Car Builders, HPP and Dunlop
Underlay, sound deadening & insulation
What goes under the floor matters as much as the floor. Butyl sound deadener stops panels drumming, insulation keeps engine and exhaust heat out of the cabin, and underlay makes new moulded carpet or vinyl sit flat and feel right. It's all cut to suit, so it fits any vehicle.
- Car Builders and HPP butyl sound deadener
- Dunlop Fibrefelt underlay for QMCC flooring
- Under-bonnet and heat insulation
- Install kits and trim shears
What each layer does
Quieter, cooler, better fitted
Sound deadener
Self-adhesive butyl sheets stick to the floor pan, doors and roof and stop the metal drumming. Start here for a quieter cabin.
Heat insulation
HPP Stealth Mat and Car Builders under-bonnet insulation help keep engine and exhaust heat out of the cabin.
Underlay
Fibrefelt or waterproof underlay goes down before moulded carpet or vinyl so the new floor sits flat and feels right.
Tools for the job
A roller, a sharp knife, foil tape and proper trim shears make the install quicker and the finish neater.
Sound deadening and underlay questions
Still not sure? Call 07 3340 4392
What order does it all go in?
Sound deadener goes straight onto clean, bare metal. Insulation or underlay goes over it, and the moulded carpet or vinyl goes on top. Under-bonnet insulation goes on the underside of the bonnet.
How much sound deadener do I need?
Measure the area you want to cover. The Car Builders Stage 1 box covers 1.8 m² and the HPP Stealth 10-sheet pack covers 1.5 m². On doors and roofs, the large flat sections are where panels drum the most, so cover those first. Our sound deadening guide has a box-by-box breakdown.
Which underlay goes under QMCC flooring?
Dunlop Fibrefelt refibre under felt comes as a half sheet for a front-only install or a full sheet for front and rear. Car Builders Stage 2 is a 10 mm peel-and-stick waterproof underlay, 1.71 m² per pack.
Do I need the install kit?
Sound deadener needs to be rolled down firmly to bond properly, and a roller does that far better than your hand. The Car Builders kit has a roller, knife and foil tape for sealing joins.
Will it fit my vehicle?
Yes. Everything here comes in sheets or rolls that you cut to shape, so it suits any car, ute or 4WD. Questions? Call 07 3340 4392.
Guides
Know before you buy
Isuzu D-Max, MU-X and Holden Colorado: which dash mats and floor mats fitThe D-Max, Colorado and MU-X share a lot, but not their dash mats and floor mats. How to tell which one you've got an...
Mitsubishi Triton dash mats, floor mats and flooring: MJ to MVWhich dash mat, Sandgrabba floor mats, moulded flooring and Snap Shades fit your Mitsubishi Triton, from the MJ/MG/MH...
Ford Ranger dash mats, floor mats and flooring: PJ, PK, PX and PYWhich dash mat, Sandgrabba floor mats, moulded flooring and Snap Shades fit your Ford Ranger, from the PJ and PK to t...
Sound deadening a ute or 4WD: what to use and where it goesButyl deadener, heat insulation and underlay: what each layer does, where it goes in a ute or 4WD, how much to buy an...
Shop QMCC moulded flooring
Moulded carpet or vinyl, made to order for your vehicle.