Two-component polysulfide sealant, water expansion of the seal

Technical indicators polysulfide sealant building performance standards: JC483-1992 performance name Class A Class B Grade Qualified Premium grade First grade Qualified density, g / cm3 1.50 ± 0.1 pot, h 2 ~ 6 dry time, h ≤24 exudative index ≤4 rheology sag (N type), mm ≤3 leveling (L-type), mm smooth temperature flexibility, ℃ -30 -40 -30 maximum tensile adhesion tension strength, MPa ≥1.2 ≥0.8 ≥0.2 maximum elongation,% ≥100 ≥400 ≥300 ≥200 Loss on heating,% ≤10 ≤6 ≤10 polysulfide sealant construction Note 1) Applicable period: two component polysulfide A building sealant, Part B after mixing, the mixture gradually thickens, exceed the applicable period can not be used. Ambient temperature when used to cure sealant which plays a big role, the higher the temperature, the shorter the pot life, slow curing temperature is too low, the construction temperature 5 ℃ ~ 35 ℃ appropriate. 2) When used, the width to depth ratio of the sealing material should be appropriate. 3) polysulfide sealant storage building to avoid direct sunlight, should be placed in a cool dry place; at 5 ~ 26 ℃ ambient temperature can be stored for six months, for too long will affect their physical and performance. Mobile: 13931819338 Contact: Wan Hai Liang QQ number: 2218838017 E-mail: hongchuangxiangsu@163.com