STI SpecSeal SSP Firestop Putty Tube | 36 Cubic In
The STI SpecSeal® SSP Firestop Putty Tube | 36 Cubic Inches is a moldable, intumescent firestop solution designed to seal cable and conduit penetrations in fire-rated walls and floors. This flexible firestop putty helps prevent the spread of flames, smoke, and toxic gases, maintaining the integrity of fire-rated building assemblies in commercial and institutional environments.
Formulated with intumescent technology, the putty expands when exposed to heat, filling gaps and openings around cables, conduits, and other penetrations. Its pliable consistency allows for quick hand application, making it easy for installers to seal irregular openings and cable bundles commonly found in telecommunications rooms, data centers, electrical closets, and structured cabling pathways.
The 36 cubic inch tube format provides additional material for sealing larger openings or multiple penetrations while still allowing the putty to remain reusable and removable. This makes it ideal for environments where cables may need to be added, removed, or reconfigured over time.
Key Features
- Intumescent firestop putty designed for cable and conduit penetrations
- Expands when exposed to heat to block flames, smoke, and gases
- Moldable putty for quick and easy installation
- Ideal for telecommunications rooms, data centers, and electrical installations
- Reusable and removable for cable changes or upgrades
- Helps maintain fire-rated wall and floor assembly integrity
- 36 cubic inch tube for sealing larger openings and multiple penetrations
Protect cable penetrations and maintain fire-rated barriers with the STI SpecSeal SSP Firestop Putty Tube. Order today to keep your installations safe and code compliant.





