Overview

Noise control can be a complicated business, sometimes it requires a transmission loss barrier and at other times, an absorber to soften the noise and control any reverberant noise build up, and there are times when the problem requires both of these approaches to achieve the best result.

This is where Pyrotek's range of composite barrier/absorber materials come to the fore as they are designed to deal with these situations in the most effective and economical way. Applications such as compressor, generator or plant rooms, mobile machinery cabins and marine craft engine rooms all need this treatment to ensure the well being of those in the enclosed area, as well as those outside of it.

Construction and performance

The decoupled high mass barrier layer ensures maximum reduction in the transmission of the sound wave through the structure to which it is attached, while the hydrolysis-resistant acoustic foam material reduces the noise effect and any reverberant noise build-up within the enclosed space by absorbing the airborne sound waves.

Soundsorber Mat

Soundsorber Mat is designed to achieve maximum attenuation over a broad frequency range. The combination of dense, flexible load vinyl barrier with foam provides a total noise control system. This product range offers a variety of facings that can be applied to the surface of the barrier to increase the durability and weatherability.

When Soundsorber Mat is used in wet areas, as in marine or truck cab application, closed cell foams can be used.

Soundsorber Barrier

Soundsorber Barrier is a composite product comprised of two layers of acoustic foam (Soundsorber^TM) and a single flexible barrier.

This composite is designed to provide maximum noise reduction in the hardest environment. The isolation foam (6mm thick) decouples the flexible barrier from the substrate while the thicker absorbing foam (Soundsorber^TM) reduces the airborne noise.

Soundsorber Barrier is available with various foam thicknesses and surface coverings to accommodate any circumstances while still maintaining its excellent acoustic performance.

Tested at National Acoustics Laboratory

Sound transmission loss (dB) versus frequency (Hz). Source: National Acoustic Laboratories' Report Reference ATF 173, ATF 174

Sound absorption coefficient versus frequency (Hz). Source: National Acoustic Laboratories' Report Reference ATF 509, ATF 512

Benefits

• Hydrolysis resistant foam outlasts conventional acoustic foam threefold.
• Highly flexible barrier layer equals high transmission loss.
• Flame-resistant surface layer, recommended for marine use.
• Unique manufacturing technique ensures total fusion of the foam to the barrier.
• Excellent noise reduction per given thickness of product.

Options

• A variety of surface coverings to suit any application.
• High performance pressure sensitive adhesive backing, exhibits excellent initial tack and adhesion to clean dry surfaces and provides high sheer and heat resistance.
• A polyurethane sealer is available to seal and exposed edges.
• Soundguard offers facilities for die cutting and fabricating to customers requirements.
• Can be supplied in rolls or convenient sheet size.

Installation

These composites can be adhered to the substrate with factory-supplied pressure-sensitive adhesives for temperatures up to 120°C. It is recommended that contact adhesive "Sorberbond" or mechanical fasteners (hanger pins) be used for these heavy loaded composites in overhead applications.

These products can easily be cut with a sharp knife and can be die cut into any complex shape. All products can be supplied in convenient sheet or roll sizes.

Specifications

*Flammability results based on tests carried out on Soundsorber NA25AL

Ask for any of the Soundguard technical data now. 

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