STI News

STI Unveils Enhanced Smoke ‘N’ Sound Acoustical Spray

Written by STI Firestop | Feb 26, 2026

SOMERVILLE, N.J., February 26, 2026Specified Technologies, Inc. (STI) proudly announces the relaunch of its Smoke ‘N’ Sound Acoustical Spray, with targeted refinements focused on application control, hangability, build consistency, and finish quality.

Smoke ’N’ Sound (SNS) Acoustical Spray is engineered to seal gaps, seams, and openings associated with smoke control and sound attenuation in non-fire-rated wall, floor, and ceiling assemblies.

The newest SNS Spray formulation underscores Specified Technologies’ belief that every building component deserves intentional, performance-driven engineering. Designed for efficient application, consistent appearance, and lasting durability, STI’s solution empowers installers and ensures a clean, high-quality finished result.

Stephen Bennett, Product Manager at Specified Technologies, stated, “The team is excited to offer these enhancements to our Smoke ‘N’ Sound Spray formulation. Customers will note a forgiving formulation that allows for a wider range of pressure set-ups and spray tip apertures. In addition, we have improved hang in thicker applications, increased viscosity to better cover uneven mineral wool and imperfect substrates while continuing to deliver superior crack resistance. The team built on the performance that has defined the category.”

Specified Technologies Inc. is dedicated to advancing life and building safety through innovative passive fire protection systems and digital solutions that help prevent the spread of fire, smoke, and hot gases. The company’s SpecSeal® and EZ Path® product lines are engineered for simplified installation and high performance, often resulting in lower installed costs. With firestopping as its sole focus, STI concentrates all resources on delivering fully tested, high-quality, and forward-thinking firestopping solutions.   

About Specified Technologies, Inc.
Specified Technologies, Inc. (STI) is an industry leader in the development of firestopping systems, smoke and sound control products, and innovative construction solutions. For more than 30 years, STI has partnered with contractors, engineers, and building owners to provide tested, trusted, and code-compliant solutions worldwide.

For more information about the Smoke ‘N’ Sound Acoustical Spray, visit www.stifirestop.com.