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General Description
Soundown Corporation has been in the business of manufacturing noise control materials for over 25 years. In this time we have developed a portfolio of products for the effective treatment of packaged power units and sound attenuated enclosures. Our products include acoustic insulation and vibration damping materials as well as a range of machinery isolation solutions.
We understand that effective solutions for reducing machinery noise require a sound attenuated enclosure that meets the customer's specification and/or regulatory compliance levels without making the product unaffordable or ungainly. Our staff has the experience to recommend materials that will be effective and practical in achieving our noise control goals.
For situations where a higher degree of review and modeling or prediction of noise levels is required Soundown's sister company, J&A Enterprises, can provide noise and vibration engineering support for new projects or existing platforms.
Every project is different and Soundown's expertise and range of products allow us to be a valuable partner and single source supplier for your unique project.
Click here for the Technical Data Sheet |
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Acoustic Absorption Materials
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 Absorption materials are effective at reducing the amount of reverberant noise in a sound shield, which translates into lower overall sound pressure levels. Absorption treatments are particularly effective when installed in conjunction with baffles to stop noise exiting the sound shield via openings for ventilation.
Soundown offers a variety of acoustical foam products to meet your absorption needs. From the standard polyether to high temperature polyimide foams, Soundown has the right acoustical foam for your application. All foams are available with various facings for added durability and ease of cleaning.
Advantages
- Our polyether foams are superior to the common polyesters and more hydrolytically stable.
- Available with various facings such as Mylar, urethane, and vinyl
- Available in stock thicknesses 1/4" to 2", custom thicknesses are available upon request
- Excellent for high frequency noise reduction
- Fiberglass, mineral wool and ceramic materials available for applications requiring highly fire resistant materials
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Barrier Composite Insulation
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 Barrier composite insulation increases the transmission loss of the sound shield by creating a floating acoustic membrane inside the sound shield. Soundown can vary the thickness of the composite and weight of the barrier in response to your need for noise control, space, weight and cost to effectively treat airborne noise radiating from machinery such as engines, generators, pumps, etc. The composite construction most commonly consists of a layer of Tuff-Mass acoustic barrier sandwiched between two layers of our polyether foam and a vapor barrier on one side.
Advantages
- Weight and thickness customizable for optimal performance
- Absorption layer reduces reverberant noise in the enclosure
- The barrier/decoupling layer creates a wall within the enclosure to help contain noise and reflect it back through the absorption layer for additional noise reduction
- Effective reduction of the mid and low frequency noise associated with engines, generators, etc.
- Fiberglass, mineral wool and ceramic materials available for applications requiring highly fire resistant materials
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 Isolation mounts are the first step in reducing mechanical noise from most pieces of equipment. Vibration from the unit engine will transmit to the sound shield as well as the foundation in the case of fixed equipment creating structureborne noise. Proper isolation will take into account the type of machinery and its inherent vibration characteristics and, when possible, the surface to which it is mounted and match the deflection of the isolation to those parameters in a fashion that is safe and appropriate.
Advantages
- 6 Degrees of Freedom Analysis capabilities to ensure resonances do not occur at critical frequencies
- Double mount systems available for critical applications
- Protect mobile equipment from shock during transit
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Damping & Mass Layers
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 Soundown offers a range of mass loaded vinyl (Tuff-Mass) and engineered damping materials (Eco damp, DT series damping) for use in sound attenuated enclosures. The damping characteristics of the materials will reduce the ringing and rattling noises associated with steel or aluminum enclosures while the addition of mass will increase the transmission loss of the panels.
Soundown Tuff-Mass and damping materials have very low gauge thickness (0.062" to 0.25") which makes them ideal for enclosures with low clearances between machinery and shell. These materials are also easy to manage in production as they are razor blade or scissor cuttable and available with peel and stick adhesive for easy installation.
Advantages
- Allow use to lighter gauge metal or composite panels to improve ease of handling and fabrication and easily add mass to finished part
- Stop ringing of "tinny" sounding panels
- Low gauge thickness to fit in tight spaces
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 Gasketing material can be used in a number of places in a sound attenuated enclosure to reduce the noise. The installation of gasketing material to seal where enclosure panels or doors meet the frame of the enclosure will stop noise from leaking out at the seam. Stopping leaks is important in attenuated enclosures as leaks adding up to even 1% can significantly reduce the effectiveness of otherwise well built and insulated enclosures.
Panels that are well seated on their gasket will provide improved weatherization, have sufficient tension to keep latches and reduce squeaks, rattles and other annoying noise.
Gasket materials are available in a range of solid and sponge elastomeric materials such as low compression set, high temperature, and fuel and ozone resistant.
Advantages
- Gaskets can be supplied in roll or sheet form as well as die cut to match your application
- Available with or without pressure sensitive adhesive
- The broad range or solid and sponge materials and their properties allow us to conform our gasketing to your unique application
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Sylomer
For an overview click here
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Machines
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Industrial
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Noise & Vibration Control
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Soundown provides a range of noise and vibration control technical design services for its customers. For normal projects, our technical sales representatives work with customers to evaluate their noise control goals and problems, and come up with appropriate applications of materials suited to these.
In case a higher level of technical involvement is required, one of the Soundown engineers can be contracted for design and layout of materials, as well as field test and evaluation work.
In demanding situations, engineers from our affiliated (by common ownership) sound and vibration engineering company, J&A Enterprises, can be hired for:
- Field diagnostic and compliance testing
- Design of treatments to meet noise and vibration specifications
- Construction inspection and testing
J&A engineers have advanced engineering degrees, and half of their engineers are Board Certified Members of the Institute of Noise Control Engineering (INCE). J&A's advanced measurement instrumentation is kept within calibration standards of ISO for precision instrumentation. J&A engineers are capable of designing noise and vibration control solutions for a very wide variety of machines and problems.
To reach J&A's web site, click www.jandaenterprises.com |
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