Sound Blocking StP Bromo

⚫ StP Bromo (Multi-Layer Sound Insulation)

Need one material that both blocks and absorbs sound?
StP Bromo combines multiple layers to deliver powerful sound insulation and absorption in a single sheet — making it one of the most efficient materials for car interiors.

Its soft open-cell layer absorbs noise, while the heavy membrane blocks sound waves from entering the cabin. This two-in-one structure makes installation faster and results cleaner — perfect for professional and DIY installs alike.

👉 How much do you need?
One pack (10 sheets, 1.76 m² total coverage) is enough to:

• Insulate the entire cabin floor and boot, or

• Treat the rear wheel arches and under-seat areas for deeper noise reduction.

👉 Where to use it:

• Floor (interior and boot)

• Rear wheel arches (interior side)

• Under seats

• Spare wheel well / boot floor

👉 How to install:

1. Clean the surface — remove dust, oil, and dirt.

2. Apply Bromo on top of a vibration-damping layer (e.g., StP Gold or Aero).

3. Cut to shape, peel off the backing, and press firmly into place.

4. Use a roller for tight areas and ensure full adhesion.

👉 Why it works:

• Multi-layer construction: 1.2 mm heavy butyl membrane + 4 mm perforated polypropylene foam + soft outer cover.

• Absorbs and blocks sound — handles both mid and low frequencies.

• Reduces installation time by combining two functions in one layer.

• High adhesion to vibration dampers and metal surfaces.

• Durable and safe — designed for extreme cabin and boot conditions.

• Improves comfort and clarity inside the car.

📦 Pack Details:

• 10 sheets (each 375 × 470 mm)

• Thickness: 7 mm

• Total coverage: 1.76 m²

• Colour: Black

• Airborne noise insulation index: ≥ 31 dB

• Purpose: Combined sound absorption & insulation

• Installation surface: Clean metal

StP Bromo is the ultimate 2-in-1 soundproofing solution — combining acoustic absorption and insulation in one step for faster, professional results and a truly quiet cabin.