1.5" Dia Sorbothane Hemisphere Rubber Bumper Non-Skid Feet with Adhesive

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almost exactly what I need Review by Amazon
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I need these little hemispheres to keep a wood cutting board from sliding across the counter top. It works great, but I think it would have been better if amazon had also offered the same size in the harder compound. Having said that, it works well. (Posted on 1/26/2016)
Sorbothane 1.5 inch vibration isolators Review by Amazon
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I purchased a set of these Sorbothane isolation feet to attach to a center channel speaker stand that was susceptible to bass frequency vibrations that immediately disappeared. They have a 3M adhesive base for mounting, but suggest cleaning the mounting area with alcohol, let dry, press the feet in place, and then let them stand for about an hour before setting item in place. The only issue I have with these is the slightly tacky texture of Sorbothane which might leave a mark on some surfaces. You might want to use some type of insulator between the foot and important cabinet surfaces. But, they do work as claimed as an isolation product. (Posted on 1/26/2016)
Great for isolating vibrations, these are the perfect size to use as rear riser pads to improve air circulation under laptops! Review by Amazon
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இ ԲμⓏʐᎽ ധƱ௨Ẕყ Rating:
ѾѾѾѾѾ Highly recommended with warm fuzzies!

The 50-durometer hardness rating of this product is halfway in firmness between the softer 30-durometer Sorbothane bumpers and the firmer 70-durometer Sorbothane bumpers. Sorbothane is a synthetic viscoelastic urethane polymer with excellent shock-absorbing and vibration-dampening properties.

I have two 17-inch laptops and their fan intake vents are located underneath the laptop. The fan intake vents pull air in from underneath the laptop and the warm air from the interior of the laptop is blown out through vents on one side of the laptops. The laptops can get quite warm when there is a lot of extensive CPU or disk activity going on. To improve air circulation underneath the laptop and improve the efficiency of the bottom fan intake vents, I attached two of these 1.5"-diameter vibration-absorbing rubber bumpers near the rear corners of both laptops. But I also wanted these bumpers to be removable so that the laptops could still fit inside laptop case and sleeves; otherwise, the bumpers' .75" height can prevent the laptop from easily sliding into the case or sleeve. So I used sheet metal shears and cut out circles from an old software CD that I no longer needed. I cut out these circles of plastic so that they were slightly larger than the 1.5" diameter of these bumpers. I sanded the edges of these plastic circles to smooth them out. I then attached these adhesive-backed Sorbothane bumpers to the plastic circles that I cut out from the CD. Next, I cut a small square of adhesive-backed "Industrial Strength Velcro Tape", stuck the fuzzy "loop" Velcro side onto the plastic circle that these rubber bumpers are mounted on, and stuck the "hook" Velcro side underneath each laptop near the two rear corners. I carefully attached the "hook" Velcro side on the underside of the laptops near their rear corners so that they were equidistant from the rear (so the laptop would evenly slope forward), and I also positioned the Velcro so that they did not block any screws or removable panels such as the battery compartment or hard drive compartment. This is the perfect size to use as riser pads to lift the rear of a laptop up by .75". And now I have converted these adhesive-backed rubber bumpers to be removable riser pads that attach to the rear of my laptops using Velcro.

The surface of these Sorbothane hemispheres feels sticky and tacky. These bumpers contain a plasticizer that can possibly leach and discolor wood. If you are placing these on wood flooring or furniture, you should insert a small piece of plastic wrap between these bumpers and the wood surface to both prevent the possibility of the plasticizer leaching onto the wood and to also prevent these tacky bumpers from sticking too tightly to the surface that they are sitting on. This is especially true for applications where you need to periodically lift these bumpers off a surface, such as my use of these bumpers as riser pads underneath my laptops. Just leaving my laptop on a desk for one day caused these bumpers to stick onto my desk surface like half-dried chewing gum. And even though each bumper has a backing of 3M adhesive, when you lift the object that is using these bumpers off of the floor, table, or shelf, the bumpers may be sticking so firmly to the surface that they can cause the bumpers' adhesive backing to pull away from the object that you originally stuck them onto. The tacky surface of these bumpers easily picks up dust, lint, and other debris, which can be an issue if a hard piece of debris is stuck onto the bottom of a bumper and it ends up scratching your wood furniture or floor. To solve this sticky issue, I thoroughly cleaned the entire surface of the bumpers and then wrapped the bottom of each bumper with a 1"x1" square of plastic wrap (cling film used to wrap food and food containers). The plastic wrap sticks very well to the bottom of these bumpers and they are no longer prone to sticking or leaching onto any surface without reducing the bumpers' vibration-dampening attributes. Some uses of these bumpers require that an object be firmly mounted to a surface without any possibility of shifting, and that object will rarely or never be moved. But for most applications such as using these underneath speakers, turntables, laptops, etc, I recommend wrapping these bumpers with a layer of plastic wrap if you do not require these bumpers to stick very firmly to the surface, and this will prevent the possibility of plasticizer leaching out, difficulty in lifting the bumpers from the surface, and debris sticking onto the tacky surface that may scratch wooden surfaces.

The surface of these Sorbothane hemispheres feels sticky and tacky. These bumpers contain a plasticizer that can possibly leach and discolor wood. If you are placing these on wood flooring or furniture, you should insert a small piece of plastic wrap between these bumpers and the wood surface to both prevent the possibility of the plasticizer leaching onto the wood and to also prevent these tacky bumpers from sticking too tightly to the surface that they are sitting on. This is especially true for applications where you need to periodically lift these bumpers off a surface, such as if you need to sometimes move the speakers or subwoofer that are using these bumper feet. Leaving these bumpers pressed onto a surface for a long period of time can cause them to stick onto the surface like half-dried chewing gum. And even though each bumper has a backing of 3M adhesive, when you lift the object that is using these bumpers off of the floor, table, or shelf, the bumpers may be sticking so firmly to the surface that they can cause the bumpers' adhesive backing to pull away from the object that you originally stuck them onto. The tacky surface of these bumpers easily picks up dust, lint, and other debris, which can be an issue if a hard piece of debris is stuck onto the bottom of a bumper and it ends up scratching your wood furniture or floor. To solve this sticky issue, I thoroughly cleaned the entire surface of the bumpers and then wrapped the bottom of each bumper with a 1.5"x1.5" square of plastic wrap (cling film used to wrap food and food containers). The plastic wrap sticks very well to the bottom of these bumpers and they are no longer prone to sticking or leaching onto any surface without reducing the bumpers' vibration-dampening attributes. Some uses of these bumpers require that an object be firmly mounted to a surface without any possibility of shifting, and that object will rarely or never be moved (e.g. sensitive laboratory equipment mounted on metal shelves or Formica countertops). But for most applications such as using these underneath speakers, turntables, laptops, etc, I recommend wrapping these bumpers with a layer of plastic wrap if you do not require these bumpers to stick very firmly to the surface, and this will prevent the possibility of plasticizer leaching out, difficulty in lifting the bumpers from the surface, and debris sticking onto the tacky surface that may scratch wooden surfaces.

These Sorbothane bumpers are expensive, but they are a lot more effective at reducing vibration than generic stick-on rubber bumper feet. The Isolate-It! company does sell versions of these bumpers with a urethane coating that prevents plasticizer leaching and are also not as sticky. But at the present time, the urethane-coated bumpers are not being sold on Amazon and they are really expensive if you buy them directly from the manufacturer. Wrapping these bumpers in a layer of plastic wrap works just as well :) (Posted on 1/26/2016)
Great for Vibration But Sticky! Review by Amazon
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I bought these to help isolate my sub-woofer from my neighbors in the condo below me. It seems to do a great job isolating the bass and seems to help the sound quality of the lower end too.

The downside is that this material is slightly sticky. Upon application to the sub-woofer, they exhibited a "tacky" or slightly sticky behavior with my hardwood floor. My solution was to use the paper covering the top adhesive between the bumpers and the floor. Over time, I could see how these would become substantially stuck to whatever it was sitting on. I have seen other reviews where people complain that this material leached into and stained their wood cabinets too.

You probably won't find better sound/vibration isolation for the price, but be prepared to place something underneath these or you may have sticking or staining down the road. (Posted on 1/26/2016)
Dehumidifier Vibration Isolation Review by Amazon
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As with the other reviewers I was skeptical that these relatively small pads would be able to solve my vibration problems. We wanted to get our dehumidifier up off the floor so it could drain directly into a drain versus emptying the bucket. Once we mounted it there was noticeable vibration transferred from the unit into the studs causing the floor above it to noticeably vibrate and make a decent racket.

I supported the frame of the unit directly on the Sorbothane pads. While the unit itself is still noisy (as with any dehumidifier), the vibration transfer to the shelf and studs is essentially gone and we no longer know when the unit cycles unless we're in the basement.

Great product! (Posted on 1/26/2016)
Works very well! Review by Amazon
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I got these to replace the hard plastic feet on my subwoofer. The vibrations from it were going through the floor and down into our kitchen below. Now after sticking these on, the subwoofer still sounds great in the room, but there is no sound on the first floor ceiling at all! I am amazed they work so well! Just make sure you're within the weight limits so you don't compress them, which would rob them of some of their vibration absorption ability. (Posted on 1/26/2016)
Works better than I thought! Review by Amazon
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I have to admit that I was skeptical when I bought these. I use them to absorb all the vibration caused by my watercooled gaming PC as it sits on hardwood floor and so all the minor hi frequency vibrations from the 10+ cooling fans gets ridiculously amplified. Solved my problem :-) (Posted on 1/26/2016)
sorbothane Review by Amazon
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great isolation, decoupling pads for studio monitors (Posted on 1/26/2016)
I like it Review by Amazon
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I bought this product to isolate vibration I'm often getting while working on my microscope offshore on a ship. Pads do help but they do not eliminate my problem. I guess that it might not have anything to do with the quality of the product. I just needed to buy a little different pads, however I was recommended to try this type after description of my problem. I think it was the best option on the market for my problem even though I have not solved my problem completely. (Posted on 1/26/2016)
these feet are not good for turntable vibration Review by Amazon
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i know sorbethane is supposed to be good for decreasing vibration. I think these hemisphere bumpers are a mismatch for TURNTABLE vibrations. the turntable feet SLIDE on the pads and are unstable. It is very difficult to keep the table aligned correctly - and the vibration was still there. I read that these supports would be good to put underneath a TT. In my experience they are not. (Posted on 1/26/2016)

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