11 Products
DYNAMAT
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Dynamat: understand the range before choosing
Dynamat develops materials for controlling vibration, noise and heat in vehicle interiors. The products on this page include self-adhesive Xtreme and SuperLite damping sheets, two Dynaliner insulation thicknesses, DynaPad, Hoodliner and a rubber installation roller. Each has a different layer, location or installation role; the brand name alone does not make them interchangeable.
AutoMotoPart currently lists 11 Dynamat items. The largest Dynamat groups are 11 audio visual entries. Dynamat totals can change, so a category count is orientation rather than proof that a particular reference suits a vehicle, workplace or job. The exact Dynamat listing, its current technical information and the item in front of you must agree.
What the Dynamat page actually covers
| Product group in this range | Current entries | Selection focus |
|---|---|---|
| Audio Visual | 11 | Separate vibration damping, thermal insulation, barrier and fitting-tool roles; then verify dimensions, thickness, pack coverage and installation zone. |
All 11 entries sit within vehicle audio and acoustic accessories, but their construction and purpose differ substantially. Six titles are damping sheets, three are insulation products, one is a loose floor barrier and one is a roller. Xtreme and SuperLite pack names describe coverage formats; Dynaliner thickness describes installed depth; Hoodliner and DynaPad name location-led products.
Build a reliable shortlist
Diagnose before covering panels. Structure-borne vibration can be felt in the metal, airborne sound travels through gaps and cavities, and radiant heat needs an insulating layer. A material that improves one path may leave another unchanged. Record the baseline noise, source, location and available depth so the finished result can be judged fairly.
| Check | Why it matters | Useful evidence |
|---|---|---|
| Problem | Panel resonance, airborne noise and heat transfer need different treatments | Stationary tap test, controlled road test and heat source |
| Substrate | Adhesive depends on clean, dry and stable metal or supported hard surface | Rust inspection, coating condition and product instructions |
| Area | Doors, floor, boot, roof and bonnet have different hazards and clearances | Measured template and trim-depth check |
| Layer | Damping sheet, closed-cell foam and mass barrier have distinct jobs | Exact Xtreme, SuperLite, Dynaliner, DynaPad or Hoodliner data |
| Vehicle systems | Coverage must not impair safety, drainage or servicing | Airbag, restraint, wiring, latch, window and drain layout |
| Mass and depth | Added weight or thickness can affect trim fit and moving parts | Coverage calculation, sheet mass and compressed clearance |
Do not choose solely by the largest pack or thickest layer. Full-area measurements can reveal that a door kit is unsuitable for a floor, that 1/2-inch foam prevents trim seating, or that a heavy barrier is inappropriate on a vertical moving panel.
Xtreme and SuperLite damping sheets
Dynamat Xtreme is a self-adhesive constrained-layer damping sheet for hard panels where resonance is a problem. The speaker, wedge, door and bulk packs in this range use different sheet dimensions and quantities, so calculate actual square coverage and cutting waste. Damping depends on intimate contact with a prepared panel, not on loosely placing the sheet behind trim.
SuperLite is thinner and lighter than Xtreme according to Dynamat's official comparison. That can matter on weight-sensitive builds, large roofs and moving panels, but it does not remove the need for a sound substrate and careful rolling. Neither family should bridge drains, cover door mechanisms or foul glass as it travels through its full range.
Dynaliner thickness and layered installation
Dynaliner is a self-adhesive closed-cell synthetic rubber insulation layer that addresses heat and remaining airborne noise. The current selection includes 1/8-inch and 1/2-inch sheets. Official guidance favours the thickest supported material that the available space permits, which makes a physical clearance check more useful than assuming maximum thickness is always better.
The thinner sheet is easier to accommodate behind door trim and in tight cavities; the thicker sheet needs substantially more room and suits higher-priority thermal zones only where carpet, consoles, seats and fixings can return without compression or distortion. When layering over Xtreme, finish and roll the damping sheet first, keep both surfaces clean and preserve apertures for clips and bolts.
DynaPad, Hoodliner and the installation roller
DynaPad is a dense four-layer floor barrier intended beneath carpet. It is not the same peel-and-stick construction as Xtreme or Dynaliner, and its mass must be allowed for when measuring and handling. Keep it clear of pedal travel, seat runners, belt anchors, wiring connectors and any low point where trapped moisture needs investigation.
Hoodliner combines acoustic foam with a reflective facing for an engine-compartment-facing panel and official guidance pairs it with Xtreme for maximum noise control. Fit only to a compatible, stable bonnet surface with adequate clearance from hot, moving and service components. Use the rubber roller for even pressure on supported adhesive sheets, not as a substitute for cleaning or to force material over sharp objects.
Preparation, templates and clean adhesion
Photograph trim, clips and cable routes before dismantling. Vacuum loose material, inspect seams for water entry and repair corrosion or failed coatings. Dynamat recommends a smooth, clean surface; any chosen cleaner must be compatible with the substrate and leave it fully dry. Underseal, textured liner, loose paint and greasy residue are poor foundations for adhesive sheet.
Create templates around recesses and leave intentional access to drains, mounting threads and inspection points. Cut on a protected bench with suitable gloves because foil and freshly cut edges can be sharp. Peel only enough release liner to control placement, press progressively, and roll the whole supported area while watching for voids, wrinkles and trapped harnesses.
Reassembly and realistic result checks
Before trim returns, operate windows, locks, latches and cables and confirm drainage with a controlled check. Restore vapour barriers and acoustic seals by the vehicle procedure. Torque seats, belt anchors and structural fasteners to the applicable repair information; added material must never sit inside a critical joint or beneath an earth connection.
Compare the same road, speed, tyre pressure and cabin configuration used for the baseline. A remaining drone may be tyre, bearing, exhaust or powertrain related and needs diagnosis rather than more material. Inspect after an initial heat cycle for lifting edges, odour, trim pressure or contact with moving parts, and correct the cause before extending coverage.
From identification to a checked result
| Stage | Good practice for this range | Mistake to avoid |
|---|---|---|
| Diagnose | Separate resonance, airborne sound and heat; record a repeatable baseline | Treating a mechanical fault as an insulation problem |
| Measure | Template the area, calculate coverage and check compressed clearance | Buying by pack name without dimensions |
| Prepare | Remove trim safely, repair corrosion, clean and dry the substrate | Adhering over grease, water or loose coating |
| Install | Match each layer to its zone and roll supported adhesive sheets evenly | Blocking drains or covering safety hardware |
| Verify | Reassemble correctly and repeat the baseline checks after heat cycling | Claiming success from a different road or speed |
Keep a simple installation record with product family, thickness, sheet count, treated zones and photographs of concealed wiring and fasteners. It helps later diagnosis, water-leak work and safe removal during body or electrical repair.
Reading real Dynamat references
The Dynamat names below are examples from the current range and show why the complete description matters. They are not universal Dynamat recommendations and should not be treated as a fitment list. Within Dynamat, a shared family word can conceal a different dimension, connector, material, pack format, operating condition or installation side.
| Example listing | What to verify beyond the name |
|---|---|
| Xtreme Noise Reduction Sheet - Speaker - 254mm x 254mm - Pack Of 2 | Sheet dimensions, quantity, total coverage and whether it is Xtreme |
| Xtreme Noise Reduction Sheet - Wedge - 457mm x 812mm | Exact shaped-pack area, panel access and cutting plan |
| Xtreme Noise Reduction Sheet - Door - 305mm x 914mm - Pack Of 4 | Door count, glass and mechanism clearance, drainage and vapour barrier |
| Xtreme Noise Reduction Sheet - Bulk - 457mm x 812mm - Pack Of 9 | Nine-sheet bulk coverage, project area and added mass |
| SuperLite Noise Reduction Sheet - 457mm x 812mm - single pack | SuperLite single-sheet dimensions, surface and installation role |
| SuperLite Noise Reduction Sheet - 457mm x 812mm - Pack of 12 | SuperLite twelve-sheet coverage, weight plan and trim access |
| Insulator - Dynamat Dynaliner 1/8in. | Dynaliner 1/8-inch depth, area and layer beneath it |
| Insulator - Dynamat Dynaliner 1/2in. | Dynaliner 1/2-inch depth, compressed clearance and high-heat zone |
The repeated 457mm by 812mm dimension does not make Xtreme and SuperLite identical, and an insulation roll with the same footprint as DynaPad still performs a different function. Keep family, thickness, sheet count and intended layer attached to every measurement.
Common errors around Dynamat products
- Using one material for every vibration, noise and heat path.
- Applying adhesive sheet over rust, moisture, grease or textured undercoating.
- Covering drains, wiring connectors, earth points or service fasteners.
- Fouling door glass, latches, seat runners, pedals or restraint hardware.
- Assuming the thickest Dynaliner will fit beneath existing trim.
- Treating DynaPad as a self-adhesive damping sheet.
- Installing Hoodliner without bonnet and heat-source clearance checks.
- Judging noise reduction without a repeatable before-and-after test.
Dynamat questions and answers
Q: What Dynamat products are represented here?
A: Xtreme and SuperLite sheets, two Dynaliner thicknesses, Hoodliner, DynaPad and a 50mm rubber roller.
Q: Are Xtreme and SuperLite the same?
A: No. Both damp panel vibration, but SuperLite is the thinner, lighter option and pack coverage also differs.
Q: What does Dynaliner do?
A: It is closed-cell insulation for heat and airborne noise, commonly used as a separate layer over damping material.
Q: Which Dynaliner thickness should I choose?
A: Use the exact zone guidance and the thickest supported sheet that leaves safe clearance for trim and moving parts.
Q: Is DynaPad self-adhesive?
A: No. Official Dynamat information describes it as a heavy composite barrier without adhesive, normally placed beneath carpet.
Q: Where does Hoodliner belong?
A: On a supported bonnet or engine-cover application with suitable surface condition and safe clearance from heat and moving parts.
Q: Must the panel be cleaned first?
A: Yes. Adhesive products need a smooth, clean, dry and stable surface; corrosion and leaks need correction first.
Q: Can I cover a whole door cavity?
A: Only while preserving glass travel, latches, side-impact and restraint systems, wiring, drains and required service access.
Q: What is the roller for?
A: It applies controlled pressure so a supported adhesive sheet contacts the prepared panel without trapped air.
Q: Can insulation fix a wheel-bearing hum?
A: No. Mechanical, tyre, exhaust and aerodynamic noises require diagnosis before any acoustic treatment is planned.
Q: How should coverage be calculated?
A: Measure the real panel area, subtract exclusions and allow for the specific sheet dimensions and sensible cutting waste.
Q: What should be checked after installation?
A: All trim and safety systems, drainage, moving parts, edge adhesion and a repeatable road-test baseline.
