Polysulfide Sealant for Insulating Glass Units
Polysulfide sealant is a flexible, two-component thiokol-based sealant specifically developed for the production of insulating glass units (IGUs). It serves as a high-performance secondary seal, providing long-term durability, weather resistance, and structural stability.

Characteristics
Moisture Vapor Transmission Rate: 6 g/m²/24 h (2 mm film thickness)
Temperature Resistance: -40°C to +80°C
Working Time: 30–45 minutes at 23°C and 50% relative humidity
Curing Time: Approximately 6 hours at 23°C and 50% relative humidity
Application Temperature: +15°C to +40°C
Packaging: 203.5 L drums
Shelf Life: 6 months when stored in cool, dry conditions below 25°C
Advantages
Excellent adhesion to all types of glass, aluminum, and steel
Suitable for both manual and automated application
Non-sagging in vertical joints
Outstanding mechanical performance and stress resistance during application and service life
Resistant to a wide range of weather conditions, including rain, snow, and extreme temperatures
Compatible with all materials commonly used in the assembly of insulating glass units
Applications
Polysulfide sealants are widely used as a secondary sealing system in insulating glass units, where they provide excellent mechanical strength, long-term elasticity, and reliable protection against environmental influences. Their durability and compatibility with standard IGU components make them a trusted solution for residential, commercial, and architectural glazing applications.