Crafted with precision, Kingspan Fire Mastic provides a durable and airtight seal for various applications, boasting a convenient volume of 250-500 ml. The mastic, a blend of silicone and siloxane, offers exceptional flexibility and is suited for use in fire-rated assemblies, carrying an A1 fire rating.This product, presented in a crisp white hue, is ideal for sealing less than 1 metre of joints and meets the stringent standards for building construction. The sealing mastic ensures both functionality and aesthetics, with a formulation that is both resilient and reliable for an array of sealing requirements.