Sound Deadening Material

[Chris0628]

Sorry guys.... it's Actually @ P@tco lanka..... my bad.... so anyone have any experience in using this material ?

[Chris0628]

Hi Guys.... i tried calling around but no one seems to be doing Sound Deadening specifically. So i was thinking of getting the carpet done from a car carpeting place & under the carpet before they lay it..maybe put another thick material to get some sound reduction.... any idea ?

[mistaken_ID]

Any idea about the macfoil. because one of ma friend said that he used it and it was ok but not 100%.

[Chris0628]

Any idea about the macfoil. because one of ma friend said that he used it and it was ok but not 100%.

i also heard abt it... not sure....MacFoil has another product McFoam Sheet / Slabs dont know if that would work or not...

[SeanD]

What exactly are you trying to achieve here?

[Chris0628]

well im trying to reduce the noise coming in...road noise, tyre noise, engine noise...etc

[Chris0628]

For road noise reduction, there are several options that we use depending on the type of car.

Under Coat Spray (Available with paint shops and with garages that do painting. CIC and Wurth have their brands as well). You can determine the tickness on application. A similar subtance is used on the lining of the bin on double cabs. Most ppl apply this as a thin layer to prevent corrosion.

Wurth Sound Deadening panels - These are quite effective but wasn't viable for fleet use due to the cost. You can almost get euro car levels of insulation if you use enough of this stuff. I last got a quote about a year back but can't remember the prices.

McFoil - We use this mostly in vans mainly as a heat reflector against engine heat but there is a certain degree of noise reduction. Its a fairly cheap option.

There is a lot of information online about noise reduction but never had the time to implement

Wurth Sound Deadening panels ? where can i buy them ?

[SeanD]

well im trying to reduce the noise coming in...road noise, tyre noise, engine noise...etc

You would probably need to spend a fair bit of money if you want anything more than a "noticeable" reduction. Although you haven't mentioned in your posts, I would assume from your profile that you have a Civic EK-3. You really need to first identify where the noise is getting into your car, before spending money on treating areas that are really not going to give you much, if any, benefit.

For example, simply packing your car with insulation is not going to do much about engine noise if you don't know how the engine noise is being transmitted to the cabin. It could be through thinner panels, hollow pillars, or simply the fact that the body panels are vibrating enough to cause a high level of noise in the cabin. This is not something you can just "fix" by packing it with insulation and foil- it may work in some cars, and do absolutely nothing in others. I'm not qualified in acoustics or auto-body design, but I do have a physics degree (knew that'll come in useful someday!) and know enough about the subject to tell you that a lot of that stuff being sold in the shops is simply snake oil, and the ones that work will not work universally across every car unless you know how exactly your car lets in the noise.

I'm willing to bet that one of the key differences in the noise level of cheaper cars vs more expensive Euro-cars is the method used to prevent the body panels transferring vibrations to the interior. If you need that kind of isolation, then get a Eurocar would be my suggestion. Next time you see a Merc of a Bmw, go rap you knuckles against the A pillar and door panels, then come back and do that on any Japanese car. You'll see what I mean.

It's like the studios in Sri Lanka that coat their walls with normal yellow Arpi-foam, under some sort of impression that that's going to "soundproof" the place. It does not work like that. Acoustic foam is very different to Arpifoam, and the cuts and thickness of it have to correspond to the wavelengths you're trying to block. If you're serious about doing this, then I suggest you look in to and import some proper material. That Wurth stuff might work, but don't fool around with other unproven crap. Might look into getting a different set of tires too, maybe that's the cause of some of your noise. Earplugs would work too.

Or better yet, just turn up the radio a bit louder. Don't worry about not hearing something important outside the car when you do that- if you had got the cabin as quiet as you wanted to, you wouldn't have heard that anyway

[Chris0628]

You would probably need to spend a fair bit of money if you want anything more than a "noticeable" reduction. Although you haven't mentioned in your posts, I would assume from your profile that you have a Civic EK-3. You really need to first identify where the noise is getting into your car, before spending money on treating areas that are really not going to give you much, if any, benefit.

For example, simply packing your car with insulation is not going to do much about engine noise if you don't know how the engine noise is being transmitted to the cabin. It could be through thinner panels, hollow pillars, or simply the fact that the body panels are vibrating enough to cause a high level of noise in the cabin. This is not something you can just "fix" by packing it with insulation and foil- it may work in some cars, and do absolutely nothing in others. I'm not qualified in acoustics or auto-body design, but I do have a physics degree (knew that'll come in useful someday!) and know enough about the subject to tell you that a lot of that stuff being sold in the shops is simply snake oil, and the ones that work will not work universally across every car unless you know how exactly your car lets in the noise.

I'm willing to bet that one of the key differences in the noise level of cheaper cars vs more expensive Euro-cars is the method used to prevent the body panels transferring vibrations to the interior. If you need that kind of isolation, then get a Eurocar would be my suggestion. Next time you see a Merc of a Bmw, go rap you knuckles against the A pillar and door panels, then come back and do that on any Japanese car. You'll see what I mean.

It's like the studios in Sri Lanka that coat their walls with normal yellow Arpi-foam, under some sort of impression that that's going to "soundproof" the place. It does not work like that. Acoustic foam is very different to Arpifoam, and the cuts and thickness of it have to correspond to the wavelengths you're trying to block. If you're serious about doing this, then I suggest you look in to and import some proper material. That Wurth stuff might work, but don't fool around with other unproven crap. Might look into getting a different set of tires too, maybe that's the cause of some of your noise. Earplugs would work too.

Or better yet, just turn up the radio a bit louder. Don't worry about not hearing something important outside the car when you do that- if you had got the cabin as quiet as you wanted to, you wouldn't have heard that anyway

Thanks for the very detailed feedback & yes mine is a EK3. i have been doing some research for the passed 2 weeks (google, google, google) and one of the most common areas mentioned in almost every article regarding vehicle sound deadening was the doors. so today i went to P#tco & got their sound deadening material applied for the front doors and guess what.... there is a noticeable improvement in the noise insulation coming from the outside... the engine noise is almost the same (i think the firewall needs to be done up for it to reduce) but the road noise & noise over pot wholes, rough roads has reduced by a noticeable amount. it cost me 3300 LKR ( 3 packets, each packet has 2 sheets. ). i'm thinking of a DIY for the other 2 doors. only thing is the guy @ P#tco used a heat-gun to stick the material better on to the door panels... but i think i should be able to manage as the sheets are like a sticker with a adhesive surface one one side....

I would certainly recommend it to anyone thinking of Sound Deadening.... only downside is if someday you need to do any repairs to the door (shutter, wiring ...etc) then you will have to spend some extra time getting the SD material out :-)

So far so good... i will keep you guys updated of the progress.......next is getting the floor panels.. don't think i'll use the same material...doing more research on that as well......

P#tco has another product from USA which is very expensive... 1 sheet is abt 5000LKR and it's abt twice the Sq Ft of the above ones i used for the doors.... but this is very thick & mostly used for the car floor... NOT GONNA USE THAT way too expensive

Thanks everyone for all the feedback and advice..... if you guys come across any info please update this thread....

[SeanD]

P#tco has another product from USA which is very expensive... 1 sheet is abt 5000LKR and it's abt twice the Sq Ft of the above ones i used for the doors.... but this is very thick & mostly used for the car floor... NOT GONNA USE THAT way too expensive

It's thick for the very reason I told you. Anyway I would imagine that insulating the floor is harder as well. Sounds like you're on your way to what you need, let us know how the engine muffling turns out. And yes, google is your friend

[Chris0628]

It's thick for the very reason I told you. Anyway I would imagine that insulating the floor is harder as well. Sounds like you're on your way to what you need, let us know how the engine muffling turns out. And yes, google is your friend

Will do..... :-)

[Chris0628]

Hi guys..... does anyone have experience with using W@rth soundproofing materials ?

[isurujosh]

Hi guys..... does anyone have experience with using W@rth soundproofing materials ?

hey why don't you consult Vasant on this. he's an expert on the subject. he spent years in middle east attending to mercs, beemers, on NVH issues as well. after all you already have experienced what the man is capable of ney.

[KI4120]

Thanks for the very detailed feedback & yes mine is a EK3. i have been doing some research for the passed 2 weeks (google, google, google) and one of the most common areas mentioned in almost every article regarding vehicle sound deadening was the doors. so today i went to P#tco & got their sound deadening material applied for the front doors and guess what.... there is a noticeable improvement in the noise insulation coming from the outside... the engine noise is almost the same (i think the firewall needs to be done up for it to reduce) but the road noise & noise over pot wholes, rough roads has reduced by a noticeable amount. it cost me 3300 LKR ( 3 packets, each packet has 2 sheets. ). i'm thinking of a DIY for the other 2 doors. only thing is the guy @ P#tco used a heat-gun to stick the material better on to the door panels... but i think i should be able to manage as the sheets are like a sticker with a adhesive surface one one side....

I would certainly recommend it to anyone thinking of Sound Deadening.... only downside is if someday you need to do any repairs to the door (shutter, wiring ...etc) then you will have to spend some extra time getting the SD material out :-)

So far so good... i will keep you guys updated of the progress.......next is getting the floor panels.. don't think i'll use the same material...doing more research on that as well......

P#tco has another product from USA which is very expensive... 1 sheet is abt 5000LKR and it's abt twice the Sq Ft of the above ones i used for the doors.... but this is very thick & mostly used for the car floor... NOT GONNA USE THAT way too expensive

Thanks everyone for all the feedback and advice..... if you guys come across any info please update this thread....

M sure P$TCO lanka has done a good job...cz dey use this Sosche Acumat (refer: http://www.scosche.com/products/sfID1/151/...productID/1042) , and it really works....

[KI4120]

hey why don't you consult Vasant on this. he's an expert on the subject. he spent years in middle east attending to mercs, beemers, on NVH issues as well. after all you already have experienced what the man is capable of ney.

Isuru, who z dat Vasant ? if u have any details of Vasant..pls share with me or PM me...thnx...

[Chris0628]

hey why don't you consult Vasant on this. he's an expert on the subject. he spent years in middle east attending to mercs, beemers, on NVH issues as well. after all you already have experienced what the man is capable of ney.

Yeah.. i did contact Vasant.... he said to use regular tar-sheets under the carpets..... wanna do more r&d & see all my options before i make a decision regarding rest of the car...

@ the moment i have done up 2 door with the product sold by P@tco .. this is not Accumat, i used the cheaper Chinese product they have & it worked.....

as the the other door, i will be using the same as well... but the question is what to use under the carpets...thinking of a combination of McFoil (Reduce the amt of heat coming in), a rubber sheet (reduce the amt of noise) & Tuf-Kote for the wheel arches from Kl@@n Park...

what do u guys think ???

[Chris0628]

bumping this back up again....

[Sylvi]

Yeah.. i did contact Vasant.... he said to use regular tar-sheets under the carpets..... wanna do more r&d & see all my options before i make a decision regarding rest of the car...

@ the moment i have done up 2 door with the product sold by P@tco .. this is not Accumat, i used the cheaper Chinese product they have & it worked.....

as the the other door, i will be using the same as well... but the question is what to use under the carpets...thinking of a combination of McFoil (Reduce the amt of heat coming in), a rubber sheet (reduce the amt of noise) & Tuf-Kote for the wheel arches from Kl@@n Park...

what do u guys think ???

Sir,

Re sound Proofing I want to comment as for my Knowledge this is called Sound Transmission Control (STC).

This subject is a very vast subject and there are lot of forums on the web about same.

For Automobiles and Buildings. There are meters to test before and after the amount of (STC).

I suggest with my Experience to control out side sounds entering inside cabin of a motor Vehicle best is to use Fiber glass Wool sheet which has a thin layer of aluminum foil. Which is freely available in Srilanka used in Air conditioning industry.

Paste inside door paneled frames if necessary hood lining also removed remove all seats and original carpets.

Paste on to the flow board above said Fiber glass sheet fix all removed units back.

Under body there are lot of chemicals petroleum based to apply few coatings something like tar which will dry in few hours.

This application must be done when the vehicle is new or after a steam wash as it will stop corrosion also.

I have used same on many Vehicles and happy with the performance.

Wijesinghe.

[Chris0628]

Sir,

Re sound Proofing I want to comment as for my Knowledge this is called Sound Transmission Control (STC).

This subject is a very vast subject and there are lot of forums on the web about same.

For Automobiles and Buildings. There are meters to test before and after the amount of (STC).

I suggest with my Experience to control out side sounds entering inside cabin of a motor Vehicle best is to use Fiber glass Wool sheet which has a thin layer of aluminum foil. Which is freely available in Srilanka used in Air conditioning industry.

Paste inside door paneled frames if necessary hood lining also removed remove all seats and original carpets.

Paste on to the flow board above said Fiber glass sheet fix all removed units back.

Under body there are lot of chemicals petroleum based to apply few coatings something like tar which will dry in few hours.

This application must be done when the vehicle is new or after a steam wash as it will stop corrosion also.

I have used same on many Vehicles and happy with the performance.

Wijesinghe.

Thanks for the info... is there anyone or any place that does this properly ?

[mistaken_ID]

Sir,

Re sound Proofing I want to comment as for my Knowledge this is called Sound Transmission Control (STC).

This subject is a very vast subject and there are lot of forums on the web about same.

For Automobiles and Buildings. There are meters to test before and after the amount of (STC).

I suggest with my Experience to control out side sounds entering inside cabin of a motor Vehicle best is to use Fiber glass Wool sheet which has a thin layer of aluminum foil. Which is freely available in Srilanka used in Air conditioning industry.

Paste inside door paneled frames if necessary hood lining also removed remove all seats and original carpets.

Paste on to the flow board above said Fiber glass sheet fix all removed units back.

Under body there are lot of chemicals petroleum based to apply few coatings something like tar which will dry in few hours.

This application must be done when the vehicle is new or after a steam wash as it will stop corrosion also.

I have used same on many Vehicles and happy with the performance.

Wijesinghe.

where can i buy those Fiber glass Wool sheets? and how do they called it in the market? coz when i say Fiber glass Wool sheet most shopkeepers would say "ehema ekak neha mahattaya".... btw thanks for the info!

Edited March 8, 2010 by mistaken_ID

[Ripper]

where can i buy those Fiber glass Wool sheets? and how do they called it in the market? coz when i say Fiber glass Wool sheet most shopkeepers would say "ehema ekak neha mahattaya".... btw thanks for the info!

i think things like mc-foil also work to a point like this and that's available in most hardware shops!

[Sylvi]

where can i buy those Fiber glass Wool sheets? and how do they called it in the market? coz when i say Fiber glass Wool sheet most shopkeepers would say "ehema ekak neha mahattaya".... btw thanks for the info!

Sir,

This fiber glass sheet is available at M/s, AJANEE TRADING COMPANY LIMITED No, 71 UNION PLACE Colombo 00200 TELEPHONE Numbers are 2325068 2304570 2433543. You have to request as for Air conditioning duct masking.

There are so many Other importers who import this to Srianka as this time I cannot contact them will do by tomorrow morning and give you the info.

I contacted them after 5pm they Informed me that what they have is 1 Inch thick by 4 Feet wide and 15 Yards they quoted me one role is less than Rupees 5000.00.

Very recently I did a 3300 square feet Karaoke dancing flow (STC) with 2 Inch foam rubber sheet. this cannot be applied for Automobiles. I have (STC) experience in my field in USA done very little in Srilanka.

There are several cheap things that you can try I do not know their performance under coat also so many applications.

Can you get me on Email <[email protected]>.

Wijesinghe.

[SpEeD FrEak]

Sir,

Re sound Proofing I want to comment as for my Knowledge this is called Sound Transmission Control (STC).

This subject is a very vast subject and there are lot of forums on the web about same.

For Automobiles and Buildings. There are meters to test before and after the amount of (STC).

I suggest with my Experience to control out side sounds entering inside cabin of a motor Vehicle best is to use Fiber glass Wool sheet which has a thin layer of aluminum foil. Which is freely available in Srilanka used in Air conditioning industry.

Paste inside door paneled frames if necessary hood lining also removed remove all seats and original carpets.

Paste on to the flow board above said Fiber glass sheet fix all removed units back.

Under body there are lot of chemicals petroleum based to apply few coatings something like tar which will dry in few hours.

This application must be done when the vehicle is new or after a steam wash as it will stop corrosion also.

I have used same on many Vehicles and happy with the performance.

Wijesinghe.

Glass wool is poisonous if inhaled,So there is a chance of it being inhaled by a passenger if it escapes the door panels.

[Chris0628]

Hey you guys know abt Mass Loaded Vinyl ????

is it available in SL ?

[maliths]

There are two main methods to control noise here:

1. Sound Insulation - High density material is used to insulate (stop the noise from entering). Hard board, metal etc. Bitumen like sheets pasted to the inside of the panels help insulate noise. Most cars have this type of material pasted at specific locations on the inside under the carpets.

2. Sound Absorption - Typically open cell low density material is used to absorb and dissipate the sound energy (glass wool, open cell foam etc). When the sound waved enter the material the porous nature of the structure helps dissipate the energy (sound waves bounce around the inside of the material) in the sound waves and this is converted to heat energy.