Ive just finished fitting to my LR 110 CSW almost all the bits contained in the Noisekiller sound-dampening kit. As my expectation wasnt high, Im perhaps not too disappointed with the results. Suffice to say that the noise is far from killed.
My first question: as regards noise-dampening /soundproofing, is it a case of the more the better in terms of the depth of dampening material on any particular area? In other words, if I add more material on top of the Noisekiller sheets Ive fitted, can I expect further improvement?
Second: most of the stuff Noisekiller supplied is 6-mm foam bounded on both sides by rubber app. 1.5 mm thick (total thickness 9mm). I dont know whether this is high-, medium- or low-quality stuff in terms of its dampening abilities. (Maybe its very ordinary stuff sold at a high mark-up because its in kit form). To further improve sound-dampening, what kind of material should I look for? Please dont suggest UK or other brand names or UK or other retail outlets as Im not in the UK but in southern Oman and need to go hunting around looking at this or that kind of sheeting that building material suppliers or car accessory shops etc. might offer me. IS PLAIN THICK RUBBER SHEETING suitable, and if so whats the maximum/minimum thickness to look for, or is foam bounded by rubber better (as per the Noisekiller stuff)?
Third: The Noisekiller kit contains pieces to be glued to or placed over parts of the seat boxes. Fitting the pieces on the front of the drivers seat-box, under the vertical carpet covering appears to be not so easy, though possible (e.g. bolts retaining handbrake need undoing in order to release and lift carpeting). Does it make any difference in terms of effectiveness if the material is glued on the inside metal surface, i.e. inside the battery box, or must it be on the outside?
Fourth: Having heard that a lot of noise comes from/is reflected by a Defenders roof, I was surprised to find that the kit contained nothing for the roof. Perhaps this is to keep down its cost. What would be the best stuff to fit to the roof, and can those plastic retaining studs be got out without making a dogs leg of things?
Fifth: The Noisekiller kit contains a piece about 42 x 33 cm, designed to fit to passenger-side bulkhead. In the case of my vehicle, that will entail removing the air-con unit in order to get to the bulkhead wall behind it. Im thinking that that will be troublesome and not easy, and wonder if I should go to the trouble.
Sixth: The NK kit contains some pads, thin, rubbery and foil-backed, and approx. 25 x 17 cm in size, to be fixed to the inside of each of the five doors. Are these small pads somehow supposed to reduce vibration/noise passing through the door?
Im sorry this post is so long, but having come this far in terms of effort, time and cost, I feel I must do the job properly. Thus would much appreciate your advice regarding each of my points.
My first question: as regards noise-dampening /soundproofing, is it a case of the more the better in terms of the depth of dampening material on any particular area? In other words, if I add more material on top of the Noisekiller sheets Ive fitted, can I expect further improvement?
Second: most of the stuff Noisekiller supplied is 6-mm foam bounded on both sides by rubber app. 1.5 mm thick (total thickness 9mm). I dont know whether this is high-, medium- or low-quality stuff in terms of its dampening abilities. (Maybe its very ordinary stuff sold at a high mark-up because its in kit form). To further improve sound-dampening, what kind of material should I look for? Please dont suggest UK or other brand names or UK or other retail outlets as Im not in the UK but in southern Oman and need to go hunting around looking at this or that kind of sheeting that building material suppliers or car accessory shops etc. might offer me. IS PLAIN THICK RUBBER SHEETING suitable, and if so whats the maximum/minimum thickness to look for, or is foam bounded by rubber better (as per the Noisekiller stuff)?
Third: The Noisekiller kit contains pieces to be glued to or placed over parts of the seat boxes. Fitting the pieces on the front of the drivers seat-box, under the vertical carpet covering appears to be not so easy, though possible (e.g. bolts retaining handbrake need undoing in order to release and lift carpeting). Does it make any difference in terms of effectiveness if the material is glued on the inside metal surface, i.e. inside the battery box, or must it be on the outside?
Fourth: Having heard that a lot of noise comes from/is reflected by a Defenders roof, I was surprised to find that the kit contained nothing for the roof. Perhaps this is to keep down its cost. What would be the best stuff to fit to the roof, and can those plastic retaining studs be got out without making a dogs leg of things?
Fifth: The Noisekiller kit contains a piece about 42 x 33 cm, designed to fit to passenger-side bulkhead. In the case of my vehicle, that will entail removing the air-con unit in order to get to the bulkhead wall behind it. Im thinking that that will be troublesome and not easy, and wonder if I should go to the trouble.
Sixth: The NK kit contains some pads, thin, rubbery and foil-backed, and approx. 25 x 17 cm in size, to be fixed to the inside of each of the five doors. Are these small pads somehow supposed to reduce vibration/noise passing through the door?
Im sorry this post is so long, but having come this far in terms of effort, time and cost, I feel I must do the job properly. Thus would much appreciate your advice regarding each of my points.
