CEM 423 is one component sealant for floor and connecting joints .It is a one-part, elastic poly-urethane sealant that cures upon exposure to at-mospheric moisture. It is use according to IVD Instruction Sheet No. 1 (IVD = German Sealant Manufacturers’ Association).
Manufaturer: BPA
Areas of Application
Sealing of interior and exterior expansion and connecting joints, e.g. in warehouses, underground car parks, manufacturing plants, parking garages, entrance halls, staircases. Sealing of joints in concrete, cast plaster floors, natural stones, sewage plants, etc.
Application
Adhesion surfaces must be dry, sound and free of dust and release agents. Compatibility with the substrate must be tested. Excellent adhesion on most common substrates.
Density approx.
1.3 g/cm3 DIN EN ISO 10563
Application temperature
+5 °C to +40 °C
Service temperature
-40 °C to +80 °C DIN 52455-4
Hardness shore A
Approx. 35
Modulus at 100 % Extension
0.6 N/mm2, at 50 % 0.4 N/mm2 DIN EN 28340
Movement accommodation
Max. 25 %
Viscosity
Non-sagging
Skin formation time
Approx. 1 to 2 hours
Cure rate
Approx. 2 mm / 24 h
Elastic recovery
>80 %
Change in volume
Approx. -6 %
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