Firestop, Smoke, and Sound Solutions for Specialty Firestop Contractors

Formulated with the Contractor in Mind
SpecSeal® LCI Intumescent Sealant works into tight annular spaces between penetrants and wall or floor assemblies. LCI Sealant's formulation makes it equally suited for wall, floor, and overhead application without slumping or sagging. Requiring minimal tooling, tested with over 25 different metallic and plastic pipe types, cabling, electrical pathway types, and no special tools for application, LCI is the go to solution for maintaining fire, smoke, and sound protection in fire-rated construction.
Solutions for Mixed M.E.P. Penetrations
SpecSeal® SBR Firestop Blocks expand when exposed to high temperatures to resist the passage of fire, smoke, and hot gases. SBR Blocks easily compress and conform around any penetrant stacking in a brick-like manner. SBR Firestop Blocks may be used to seal new or existing penetrations range from small single penetrants conditions up to large openings with multiple penetrants making short work of complex penetration firestop conditions.
- Reinstallable for easy retrofitting of various pipes, cables, and innerducts
- Lightweight for ease of installation
- Easier wire screen requirements for large openings and 2 hour ratings
- May be cut to size
- No special tools required
- Superior air leakage ratings
- No cure time -> fast application
- Dust-free, fiber-free, halogen-free, and solvent-free

Thin Profile Wrap Strips for Complex Piping Systems
SpecSeal Wrap Strips a thin profile highly expansive intumescent strip available in a variety of sizes and types to tackle any combustible penetration. SpecSeal Wrap strips can be used on their own for small diameter plastic pipes or in conjunction with restraining steel for plastic pipes up to 18 in. diameter. Wrap Strips are an excellent solution for contractors addressing a large range of plastic pipe types and sizes on a project.
- Huge library of tested and proven listings
- Minimize waste by using only what you need
- Tested with 17 different plastic pipe types
- FBC System Compatible Lubrizol CPVC Piping Systems
Multi Purpose Endothermic Sealant
SpecSeal® LC Endothermic Sealant is a latex based sealant formulated for addressing fire-rated construction joints as well as sealing non-combustible penetrations. SpecSeal® LC Sealant releases chemically bound moisture under fire exposure, resisting the passage of smoke and flame while resisting temperature rise.
- Packed in 10.1 and 20 ounce cartridges, 29 ounce sausages, and 5 gallon pails
- Available in White and Brick Red colors
- Non-tapered buckets for ease of bulk loading
- Tested for use in Joint conditions as well as Penetrations
- FBC® System Compatible with Lubrizol® CPVC Piping Systems

System Search & Submittal Builder
Guided search for finding the right firestop system for your condition and building Firestop Submittals for submission to your AHJ.
Watch More VideosTracking Compliance for the Life of the Building
Streamline and simplify the process of tracking firestop conditions across your facility. Our Firestop Locator (FSL) tool enables facilities management and team leads to locate and document firestop conditions, what products and systems were used, who installed them, and if they've been inspected and approved all from your web browser or mobile device.
- Fully interactive 2D floor plans
- Detailed reporting including Corrective Action Reports
- Internal auditing or third party inspection supported
- Apps for web, Android, and iOS
Comprehensive Barrier Management Planning
Barrier management entails identifying all types of fire rated assemblies including the types of penetrations, and the activities that cause them to become breached. The goal of the Barrier Management Program is to prepare and mitigate possible issues through detection and suppression of potential future loss from fire. The program does this by setting expectations for all parties involved including vendors, contractors, and facility maintenance personnel to maintain a specific set of Firestop Systems for installation and inspection of assemblies to have a better understanding when situations of non-compliance might arise.

Ease of System Selection and Submittal Generation
Guided search for finding the right firestop system for your condition and building Firestop Submittals for submission to your AHJ.
- Find firestop systems on your phone, tablet, or the web
- Streamlined firestop system submittal package
- Integrate user documents, company logos, and Engineering Judgements
Firestop Penetration Design and Collaboration in Revit
Firestop Clash Management® (FCM) is our Autodesk® Revit® Plugin that takes the guess work out of firestop solution design and selection. Utilizing clash detection and model parameter data, FCM scans your model detecting locations where construction joints and penetrations occur and recommends appropriate firestop systems at these locations. Additionally, FCM places marker and product objects within the model ensuring that system selection are present within the model and accessible to project team members.
- Automates system selection and placement within the mode
- Functions at your workstation, no need to manually export to third party systems/services

Markets We Serve
Explore our diverse range of offerings tailored to cater to a wide spectrum of markets & industries.
Healthcare
We understand the challenges you face maintaining fire life safety compliance in the healthcare physical environment, and we can be your strategic partner in providing cost effective, sustainable solutions. STI offers a full catalog of tested solutions, as well as a dedicated team of Healthcare experts.
Learn more about our Healthcare SolutionsDate Center
The Data Center environment represents a unique challenge compared to other occupancy types. Beyond life safety, physical security, containment of conditioned air, and increased electrical and low voltage pathway infrastructure further complicate building design.
Learn more about our Data Center SolutionsGovernment
Protection and security for government facilities needs to be constantly maintained. STI partners with government agencies to help protect staff and critical infrastructure alike in disaster scenarios. EZ Path® not only protects lives and property, it’s maintenance-free design assures uninterrupted security.
Learn more about our Government SolutionsHigher Education
Fire life safety and acoustic protection are critical background elements of any successful educational intuitions. Providing robust and reliable protection for students and staff alike while creating a peaceful environment free of distractions for students to excel in.
Learn more about our Higher Education SolutionsFinance
Privacy, security, and safety are major priorities for financial institutions. EZ Path® not only protects lives and property, it’s maintenance-free design assures uninterrupted security. When it comes to protecting critical infrastructure, EZ Path is the only logical choice.
Learn more about our Finance Solutions
Tools & Resources
We’ve curated an extensive collection of tools and resources tailored to meet the specific needs of professionals in the industry. Our assortment focuses on functional tools and references for Firestop solutions, providing professionals with the knowledge, guidance, and tools necessary to ensure safety, compliance, and precision in their projects, ultimately enhancing the integrity of their construction work.
- Guided search for finding the right firestop system for your condition and building Firestop Submittals for submission to your AHJ
- Find firestop systems on your phone, tablet, or the web
- Streamlined firestop system submittal package
- Integrate user documents, company logos, and Engineering Judgements
Automatically find firestop systems from within AutoDesk® Revit®
Track fire life safety systems on your project via your tablet, phone, or web browser.
Find any and all LEED Credits associated with our firestop products in one place
See how EZ-Path is the best return on investment cable pathway solution on the market
Determine how many EZ-Path Fire-rated Pathways you need based on cable size and count
These powerful tools guarantee the right systems are selected for the fastest and most cost-effective installation for all your projects.
LCI Intumescent Firestop Sealant
SpecSeal LCI Sealant has excellent caulking properties making it easy to apply in vertical applications as well as overhead.
SBR Firestop Blocks
SpecSeal® Firestop Blocks are penetration firestop products resembling foam bricks.
LC Endothermic Firestop Sealant
SpecSeal LC Endothermic Sealant is a latex-based gun grade firestop sealant for construction joints and non-combustible penetrations.

Where to firestop?
STI products and systems offer innovative firestop solutions for all types of new construction and retrofit applications. Since firestopping is our only business, we concentrate all our resources on providing the highest quality, fully tested, innovative firestopping solutions