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I have seen many different types of CCF with differing density ranges. Is there a best type for use under MLV and thickness?
Best type of CCF for use under MLV
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Well from personal experience I'd not go with RAAM audio. After all the glorious reviews it received I gave it a try and it's was a big disappointment. VERY, thin and pretty much useless as it didn't reduce any sound in the back of my Lexus RX cargo area. I will be installing second skin in the future.
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Ccf doesn't reduce noise by any noticeable amount. You need a mass loaded barrier foe that, which raamat doesn't sell. If you use overkill from second skin to reduce noise, the results wouldn't be any better.
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Duly noted. I'd skip the ccf (step two) and go straight to mlv then. Then again having ccf close to the thickness of a quarter does very little. What's the point?
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I believe that the point of CCF is to isolate vibration and transmission between two adjacent surfaces…used only by itself, it does nothing to quiet anything…CCF does NOT dampen panels and it does NOT stop sound transmission. That being said, when used in conjunction with CLD and then MLV, it increases the effectiveness of both by preventing remainaing panel vibrations from being transmitted to and through the MLV. You do NOT want to skip the CCF!!
It can also be used to prevent rattled between adjoining objects, which does help quiet the interior.
It can also be used to prevent rattled between adjoining objects, which does help quiet the interior.
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In terms of thickness and types of CCF, a 1/8" layer is effective. After using both, I feel that the CCF that Don at sounddeadenershowdown.com sells is a higher quality foam material then what Raam sells, though the ease of use of the psa backing of the Raam ensolite is convenient as long as you use it in areas where it will NOT need to be removed.
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1/8" neoprene is inexpensive and has slightly better qualities than regular ccf. No need to exclude it or the use of any ccf for decoupling purposes. I use it underneath mlv beneath the carpet and sandwiched between door panels along with mlv. Using mlv alone will still transmit rattles.
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I understand this. I have one layer of cld down paired with the ccf and the cost to benefit ratio for reducing the noise in the cargo area was negligible.
I commute 4k a month 2 hrs each way and know every rattle and noise. The road noise is still present. Did it reduce it a little? Not imo.
I'm curious on what the slightly better qualities of neoprene are?
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Neither CLD or CCF is used for reducing road noise…that is the job for MLV (or sheet lead..lol).
If you take the time to add a layer of MLV to the CLD and CCF that you have already installed, you WILL notice a marked reduction in road noise!! It is important to note that these materials ALWAYS work best when used in conjunction with each other rather then alone.
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So what density of CCF is best? I see many different weights and firmness listed by CCF vendors. I figured 1/8"-1/4" thickness but was curious about the density. I guess to maximize the MLV a soft CCF would be best to better isolate it from the CLD layer.
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Probably "crush" properties. You do not want you ccf to crush.
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Bah! Snake oil I say!
Buy THIS and THIS then it'll make your car quiet. You're good but...no. Lol
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Seafish is dead right, mlv is what reduces road noise, and you must use 100% coverage of both ccf and mlv for it to work. Cld is for reducing panel resonance only.
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I would agree with this statement…it is also why I prefer the CCF from sds as it is substantially more "crush resistant" then Raams. Not sure if neoprene or Dons ccf is less expensive.
A little thick, but much better than standard ccf. I found that it has property's that on its own deaden sound better than MLV.
Shop Leggett & Platt 9.12mm Rubber Carpet Padding at Lowe's
Shop Leggett & Platt 9.12mm Rubber Carpet Padding at Lowe's
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Correct me if Iam wrong, but going with a 1/4" CCF vs 1/8" offers zero advantages....its simply a decoupler...if anything, get thicker MLV if you have the room.
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There are advantages, but not enough to be noticeable at all. Like you said, better to get a thicker, denser barrier layer.
I believe 1/4" is recommended for use in the floor footwells (think of where your floormats go) to add a little more cushion. 1/8" everywhere else.
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Yes, 1/4 for the floors but in reality 1/8 is good. Or simply double it on the areas where feet will be most of the time. like a large square in that area.
I have not used any CCF, I used yoga mats, they come in 1/8 or less, 3/16" and 1/4, no need to use thicker than 1/4"
I like the yoga mats because they have a texture or tiny squares that makes it easier to cut.
Think about a yoga mat, it needs to be very resistant to water, liquids chemicals, sweat etc, and they do block water very well, they have like a shiny layer on the top like rubber that makes block any liquid.
CCF may block water to some degree but may look wet and take some time to dry even though liquids will not make it al the way through. Something
I would not have to worry with some yoga mats.
I have not seen any ensolite or CCF sold but I like the fact I can also choose the color I want using yoga mats.
I have not used any CCF, I used yoga mats, they come in 1/8 or less, 3/16" and 1/4, no need to use thicker than 1/4"
I like the yoga mats because they have a texture or tiny squares that makes it easier to cut.
Think about a yoga mat, it needs to be very resistant to water, liquids chemicals, sweat etc, and they do block water very well, they have like a shiny layer on the top like rubber that makes block any liquid.
CCF may block water to some degree but may look wet and take some time to dry even though liquids will not make it al the way through. Something
I would not have to worry with some yoga mats.
I have not seen any ensolite or CCF sold but I like the fact I can also choose the color I want using yoga mats.
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