The Type C High Sound Reduction Wall Board (Model B50CGd) is a specialized composite panel designed to resolve the critical challenge in modern shipbuilding: achieving superior sound insulation to meet stricter comfort standards (5-10dB higher than before) while meticulously controlling weight to optimize vessel performance and payload capacity.

‌Engineered Solution for Superior Sound Insulation‌
Modern ship comfort standards demand higher acoustic performance from interior panels, often requiring increased mass which conflicts with weight-saving goals. Our Type C panel is engineered to break this compromise. Through its optimized three-layer construction—steel sheet, high-density (120kg/m³) rock wool core, and steel sheet—it achieves an impressive ‌45dB sound reduction‌ and a ‌B-15 fire rating‌, while maintaining a relatively low area weight of ‌16.6 kg/m³‌. This balance makes it the ideal choice for cabin bulkheads and partitions where noise control and fire safety are paramount, without imposing a significant weight penalty.

Purpose

Ship sound insulation panels are mainly multi-layer composite rock wool panels. These panels are mainly of three-layer construction, with rock wool in the middle layer and steel plates on both sides of the panel layer.

The acceptable high sound pressure level in living rooms has been increased by 5-10db compared to the old standard. This requires higher sound insulation properties for marine interior panels.

The way to improve the sound insulation of composite rock wool panels is to increase the thickness of the panels or inter layer steel, but increasing the thickness of the panels or interlayer steel inevitably increases the weight of the panels, thus increasing the energy consumption and reducing the ship's transportation capacity.

Key Features & Benefits

‌High Sound Reduction (45dB)‌: Effectively dampens noise transmission between cabins and from machinery spaces, ensuring a comfortable living and working environment compliant with modern standards.

‌Certified Fire Safety (B-15 Rating)‌: Provides reliable fire protection, contributing to the overall safety integrity of the vessel's compartments.

‌Optimized Weight Efficiency‌: At only 16.6 kg/m³, it delivers high performance without the excessive weight of traditional solutions, supporting better fuel efficiency and stability.

‌Robust Composite Construction‌: The steel-rock wool-steel sandwich structure ensures durability, flatness, and ease of installation.

‌Versatile Surface Options‌: Available with a PVC film for a decorative finish or galvanized steel for enhanced durability in demanding areas.

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