Close-up of a product with 'Ultra Light' label on a textured surface
StP Aero Sound Deadening 4.5m²/2.3mm applied to the interior roof of a vehicle, providing effective car soundproofing and vibration damping for noise and heat reduction. StP Aero Sound Deadening 4.5m²/2.3mm black vibration damping sheet with gold logos, sized 750 by 500 millimeters, designed for automotive sound deadening and noise reduction. StP Aero Sound Deadening 4.5m²/2.3mm box showing 12 sheets and total weight of 14.5 kg designed for effective car noise reduction and vibration damping. Interior of a vehicle stripped down showing the installation of StP Aero Sound Deadening 4.5m²/2.3mm applied to the floor and inner panels for car soundproofing and vibration damping.
Close-up of a product with 'Ultra Light' label on a textured surface
StP Aero Sound Deadening 4.5m²/2.3mm applied to the interior roof of a vehicle, providing effective car soundproofing and vibration damping for noise and heat reduction.
StP Aero Sound Deadening 4.5m²/2.3mm black vibration damping sheet with gold logos, sized 750 by 500 millimeters, designed for automotive sound deadening and noise reduction.
StP Aero Sound Deadening 4.5m²/2.3mm box showing 12 sheets and total weight of 14.5 kg designed for effective car noise reduction and vibration damping.
Interior of a vehicle stripped down showing the installation of StP Aero Sound Deadening 4.5m²/2.3mm applied to the floor and inner panels for car soundproofing and vibration damping.

StP Aero Sound Deadening 4.5m²/2.3mm

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$439.99 -100%
$439.99
Tax included.

StP Aero Sound Deadening Sheets 4.5m² – Lightweight Vibration Damping Material Australia

Looking for the best balance between light weight and high-performance sound deadening?

StP Aero (Diamond Line) is a premium car sound deadening material in Australia designed for drivers who want strong noise reduction without adding unnecessary weight — perfect for performance cars, daily drivers, and 4WD builds.

What Makes StP Aero Different?

StP Aero is a lightweight vibration damping sheet engineered to reduce panel resonance — the main cause of road noise — while keeping overall vehicle weight low.

This makes it ideal for: - Performance builds - Track cars - Vehicles where weight matters

How Much Coverage Do You Get?

One bulk pack (12 sheets, 4.5 m² total coverage) is enough to:

  • Fully sound deaden all 4 car doors, or
  • Cover the entire floor or firewall of a sedan or SUV

It’s one of the most efficient lightweight sound deadening sheet packs in Australia.

Best Areas to Apply Sound Deadening

  • Doors (best first upgrade)
  • Floor (road noise reduction)
  • Roof (rain and wind noise)
  • Wheel arches (tyre noise)
  • Firewall
  • Boot / trunk
  • Bonnet / hood
  • Interior trims

Why StP Aero Works

  • Multi-layer construction: aluminium foil + high-performance damping base
  • Lightweight design: up to 3.5 kg/m²
  • Strong adhesion for long-term durability
  • Temperature resistance: –45°C to +100°C (up to +190°C short bursts)
  • Non-flammable and safe for all vehicle types

It delivers excellent road noise reduction without compromising vehicle performance.

Audio & Driving Benefits

  • Eliminates panel vibration
  • Improves bass response and clarity
  • Reduces rattles and unwanted resonance
  • Creates a quieter, more refined cabin

Installation Guide

  • Clean and degrease surface thoroughly
  • Cut sheets to size and apply firmly
  • Use a roller for proper adhesion
  • Above +15°C: install directly
  • Below +15°C: warm slightly with a heat gun

For best results, combine with a sound barrier layer and foam absorber to achieve full car soundproofing.

Technical Specifications

  • Sheets: 12
  • Sheet Size: 750 × 500 mm
  • Thickness: 2.3 mm
  • Total Coverage: 4.5 m²
  • Weight: up to 3.5 kg/m²
  • Bond Strength: 4 N/cm
  • Fire Safety: Non-flammable

StP Aero vs Other Materials

  • Aero: best balance (lightweight + performance)
  • Black Silver: budget-friendly option
  • Black Gold: maximum damping performance

This makes StP Aero the ideal mid-tier solution for most builds.

FAQ

Is StP Aero good for performance cars?

Yes, it is specifically designed for builds where weight matters.

How many packs do I need?

- Doors only: 1 pack - Full car: 2–3 packs depending on size

Is it better than heavier materials?

It offers a better balance — slightly less damping than premium options, but significantly lighter.

Buy StP Aero in Australia

Upgrade your vehicle with lightweight sound deadening sheets trusted by installers across Sydney.

👉 Order now or explore door and floor kits for complete soundproofing