I set them down on the wood to be sanded they came apart at the seam. The seam was actually 'sticky' where they had been glued. A call to 3M again revealed that they have a 'use by' date of 2 years or the adhesive starts to break down. I then tried some other brands that i had (Diablo for one) with the same results, so it wasn't just 3M.

To be fair, these belts were MANY years old. But in my defense, I had NO IDEA that they went bad due to age - did you? Anyway, lesson learned - don't buy a whole bunch of belt sander belts that you aren't going to use for years as you may end up throwing them away.
« Last Edit: January 03, 2015, 01:40 AM by wow »
Trying to be one of the most helpful members on the FOG.

Offline Sparktrician

  • Posts: 3805
Re: USING UHB OR VHB DOUBLE-SIDED TAPE?
« Reply #5 on: December 31, 2014, 08:04 AM »
This^^^

Most aluminum trailer skins are now attached using VHB because it's actually stronger than rivets.

**ALERT & Public Service Announcement** Be sure you purchase your VHB from a dealer that moves a lot of it. In use, VHB will last for years - perhaps decades. But just sitting on the shelf the adhesive can get old and cause the VHB not to adhere as it should. Be sure the stuff that you get is reasonably fresh.

And don't buy a lot more than you need as it WILL go bad after a few years of sitting around. I bought a case of the stuff to get a better price several years ago, and when I went to use it recently the adhesive failed. I called the 3M technical information line and they told me that it has a shelf life of a couple of years and after that they won't guarantee it.


Makes me wonder how long the adhesive lasts once applied (as opposed to unused shelf life), as in trailer skins and hotel windows... 

BTW, did you know that this is also true for Belt Sander belts? I had several boxes of the expensive 'purple' sanding belts that I had sitting on the shelf for several years. I went to use them and they looked fine, but as soon as I set them down on the wood to be sanded they came apart at the seam. The seam was actually 'sticky' where they had been glued. A call to 3M again revealed that they have a 'use by' date of 2 years or the adhesive starts to break down. I then tired some other brands that i had (Diablo for one) with the same results, so it wasn't just 3M.

To be fair, these belts were MANY years old. But in my defense, I had NO IDEA that they went bad - did you? Anyway, lesson learned - don't buy a whole bunch of belt sander belts that you aren't going to use for years as you may end up throwing them away.

Had the same thing occur with the Klingspor belts.  Went to sand something and before I knew it, there were belt snakes all over the place.  The belts had been stored in a protected area, but the adhesive just gave up the ghost. 

- Willy -

 "Remember, a chip on the shoulder is a sure sign of wood higher up." - Brigham Young

Offline mcooley

  • Posts: 237
Re: USING UHB OR VHB DOUBLE-SIDED TAPE?
« Reply #6 on: January 02, 2015, 09:18 PM »
Thanks all for the input!