Intumescent pipe collars are passive fire protection products designed to reinstate fire resistance where combustible pipes penetrate fire-rated walls and floors. In the event of a fire, the intumescent material rapidly expands to crush and seal the softened pipe, helping to prevent the spread of fire, smoke and hot gases between compartments. Suitable for a wide range of plastic pipe types and installation configurations, these collars are typically surface-mounted and tested to provide up to 4 hours fire resistance when installed in accordance with approved details, making them an essential component of compliant fire-stopping systems in residential, commercial and industrial buildings.