Soundproof Backing Board

Thin, standard wall substrates fail to block airborne noise, leaving occupants frustrated by conversation bleed, TV audio, and outside noise intrusion in homes, hotels, and office spaces. Our Soundproof backing board is a high-density acoustic substrate engineered to reduce noise transmission, delivering built-in sound dampening performance that standard panels cannot match.

This Soundproof backing board uses a multi-layer damping composite structure, with a high-density mineral core reinforced with viscoelastic damping layers that absorb and block airborne sound. On its own, it delivers a 23dB noise reduction rating, and when paired with standard light steel framing and sound insulation batts, it can achieve an STC (Sound Transmission Class) rating of 55 or higher - enough to block most normal conversation, TV audio, and office equipment noise. It also meets ASTM E413 acoustic performance standards and ASTM E84 Class A fire resistance requirements, combining soundproofing and fire safety in a single panel, eliminating the need for separate fire-rated and acoustic substrates.

Its smooth, flat surface is fully compatible with all common decorative finishes, from paint and wallpaper to tile, wood veneer, and acoustic paneling, with no additional surface preparation required. Installation follows standard industry workflows, with easy on-site cutting and fastening to steel or wood framing, requiring no specialized tools or training for installation crews. It is the ideal choice for hotel guest rooms, apartment Separate households walls, office meeting rooms, home theaters, and any space where noise control is a priority.

Yiheng Holdings Co., Ltd. manufactures our Soundproof backing board with advanced acoustic composite technology, testing every batch for sound transmission performance to ensure consistent, code-compliant results. We offer a full range of thicknesses and custom sizes to fit the acoustic requirements of any project.