... building materials; 2.clear,white,black,gray etc JH-378 Neutral transparent silicone Sealant1.Characteristics:Belongs to RTV ... : PerformanceNational StandardGB/T 14683-2003Measured ValueTesting methodJH-390 & JH-3900Slumpability (mm)≤30GB/T 13477Extrusion (ml/Min)≥80318.6Tack ... of the materials6.Color and Package:Color: Transparent to JH-378Package: JH-378: 310ml cartridge; net 300ml7. Joint Design and ...