The main characteristics of polysulfide sealant

Because liquid polysulfide polymer main chain containing -ss- bond , and is saturated , so the sealant made ​​with unique properties : oil, water , solvent resistance to atmospheric aging , resistance to radiation , low temperature , good song , excellent air tightness . Can be used for construction projects , large reservoirs, diversion works , sewage treatment , bolt security seals roads, bridges , doors, windows and other joints , settlement is sealed.
l, adhesion : polysulfide sealant for cement , steel, glass, wood , natural stone , etc. have good adhesion. General building and water conservancy projects on the appropriate use of low modulus, high elongation polysulfide sealant , its bond strength ≥ 0.2Mpa, Elongation ≥ 300%.
2, the water resistance : polysulfide sealant for water, tap water, distilled water, the role of stability , compared to seawater ( salt ) the minimum change in weight .
3 , acid and alkaline able to: polysulfide sealant resistant to strong acids, alkalis . However, the dilute mineral acid, vehicle seals alkali and various salts , or stable .
4 , heat aging properties : polysulfide sealant heat aging performance very good, long-term in a 40 ℃ ~ 120 ℃ working conditions .