VHB Tape - Brick & Mortar Store that has it in stock in SE USA? - Fiberglass RV


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Old 02-06-2015, 09:23 PM   #1
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VHB Tape - Brick & Mortar Store that has it in stock in SE USA?

Hi All,
Looking for a good place to buy 3M VHB Tape for mounting solar panels on our Eggcamper. We are traveling from Eastern NC on Sat. down I95 to Scamp Camp on Monday. Then we will be in Florida for about 10 days. Looking for a place to buy VHB on the way or in Northern/Central Florida. Grainger lists 5yd. rolls of .045 3/4" for about $18. Any comments on a vendor that has it in stock and for a reasonable price would be appreciated. The full size rolls go for around $100, but we don't need that much.
Thank-You
Mark
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Old 02-06-2015, 11:19 PM   #2
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I bought 3M VHB tape from a seller on Ebay. I used it to mount a solar panel on my 21 Bigfoot. It has been on the trailer for 3 years. After the install I used self leveling caulking applied to the tape and bracket.
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Old 02-07-2015, 07:52 AM   #3
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VHB tape comes in different thickness and strengths. I bought some at Lowes. It may have been rated 25lb. Don't remember what & where I tried to attach something but don't think it worked good.
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Old 02-07-2015, 08:10 PM   #4
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If its the same tape I'm thinking of you can get it at WalMart.
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Old 02-08-2015, 07:43 AM   #5
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VHB is a much higher strength adhesive tape than the red tape you see at walmart, lowes, etc.

Your best bet is to order some from Amazon or a solar installer to be sure you get exactly what you are looking for. I've seen small rolls on Amazon - search VHB - it isn't cheap though.
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Old 02-10-2015, 10:42 AM   #6
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online?

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3M VHB Tape, VHB Tape in Stock - Uline
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1-800-295-5510
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.

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Old 02-10-2015, 12:57 PM   #7
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I ordered mine from Amazon, then found some in the local O'Reilly Auto parts store.
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Old 02-10-2015, 06:04 PM   #8
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Quote:
Originally Posted by coastsignal View Post
Hi All,
Looking for a good place to buy 3M VHB Tape for mounting solar panels on our Eggcamper. We are traveling from Eastern NC on Sat. down I95 to Scamp Camp on Monday. Then we will be in Florida for about 10 days. Looking for a place to buy VHB on the way or in Northern/Central Florida. Grainger lists 5yd. rolls of .045 3/4" for about $18. Any comments on a vendor that has it in stock and for a reasonable price would be appreciated. The full size rolls go for around $100, but we don't need that much.
Thank-You
Mark
I use a LOT of 3M tapes in my products. You definitely want a closed cell foam tape that's weatherproof. 3M RP45 is used by the trucking industry to mount mirrors; I use it in all my products exposed to hot/cold and water. Can get it in smaller amounts on e-bay. Spec sheet: **3M™ VHB™ Tape RP45

Charlie Y
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Old 02-25-2015, 09:24 PM   #9
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VHB Tape - Brick & Mortar Store that has it in stock in SE USA?

3M has many (dozens?) of different VHB tapes. Be sure to get the right stuff. They recommended # 5952 for my project, sticking aluminum channel to fiberglass gelcoat. I got way more than I needed for one 100w panel from Amazon for about $35.

The panel has been stuck to the roof for almost a year and probably 6000 miles.


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Old 03-06-2015, 06:48 PM   #10
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VHB & mounting Solar Panels on FiberGlass RV

Got 3m VHB from Grainger. ALmost none of their stores stock it, but they offer-2 day, free ship to store --I bought 1" .045 conformable and it was about $16 per 5 yd roll.

I Talked with a 3m engineer at the recent (national supplier's) hardware show in Orlando 3 wks ago. He says that the 20# extreme 3m dbl sided tape IS VHB tape in a consumer pack--but not the 10# version. While I was talking with him--after my question regarding surface prep--he called the specific VHB engineering dept at 3m. On fiberglass RV, They recommend carefully roughing up with a scotchbrite pad, using Acetone as a cleaner and wiping down down with Alcohol after the Acetone.

The consumer Extreme package is only about .020, so might not work so well with solar panels on fgrv's. By memory--I think the part #s 411.
Mark
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Old 06-18-2015, 08:14 AM   #11
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Mine has held my two flexible panels well for 4000 miles in rain cold and heat. I also taped the outside edges with shrink wrap tape and left two small gaps at the bottom on each side for any condensation to drain. Mine are mounted slots vertically for winter sun angles. I'm happy with the VHB tape. I did not want to drill holes.


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Old 06-19-2015, 01:36 PM   #12
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VHB Tape for Solar Panels on the Roof

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Originally Posted by Night Sailor View Post
Mine has held my two flexible panels well for 4000 miles in rain cold and heat. I also taped the outside edges with shrink wrap tape and left two small gaps at the bottom on each side for any condensation to drain. Mine are mounted slots vertically for winter sun angles. I'm happy with the VHB tape. I did not want to drill holes.


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Conrad,

Hope the panels stay on as long as you need them to. With all the opinions about VHB tape I've gotten, I'd guess the challenge will be removal.

I still haven't done the job on mine, but have the tape, panel, wiring, etc., ready.

The Scotch "Extreme" tape (VHB tape in a consumer package, mentioned previously) is Part #414, UPC 051141910840, $7.99 for a 1" x 60" roll. Good for other items, But it's probably a bit thin for the solar panel. mounting.

Mark
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Old 07-11-2015, 07:58 PM   #13
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From what I hear about it, using VHB tape to secure solar panels to the roof is an "extremely" bad idea. I say don't do it unless you also bolt the panels through the roof. Tape is not going to keep them panels secure in severe weather, in crosswinds, etc. Best do some homework on this first.
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Old 07-11-2015, 09:16 PM   #14
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Quote:
Originally Posted by coastsignal View Post
The Scotch "Extreme" tape (VHB tape in a consumer package, mentioned previously) is Part #414, UPC 051141910840, $7.99 for a 1" x 60" roll. Good for other items, But it's probably a bit thin for the solar panel mounting.
There are many formulations of VHB. The Scotch extreme you mention is a low end tape with correspondingly low surface energy, as measured in Dynes per cm.

I would not even attempt to use VHB for a solar panel mounting unless it was the higher end industrial VHB with a high surface energy. There's alot of science behind VHB tapes, and there are very specific applications for each. As others have mentioned, you need the right one for the job. The stuff you buy at Walmart just isn't suitable for this application imho.
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