Carnines Posted October 27, 2015 Author Report Share Posted October 27, 2015 6 layers is the dumb. More layers can actually hurt you to a point. Just do one and add if needed Well what I did with the doors is mostly one layer and a double over in the weak point of the door which stiffened it up quite a bit. Quote Link to comment Share on other sites More sharing options...
CleanSierra Posted October 27, 2015 Report Share Posted October 27, 2015 It's not all deadener. It's a combination of deadener, ccf and mlv This 100%. The purpose of deadener is to reduce/eliminate panel resonance. Closed cell foam is a decoupler. Mass loaded vinyl or MLV does just that, adds mass. Guys that do multiple layers are only achieving adding mass when they do it. Many guys think multiple layers are better, not knowing how deadener works. Read up on CLD tiles(butyl backed deadener), MLV and CCF , BEING used together. Quote Im not the one you want to try to troll. Just a fyi for you. Link to comment Share on other sites More sharing options...
yurvalentine Posted October 27, 2015 Report Share Posted October 27, 2015 It's not all deadener. It's a combination of deadener, ccf and mlvThis 100%. The purpose of deadener is to reduce/eliminate panel resonance. Closed cell foam is a decoupler. Mass loaded vinyl or MLV does just that, adds mass. Guys that do multiple layers are only achieving adding mass when they do it. Many guys think multiple layers are better, not knowing how deadener works.Read up on CLD tiles(butyl backed deadener), MLV and CCF , BEING used together. Bingo. Throwing more and more deadner in is not the solution. Quote Link to comment Share on other sites More sharing options...
Second Skin Posted October 27, 2015 Report Share Posted October 27, 2015 The advice you are receiving is correct, ONE layer of a high quality American made butyl rubber like Damplifier Pro is usually enough to stop the vibration and strengthen the metal. A second layer will make the roof stronger and add more mass but your best bet would be to add CCF and MLV to the roof too. Our all in one product Luxury Liner Pro has both CCF/MLV infused into one product but at 1 lb per sqft you will need to find some heavy duty adhesive to keep it stuck to the roof (most high temp spray adhesives including ours will not hold that weight upside down on the roof) you most likely would need contact cement. If you are insisting on doing multiple layers we would recommend doing one layer of Damplifier Pro, one layer of Spectrum liquid sound deadening (1-2 coats to reach 2mm thickness) , and then top it off with Heat Wave Pro (an OEM jute material that is lighter weight and used on ceilings and hoods) to achieve more sound deadening. If you have a way of holding the heavy LLP or MLV up there than you would replace the HWP with the MLV/CCF combo. Quote Whether you are restoring a classic muscle car, building an audio system monster, or trying to give yourself a bit of silent luxury on your daily commute, we have a product or combination of products that will help you achieve your goals while saving money and save time. Look around our site, educate yourself and make the choice that is right for you. Over built to over perform - because user error, bad batch, and faulty install are excuses that other companies use! Link to comment Share on other sites More sharing options...
Carnines Posted October 27, 2015 Author Report Share Posted October 27, 2015 The advice you are receiving is correct, ONE layer of a high quality American made butyl rubber like Damplifier Pro is usually enough to stop the vibration and strengthen the metal. A second layer will make the roof stronger and add more mass but your best bet would be to add CCF and MLV to the roof too. Our all in one product Luxury Liner Pro has both CCF/MLV infused into one product but at 1 lb per sqft you will need to find some heavy duty adhesive to keep it stuck to the roof (most high temp spray adhesives including ours will not hold that weight upside down on the roof) you most likely would need contact cement. If you are insisting on doing multiple layers we would recommend doing one layer of Damplifier Pro, one layer of Spectrum liquid sound deadening (1-2 coats to reach 2mm thickness) , and then top it off with Heat Wave Pro (an OEM jute material that is lighter weight and used on ceilings and hoods) to achieve more sound deadening. If you have a way of holding the heavy LLP or MLV up there than you would replace the HWP with the MLV/CCF combo. I will do a second layer on the roof and a layer of CCF on the deadener. Quote Link to comment Share on other sites More sharing options...
MrSkippyJ Posted October 27, 2015 Report Share Posted October 27, 2015 If you are adding CCF why bother with a second layer? Quote F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
ToNasty Posted October 27, 2015 Report Share Posted October 27, 2015 I think 2 layers of that deadener and a layer of ccf is waaaaay overboard for your truck. Hopefully the headliner will go back on easily Quote ***Super Sellers List***http://www.stevemeadedesigns.com/board/topic/25829-super-sellers-buyers Link to comment Share on other sites More sharing options...
CleanSierra Posted October 27, 2015 Report Share Posted October 27, 2015 No need for 2 layers as mentioned. Quote Im not the one you want to try to troll. Just a fyi for you. Link to comment Share on other sites More sharing options...
Carnines Posted October 27, 2015 Author Report Share Posted October 27, 2015 No need for 2 layers as mentioned. I'll get a feel for it when the headliner comes down.. my 2 shallow JL's on a 1k amp would flex the roof so 7x the power on 4 12's should make it get nasty. Others have warned me about how bad the flex is on a titan roof. Won't really know until all is said and done I guess but thanks for the advice. Quote Link to comment Share on other sites More sharing options...
ToNasty Posted October 27, 2015 Report Share Posted October 27, 2015 You are over thinking it. 1 layer of deadener and a layer of ccf will be more than enough. You'd be suprised how much 1 layer of good deadener will fix it Quote ***Super Sellers List***http://www.stevemeadedesigns.com/board/topic/25829-super-sellers-buyers Link to comment Share on other sites More sharing options...
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