Smoke and acoustic sealing is a critical element in modern construction, especially when isolating sound in residential, commercial, or mixed-use environments. One product developed specifically for such tasks is designed to address non-rated assemblies where air leakage and noise transmission pose challenges. This elastomeric solution is tailored for sealing penetrations involving cables, pipes, or conduits, helping minimize smoke migration and enhance sound dampening across interior partitions and floor/ceiling assemblies.
Table of Contents
Product Composition and Formulation
This sealant is water-based and acrylic-latex in composition, providing both flexibility and low environmental impact. Its formulation contains no asbestos or hazardous fillers and emits very low levels of volatile organic compounds (VOCs). This makes the material suitable for use in occupied or sensitive environments, such as schools, hospitals, and offices. Additionally, its elastomeric behavior enables the product to retain its form while accommodating joint movement or thermal expansion, a valuable trait for materials exposed to seasonal fluctuation.
The product carries a mold resistance rating according to ASTM G21 and supports movement capability classification per ASTM E1399, with a performance range of up to ±33%. This ensures a high degree of reliability in dynamic building joints where vibration or settling may otherwise lead to premature material failure.
Sound and Smoke Control Performance
Sound attenuation is a principal performance factor for this solution. It contributes to achieving an STC (Sound Transmission Class) rating of 69 when integrated into appropriate wall assemblies. This positions the sealant well within the requirements for high-performance acoustic environments such as recording spaces, conference rooms, or multi-unit dwellings. In addition, the material has been tested to provide an air leakage rating below 1 cfm per square foot, helping contain cold smoke migration through electrical and mechanical penetrations.
Because it is not fire-rated, this sealant is not designed to substitute for UL-classified firestop products. It is intended solely for non-rated partitions and assemblies. When applied according to specifications, however, it effectively blocks the passage of smoke and enhances the total sound isolation package within the envelope of construction assemblies. The formulation is also compatible with most building materials, including gypsum board, concrete, wood, and common plastics used in piping systems.
Application and Use Cases
Installation is designed for convenience, using a 20.2-ounce sausage pack format that fits standard dispensing guns. This format is often preferred on construction sites due to its lower packaging waste and extended application length per unit. The material is applied to fill gaps or voids surrounding pipes, ducts, and cable bundles passing through walls or floors. Upon curing, it forms a flexible seal that can be painted over if needed.
These properties make the material suitable for use in both renovation and new construction projects. It is commonly used in apartment buildings, hotels, hospitals, and commercial offices to minimize sound transfer between rooms. Additionally, it supports LEED criteria due to its low-emission composition, reinforcing its alignment with green building initiatives. When installed correctly, this product serves as a valuable component in integrated acoustic and air-sealing strategies.
Durability and Maintenance
Once fully cured, the seal remains stable under standard operating conditions. It can tolerate service temperatures ranging from below freezing to approximately 120°F, making it suitable for interior climate-controlled environments. The expected shelf life under optimal storage conditions is up to two years. Users should ensure the material is stored above freezing temperatures and below recommended thresholds to maintain consistency.
In terms of maintenance, once installed and cured, the sealant typically does not require ongoing inspection unless penetrations are altered. If renovations or new service lines are introduced, the surrounding seal should be reassessed and reapplied as necessary to maintain integrity.
Pros
- Low-VOC formulation supports indoor air quality and environmental standards
- Tested STC performance rating of 69 for effective acoustic isolation
- Classified movement capability (±33%) enhances long-term durability
- Mold-resistant and compatible with common construction materials
- Paintable and easy to apply using standard sausage pack equipment
Cons
- Not intended for use in fire-rated assemblies
- Should not be used in areas exposed to continuous water or immersion
Recommended Use Considerations
Contractors and building professionals seeking a practical, compliant solution for controlling sound and cold smoke migration in non-rated assemblies will find this option aligns well with both functional and environmental requirements. Its ease of application and verified performance make it a strong candidate for projects involving acoustic sealing in wall and floor penetrations. For those assembling or maintaining multi-unit residential spaces, offices, or sound-sensitive facilities, this acoustic sealant delivers essential capabilities with reliability.
Applications requiring integration with additional noise-dampening elements—such as resilient channels, MLV barriers, or acoustic foam—may benefit from the inclusion of this elastomeric sealing solution to complete an airtight, sound-isolating envelope. To maintain optimal performance over time, professionals should follow the manufacturer’s guidelines for surface preparation, depth, and cure conditions. For general-purpose acoustic and smoke control in interior construction, this smoke and sound sealant remains a versatile and dependable tool in the soundproofing toolkit.