A high density mineral fibre batt (180kg/m³ fire batt) factory coated on both faces to a precise thickness with a white durable fire resistant mastic.

Used to fire stop large holes in floors and walls with or without service penetrations. Also used as a linear gap seal up to 1200mm high x infinite length in walls and up to 600 mm wide x infinite length in floors. FIREFLYBatt™ seals provide solutions for multiple service penetrations within various wall substrates (FR plasterboard, Hebel Powerpanel, Pronto Panel, Speedpanel, block & masonry) and floor/ceiling substrates (concrete, masonry and FR plasterboard).

Available batt size 1200mm x 600mm x 50mm