The Box Seal is a wall plate gasket that serves as an acoustic wall plate seal and fire prevention measure, effectively plugging spaces around wall outlets.
The STC Hi-Sabin Panel controls reverberant noise due to exposed ceilings, and offers more savings than other types of sound absorption panels.
The STC Acoustic Sleeper helps to prevent impact noise from reaching floors below.
The STC Mullion Seal closes the gap between a window and wall partition to stop sound from traveling trough these spaces.
Please explore our frequently asked questions about our products, solutions and experience below.
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Yes, for fire-rated partitions up to 1-hour for the most common 1-gang duplex configuration. The Box Seal has been tested per UL 1479 and is listed in the Underwriters Laboratories Fire Resistance Directory as a wall opening protective device. Use with a metal wall plate when outlets on opposite sides of a fire-rated partition are less than 24-inches apart.
Yes, the Box Seal can be used for existing outlets in fire-rated partitions under any conditions. For new outlets, compliance with the “24-inch Rule” of the International Building Code (714.3.2) for protecting recessed outlets on opposite sides of a fire-rated partition is commonly required.
Box Seals are made to fit flush to the edge of standard-size wall plates and are recommended. Midsize and oversize plates also fit over the Box Seal. Annular space should not exceed 1/8-inch.
The standard color is light almond. The edge of the seal is an inconspicuous 1/16-inch thick, and the color blends well with light-colored wall plates. The edge can also be painted once installed.Custom colors are available by special order and pricing. Minimum order quantities will apply.
NEMA configurations used in the United States, Canada, Mexico, Central America, Colombia, Ecuador, Venezuela and most Caribbean and Pacific Islands. Single-gang and 2-gang arrangements are standard for duplex receptacles, toggle switches, Decora-size openings, and data/TV/phone outlets. Custom configurations are available by special order and pricing. Minimum order quantities (MOQ) will apply.
Yes. The Box Seal spans the wall opening just like the wall plate so that it occupies no space inside the electrical box. Specifically, the requirements of Section 314.16 are unaffected by use of the Box Seal.
Performance will always improve by at least 2-3 dB with the Box Seal and as much as 7 dB. The amount is affected by the STC rating of the partition, number of outlets, and the presence of sound attenuation blankets or putty pads.
Neoprene, a dense and resilient rubber selected for its ability to isolate vibrations through viscous damping. It is also specially compounded to be Class A fire-rated per ASTM E119.
Panels are very soft and subject to abuse. They should be located on upper walls and ceilings that are out of reach. Panels will also expand due to moisture in the air and may sag slightly when used in high-humidity environments such as interior pools.
Standard sizes include rectangular panels in any combination of thickness at 1″, 1-1/2″, or 2″ and face dimensions of 12″ x 24″, 24″ x 24″ or 24″ x 48″. Flat surface panels are available in any custom size up to 2″ thick x 50″ x 90″. Panels may be cut to any custom two-dimensional shape including curves; consult factory.
Both flat- and patterned-face panels are available.
The Standard colors are white, light gray, and medium gray. White is stocked and ships in 2 weeks. Light gray and medium gray require 4-6 weeks.
Best acoustical results and economy are achieved with Furred and Spaced Type J mounting per ASTM E795 utilizing hot melt adhesive and foam standoff mounts. Panels can also be Direct Attached Type A, Suspended Type E or Furred and Butted Type F-50.
Yes. Section 2603.3 requires foam plastic cores of manufactured assemblies to have a flame spread index of not more than 75 and a smoke-developed index of not more than 450. In addition, panels are tested per UL 94 for flammability of plastic material and demonstrate Class V-0, and for low density foam HF-1. Basotect® is so fire resistive it is used for fire protection.
Basotect® by BASF, an open-cell low-density melamine-based foam that has extraordinary sound absorption characteristics. Basotect® has a Class A fire-rating per ASTM E84 with a flame spread index of 5 and smoke-developed index of 0.
The joint between partitions and mullions can be a major sound flanking path, especially when building standards do not allow rigid attachment of the partitions to the mullions, and when there is expected interstory drift, thermal expansion, and wind load deflection. Independent tests by NGC show a Transmission Loss differential of 15 dBA at middle and high frequencies between sealed and unsealed joints, a substantial difference.
The standard color is black rubber. Contact the factory for custom colors; minimum order quantities (MOQ) will be required for custom colors.
Prior to constructing the partition at the mullion cut the flat profile seals to length. Short leftover pieces may be butted together. Remove the protective cover on the mullion-side PSA strip (keep the cover on the wall-side PSA during this step), set in place and apply pressure. Prepare a small pre-finished section of partition, usually of the same depth as the spandrel shelf, complete with corner trim and compound, perhaps even sanded and painted. Remove the PSA cover strip from the partition side of the seal and immediately set the prepared section of partition in place, applying pressure to set the adhesive.
Custom cove profile will require trimming of the cove edge where it passes by horizontal mullions including top, bottom and any intermediates.
No. The interior partition that sits on the floor, and the mullion that is connected to the exterior wall, are allowed to move in relation to each other. Offset pressure sensitive adhesive strips (PSA) connect the Mullion Seal to both the partition and the mullion.
Neoprene, a dense and resilient rubber selected for its ability to isolate sound and vibrations. Neoprene also remains extremely flexible and does not deteriorate with exposure to ultraviolet light.
Conceptually, the ΔIIC values for the components of the floor/ceiling system should add together to provide the IIC for the system. However, the actual sound transmission values at different frequencies will affect the results. Better estimates can be analyzed if tests from all components are available.
The standard color is black.
Acoustic Sleepers are 1-1/2″ wide, 1/4″ high, and are available as pads (1-1/2″ square) and strips (8′ long). They can be easily cut with a knife to any length.
Yes. The Acoustic Sleeper is made of solid neoprene rubber, not wood, and IBC Section 718.2.7 does not apply. Independent tests per ASTM E2179 of sleeper pads at 24-inches under plywood performed at ΔIIC-18 and is a major component of the Impact Insulation Classification of floor systems to comply with IBC Section 1207.3. When used over a concrete deck it achieves IIC-46 even before a finish floor or ceiling is added to the underlayment system.
A critical goal of isolating impact noise is to minimize contact between the finish floor surface and the supporting structure. More than 99.2% of the floor area actually floats on air with Acoustic Sleeper installations; continuous mat systems don’t do that.
Neoprene, a dense and resilient rubber selected for its ability to isolate vibrations.