product came on time and ez to use

We have a little sump pump that is in a bucket. It was driving me up the wall.

So I bought these in hopes it'd absorb some of the sound. It's fabulous!!

We just stacked two under the bucket, put one on top kind of to help catch sounds that were amplifying out due to the bucket, and the remaining got leaned against the bucket to just catch some sound. I'm not real sure the ones propped at the side do anything but we didn't know what to do with them so we figured it couldn't really hurt to just prop them there.

We didn't actually stick them to it so I cannot say how sticky they are. It's a plastic bucket and I think he is wanting to move them to stick to around a metal bucket eventually. If the sticky option turns out to not work, I have various glue we can use for sticking stuff to metal so even if it's gone bad by the time he tries that, it's all good.

These things really smell horrible by the way. I was not expecting that but it's okay since it's in the basement, and I don't have to smell it. The smell doesn't creep up into the house though.

(Okay it's actually been a few days since I wrote that but had not hit submit and forgot. I didn't know there was a save feature on writing reviews thank you for that Amazon because my browser crashed.

Ever since installing these under/around that bucket, it's been LOTS quieter. I barely can tell when the pump kicks on, even in the night when it's the quietest time in the house. It's still in the plastic bucket so I have no update to offer yet on the metal one. I still think the metal one's a bad idea lol. Most of the time I don't even notice it has run, we've had to go check it a few times to make sure the hose is fine because neither of us is sure when did it actually last kick on?

No more flinching every time it kicks on, no more sensory overload from the horrible sound, and no more having to consider buying earplugs that I didn't really want to wear 24/7! Thanks very much that these things exist!)

It's great. 10/10. Sump pump noisy? In a bucket? Here you go, problem solved, or at least quieter.

I was a little hesitant to but it at first but seeing the positive reviews outweighed the negative ones, I pulled the trigger. The product arrived earlier than I expected and I am very thankful for that as I installed it together with the separates that I ordered for my front doors. Installation is not that hard especially if you use a roller. But one thing you really have to do is to clean the surface area where you are going to stick it with. So after installation of both the canopus sound deadening mat and the 6.5 separates speakers, I can't believe the clarity of the meds and tweets produced without resonance from the door panel.
This product is highly recommended for your DIY car audio system upgrade.

This CANOPUS Car Sound Deadening Mat is very similar to Killmat.

I have used Noico mat for my 2010 Camry, Killmat for my 2015 Camry, and Amazon basic mat for My 2021 RAV4 Hybrid. I used up 36 sq ft Amazon basic mat for my 2021 RAV4. I needed more mat for my 2021 RAV4. So I ordered 18 sq ft of CANOPUS Car Sound Deadening Mat. I installed Canopus mat mainly on wheel well of my RAV4. All these mat suppose to reduce metal vibrations. They are probably all made in China. They are all similarly butyl based. None of them claim the percentage of other components. However, they are slightly different. The differences are mainly in adhesion when apply to the metal surface.

They suppose to reduce car road noise. While car road noise are mainly generated by tire rubber slapping on the concrete or asphalt road. The sound frequency of road noise are mainly in 800Hz to 1200Hz. It wound be better if any of these manufacture to test what frequencies these mat are most effective. The markers of these mats are demonstrating effectiveness of these mats with a patch of mat on a gong. Applying a small piece of mat can eliminates the ring of gong, which are ringing at 300 and 3500 Hz. The hard part to reduce car road noise is that noise penetrating into car from every where, it hard to completely apply these sound deadening mat to every metal surface of car. The main penetrating point should be rear wheel well. That's why all SUVs are nosier and cars unless the price difference is five times and more. Applying sound deadening mats are very labor intensive, manufactures will not spend that much labor to apply these mats to their cars at the labor cost of $100 or so per hr. However, apply these mat only 25% metal surface will give maximum return of investment. The more will only give diminishing returns. 2010 and 2015 Toyota Camry comes with about 16 sq inch of similar sound deadening mat. While RAV4 dose not have any mat on the four doors, and only has a little on the 5th door. That's one of reasons makes Camry quieter stock than RAV4. After applying these mats, the doors on RAV4 as well as Camry feel much solid when closing with a solid thump, not an empty tin can sound any more.

This Canopus mat are similar to Killmat when apply to the metal surface, are stickiest among these four mats. Noico mat is medium sticky. Amazon basic is least sticky. When handling these mat, disposable gloves are must for Canopus and Killmat, recommended for Noico and optional for Amazon basic. However, when applying these mats to the metal surface, a heat gun or hair dryer is must for Amazon basic, recommended for Noico, and optional for Canopus and Killmat. I warm the metal surface before applying the mat to the surface. I recommend a roller for application, especially for Amazon basic.

I have put Canopus and Amazon basic mat in -20C freezer, both of them are still malleable and suppose to work in winter time. However, in -80C freezer, both of become brittle. In -80C, only metal and wood can still maintain most of characteristics of normal temperature anyway.

I have made my RAV4 quieter by at least 3 db using these mats and other sound insulators.

If I need to buy again, I would recommend Canopus and Killmat when they are priced similar.

I bought this to install new speakers on my K5 and the product worked better than I thought it would and was of higher quality than I thought it would be. Canceled so much road noise can't wait to do my rear doors.