StP Biplast Acoustic Foam 5mm / 10mm / 15mm – Car Sound Absorption & Anti-Squeak Material Australia Looking for a reliable acoustic foam for car soundproofing that reduces noise, eliminates squeaks, and improves comfort? StP Biplast (Gold Line) is a multi-purpose automotive sound absorption material designed to improve cabin acoustics, reduce vibrations, and provide thermal insulation — all in one easy-to-install solution. Perfect for both DIY projects and professional installations. What Is StP Biplast? StP Biplast is a self-adhesive acoustic foam made from open-cell polyurethane. It is used as a finishing layer in sound deadening systems to absorb airborne noise and eliminate interior squeaks. This makes it an essential component for achieving a quiet and refined cabin. What Does StP Biplast Do? Absorbs airborne noise inside the cabin Reduces echo and hollow sound Eliminates squeaks between panels Improves thermal insulation It is one of the most versatile car sound absorption materials in Australia. Key Benefits Reduces noise and vibration Provides thermal insulation Prevents panel squeaks and rattles Easy self-adhesive installation Flexible for complex surfaces Where to Use StP Biplast Doors (inner trims and panels) Roof / headliner Plastic interior panels Dashboard and console areas Important: Apply on clean surfaces or on top of a vibration damping layer (StP Gold, Aero, etc.). Choosing the Right Thickness 5 mm: best for tight spaces and small gaps 10 mm: универсальный вариант для дверей и панелей 15 mm: maximum sound absorption (ideal for roof and large cavities) Choose based on available space and required performance. Why StP Biplast Works Open-cell foam structure absorbs sound waves Reduces friction between surfaces (anti-squeak) Self-adhesive backing for quick installation Resistant to extreme temperatures (–40°C to +100°C) Lightweight and flexible This makes it a reliable acoustic foam solution for car interiors. Installation Guide Clean and degrease surface thoroughly Cut foam to required size Peel backing and apply evenly Press firmly for full contact Simple installation suitable for DIY and professional use. Pack Details 5 mm Sheets: 20 Sheet size: 375 × 500 mm Total coverage: 3.75 m² Weight: 1.5 kg 10 mm Sheets: 10 Sheet size: 375 × 500 mm Total coverage: 1.87 m² Weight: 1.5 kg 15 mm Sheets: 7 Sheet size: 375 × 500 mm Total coverage: 1.3 m² Weight: 1.5 kg Technical Specifications Purpose: Sound absorption, heat insulation, anti-squeak Installation surface: Clean plastic or over damping layer Bond strength: ≥ 2 N/cm Fire safety: Non-flammable Sound absorption factor: ≥ 0.1 Biplast vs Other Materials Accent: adds heat insulation + absorption Intrigo: structural absorption layer Biplast: best for soft contact areas and anti-squeak Use Biplast when you need quiet, soft, and rattle-free interior panels. How to Use in a Sound Deadening System Step 1: Vibration damping (StP Gold / Aero) Step 2: Insulation layer (optional) Step 3: Biplast (final acoustic foam layer) This creates a comfortable and refined interior. FAQ Is Biplast good for fixing interior squeaks? Yes — it is one of the best materials for eliminating panel noise and friction. Which thickness should I choose? - 5 mm: tight areas - 10 mm: general use - 15 mm: maximum absorption Do I need vibration damping underneath? For best results — yes, it improves overall performance significantly. Buy StP Biplast in Australia Upgrade your interior with a professional acoustic foam solution used by installers across Sydney. 👉 Order now or explore full sound deadening kits
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