[greenhorn]

how do the various diy materials compare? (tar felt, pure felt, yoga mat)
I already have some thick felt stuck to my door pads (see my post #171 earlier, second pic - in the previous page)
But I'm still getting lots of vibrations

I have had some good experience with tar felt sheets (adding them to a really old pair of sony bookshelf speakers running philips HiQ speakers really helped them clean up the low end despite the flimsy plywood cabinet

I find the tar felt sheets adhesion make it fairly easy to apply, and stick well

[condor]

Originally Posted by greenhorn

how do the various diy materials compare? (tar felt, pure felt, yoga mat)
I already have some thick felt stuck to my door pads (see pic above)
But I'm still getting lots of vibrations

Of the three, tar felt would be better. Warm it up a little before you apply - and it should stick easier. You could add more than one layer to make it heavier. (Get a full roll of it - 10m or may be 20m)
(Warming up may even be by keeping it in the afternoon sunlight)

Else, get some proper Butyl-Rubber sheets. (if you get it in cheap & bulk, let me know too)

The felt may be absorbing some sound, but will not reduce vibrations. Yogamat is also not going to absorb vibrations.

[amitsingh08]

Hi Navin & DerAlte - since you'll are experts, can I check if a my simple solution holds promise?

To reduce noise entering cabin (sound deadening & dampening) should the floor be damped first? Before bothering with car doors?

And if floor dampening crucial, then would an extra set of thick rubber floor mats get job done? Thanks!

[navin]

Originally Posted by amitsingh08

To reduce noise entering cabin (sound deadening & dampening) should the floor be damped first? Before bothering with car doors?

And if floor dampening crucial, then would an extra set of thick rubber floor mats get job done? Thanks!

The biggest issue with floor damping is the carpeting. If the damping goes under the carpet, the carpet will rarely if ever fit properly again. It might be better to live with any/all underbody treatment (Wurth makes a spray that is useful) instead of damaging the car's interiors.

[Prakritij]

Originally Posted by navin

The biggest issue with floor damping is the carpeting. If the damping goes under the carpet, the carpet will rarely if ever fit properly again. It might be better to live with any/all underbody treatment (Wurth makes a spray that is useful) instead of damaging the car's interiors.

Reviving an old thread here.
I found this material. Link:https://diyaudiocart.com/Bitumen-She...search=bitumen
Please tell if this can be used in the doors and hatch of a car. My aim is to reduce vibrations, road noise and better sound quality in that order.
Thanks

[navin]

Originally Posted by Prakritij

Please tell if this can be used in the doors and hatch of a car.
Thanks

It contains no asbestos so I don't see why not.

[Prakritij]

After a lot of searching, I found it to be very VFM so considered taking your advice. Thanks a ton

[redswift]

Originally Posted by Prakritij

After a lot of searching, I found it to be very VFM so considered taking your advice. Thanks a ton

Did you try it out? Please do share your installing experience and do comment on the improvement in noise reduction.

[Prakritij]

Originally Posted by redswift

Did you try it out? Please do share your installing experience and do comment on the improvement in noise reduction.

Not yet. Will do it once time permits and update here. The material is very much VFM compared to the likes of Dynamat, etc. Hope it serves the purpose.

[greenhorn]

Originally Posted by kiran1103

Flashing Tape s a self adhesive tape, comprising of an aluminium foil backed by a flexible modified bitumen adhesive compound. It is used for the repairing of pipes, joints, glazing systems etc.

I found this flashing tape on Amazon. Has anyone tried this or similar?
3A ASSOCIATES Bitumen Flashing Aluminium Coated Waterproofing, Roof, Tank Leakage Self Adhesive Tape (100 mm x 10 m) https://www.amazon.in/dp/B07L8C64JR/...CZ9Q6BSN9XY7J5


I'm logging for something to coat my floor to reduce road noise and my doors for a bit of damping

[condor]

Originally Posted by greenhorn

I found this flashing tape on Amazon. Has anyone tried this or similar?

I'm logging for something to coat my floor to reduce road noise and my doors for a bit of damping

Should work. Looks to be Butyl Rubber. Any idea what's the thickness of the tape ?