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Composite sheets are commonly used for firestopping large openings where a clean, neat finish is required. These sheets provide a consistent exterior surface, supporting both appearance and performance in firestop applications.
They can be used in combination with other STI Firestop products to seal penetrations in fire-resistance rated walls and floors. Suitable for metallic and non-metallic pipes, insulated pipes, cable trays, cables, conduits, and blank openings, composite sheets support reliable sealing across a wide range of penetration types.