Close-up of a 2 layer black soundproofing material with 7 mm thickness and weight of 5 kg/m², designed for ultimate floor and wheel arch insulation, StP Bromo Sound Insulation 1.76m²/7mm. Interior of a car stripped down with StP Bromo Sound Insulation 1.76m²/7mm applied to the floor and walls for enhanced automotive soundproofing and vibration damping. Black packaging box of StP Bromo Sound Insulation 1.76m²/7mm containing 10 sheets and weighing 9 kg, designed for automotive soundproofing and vibration damping. StP Bromo Sound Insulation 1.76m²/7mm black soundproofing sheet measuring 470 by 375 mm designed for automotive sound deadening and vibration damping applications. Interior view of a vehicle installation featuring StP Bromo Sound Insulation 1.76m²/7mm applied to the floor for enhanced car soundproofing and vibration damping.
Close-up of a 2 layer black soundproofing material with 7 mm thickness and weight of 5 kg/m², designed for ultimate floor and wheel arch insulation, StP Bromo Sound Insulation 1.76m²/7mm.
Interior of a car stripped down with StP Bromo Sound Insulation 1.76m²/7mm applied to the floor and walls for enhanced automotive soundproofing and vibration damping.
Black packaging box of StP Bromo Sound Insulation 1.76m²/7mm containing 10 sheets and weighing 9 kg, designed for automotive soundproofing and vibration damping.
StP Bromo Sound Insulation 1.76m²/7mm black soundproofing sheet measuring 470 by 375 mm designed for automotive sound deadening and vibration damping applications.
Interior view of a vehicle installation featuring StP Bromo Sound Insulation 1.76m²/7mm applied to the floor for enhanced car soundproofing and vibration damping.

StP Bromo Sound Insulation 1.76m²/7mm

2Low stock

$270.00 -10% $299.99
$270.00
Tax included.

StP Bromo Sound Insulation 7mm – 2-in-1 Sound Blocking & Absorption Material Australia

Looking for a single material that both blocks and absorbs sound inside your car?

StP Bromo is a high-performance car sound insulation material that combines a dense sound barrier and an acoustic absorption layer in one sheet — delivering powerful noise reduction with faster installation.

This makes it one of the most efficient sound deadening solutions in Australia.

What Is StP Bromo?

StP Bromo is a multi-layer sound insulation material designed to reduce both airborne noise and low-frequency vibrations. It combines two essential functions:

  • Sound blocking (mass layer)
  • Sound absorption (foam layer)

This eliminates the need for multiple materials and simplifies installation.

Why 2-in-1 Soundproofing Matters

In a traditional setup, you would need:

  • One layer to block sound
  • Another layer to absorb sound

StP Bromo combines both in one sheet, which means:

  • Faster installation
  • Cleaner results
  • Less weight compared to multiple layers

How Much Coverage Do You Get?

One pack (10 sheets, 1.76 m² total coverage) is enough to:

  • Insulate the entire cabin floor and boot, or
  • Treat rear wheel arches and under-seat areas for deeper noise reduction

Ideal for floor sound deadening and cabin insulation.

Where to Use StP Bromo

  • Floor (main road noise source)
  • Boot / trunk area
  • Rear wheel arches (interior side)
  • Under seats
  • Spare wheel well

Best applied on top of a vibration damping layer (StP Gold or Aero).

Why StP Bromo Works

  • Multi-layer construction: heavy butyl membrane + perforated foam + protective cover
  • Blocks and absorbs sound (mid + low frequencies)
  • Reduces installation time vs multi-layer systems
  • Strong adhesion to damping layers and metal
  • Designed for harsh cabin and boot conditions

This makes it one of the most effective floor sound insulation materials.

Performance Benefits

  • Reduces road and tyre noise
  • Improves cabin quietness on highways
  • Enhances overall driving comfort
  • Improves audio system clarity

Installation Guide

  • Clean and degrease the surface
  • Install vibration damping layer first
  • Cut Bromo sheets to size
  • Peel backing and press firmly
  • Use roller for tight areas

Simple and efficient installation for both DIY and professional use.

Technical Specifications

  • Sheets: 10
  • Sheet size: 375 × 470 mm
  • Thickness: 7 mm
  • Total coverage: 1.76 m²
  • Colour: Black
  • Airborne noise insulation: ≥ 31 dB

How to Use in a Sound Deadening System

  • Step 1: Vibration damping (StP Gold / Aero)
  • Step 2: StP Bromo (block + absorb layer)

This creates a high-performance 2-layer system with maximum efficiency.

FAQ

Is StP Bromo better than separate layers?

Yes — it combines sound blocking and absorption, saving time and weight.

Where does Bromo work best?

Floor, boot, and wheel arches — areas with strong road noise.

Do I still need damping material?

Yes — Bromo should be installed on top of a vibration damping layer.

Buy StP Bromo in Australia

Upgrade your car with a 2-in-1 sound insulation solution trusted by installers across Sydney.

👉 Order now or explore full sound deadening kits for best results