... after the dense mesh structure, can effectively prevent flame FS - E elastic fire sealant is a low modulus, ... fire sealing material ) NO.Inspection itemsTechnical indexes25HM20HM25LM20LM1densityE. 1.3± 0.1 g/cm32Prolapse degreesvertical≤3mmlevelWithout distortion3Dry time table≤3h4Extrusion sex ... into the backing materials;3, coating thickness of FS - E stipulated in backing material,4, use tools ...