HOME > Products > Silicone Business Unit > Addition Type RTV
 
 
 
Condensation Cure Grades
Condensation cure grades cure with exposure to atmospheric moisture. The cure process begins from the outer surface and proceeds inward. Therefore, deep section curing (in excess of 6mm) is not recommended. Typically, tack-free is achieved in 5-60 minutes at 25oC, 50%RH, depending on the grade.
 
Curing Properties: 1 Part condensation Cure
One part condensation cure silicone adhesive and sealants cure when exposed to atmospheric moisture. The cure process begins from the outer surface, and therefore time is required for deep section cure. The cure time is affected by the reaction mechanism and viscosity. At 25oC, 50%RH, it generally reqiires 10-60 minures for the surrace to become tack free. allowing thr workpiece to proceed to the next process, Sufficient adhesion is achieved after 5-15 hours, allowing the workpiece to be moved Eladticity is achieved after 1-3 days of cure time, and full material properties such as electronic performance is achieved after 7days.
Cure Time Test Method:liquid silcone is inserted in a glass tube with an intermal diamater
of 10mm,and measurements of the cure length are taken at specifie intervals.
 
Shear Adhesion Test Method