4 x 4 Australia - - Gear -

TROOP CAR­RI­ERS are com­mer­cial 4x4s, not luxo-barges, so it’s to be ex­pected that they will lack some mod-cons, one of which is in­te­rior sound dead­en­ing.

Un­for­tu­nately, my Troopy suf­fered more than most. Hav­ing been an am­bu­lance in a pre­vi­ous life, they seem­ingly drilled, cut and hacked more holes in it than you could poke a stick at. These floor­pan holes al­lowed tyre, driv­e­line and road noise into the cabin and elim­i­nated the abil­ity to talk to pas­sen­gers or lis­ten to the ra­dio, no mat­ter how high it was turned up. It was down­right an­noy­ing.

My first step was to spend up on rub­ber grom­mets to fill as many reg­u­lar round holes as pos­si­ble, while a few con­vey­or­belt-type rub­ber patches with liq­uid nails were used to patch the larger mis­shapen hack-jobs. While that ap­proach may seem a lit­tle an­ti­quated, it was the most straight­for­ward and ef­fec­tive first line of de­fence to pre­vent the ingress of noise.

Next up, I called Tru-fit Car­pets in Mel­bourne to dis­cuss my op­tions. On their ad­vice, I went more high-tech, with the pur­chase of a cou­ple of boxes of Resomat. Resomat is a pre­mium heat re­flec­tor and sound dead­ener that in­cor­po­rates a sticky back, a thin rub­ber layer, and a top sil­ver heat-re­flec­tive sur­face layer, which should rid the heat sink prob­lems from the ex­haust sys­tem that is po­si­tioned close to the floor on the pas­sen­ger side.

The Resomat helps to deaden noise, stop vi­bra­tion and, as noted, re­flect heat. This prod­uct is also used in door skins to help con­trol panel vi­bra­tion from stereo speak­ers, but I have no need for that.

Once po­si­tioned, the Resomat back­ing is peeled off to al­low mould­ing to the floor pan­els – and while a small roller is ad­ver­tised as be­ing the best way to ap­ply it, I sim­ply pushed my thumbs and a rag over it to en­sure good fit and ad­he­sion (no heat­ing is re­quired).

Thank­fully, the prod­uct is odour­less

The Resomat comes in 3.5m² boxed pack­ages. Plenty of holes were ex­posed once the am­bu­lance floor­ing was re­moved.

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