Sika - Sikaflex-406 KC sealing material

Self-leveling, high-quality polyurethane sealing material. Sikaflex-406 KC is one component, fast curing, flexible and has high mechanical and chemical resistance. It has been specially designed for the flexible sealing of connections between rails, the substrate and the materials of the Icosit KC system. By adding the Sikaflex-406 KC Booster accelerator, fast and homogeneous hardening of the material is obtained.

Features

• deformability 25%
• low stresses at the edges of the joint
• very high mechanical and chemical resistance (e.g. to diesel and aviation fuel)
• slots and sprinkled with sand can be put into service after 3 hours

Application

The product is used for adjacent joints between steel, certain types of asphalt, granite, concrete, as well as adjacent joints in track surfaces, pavements and floors. In addition, Sikaflex-306 KC is used for expansion joints in road and airport pavements, pedestrian areas and other places where rapid commissioning is required.

Technical data

• chemical base polyurethane in i-Cure technology with accelerator in Sika Booster technology
• density: Sikaflex-406 KC ~ 1.40 kg / dm3; Sikaflex-406 KC Booster ~ 1.15 kg / l; mixture ~ 1.40 kg / dm3
• Shore A hardness: ~ 28 with the addition of Sikaflex-406 KC Booster (after 28 days); ~ 16 with Sikaflex-406 KC Booster (after 8 h)
• incisal tensile modulus ~ 0.45 MPa at 100% elongation (23 C) with the addition of Sikaflex-406 KC Booster
• elongation at break ~ 700% with Sikaflex-406 KC Booster
• elastic recovery ~ 90% with Sikaflex-406 KC Booster
• tear propagation resistance ~ 8.0 MPa with the addition of Sikaflex-406 KC Booster
• resistance to water, sea water, cement slurry, diluted alkalis, water solutions detergent and temporarily resistant to diesel oil, oil and aviation fuel
• operating temperature from -40 C to +80 C
• working life ~ 20 min (23 C / 50% r.h.) with the addition of Sikaflex-406 KC Booster
• dust free: without sand ~ 3.5 h (+23 C); with sand ~ 1 h (+23 C)
• hardening time: ~ 24 h until full mechanical strength is achieved with the addition of Sikaflex-406 KC Booster; for surfaces sprinkled with quartz sand, recessed slots can be loaded with traffic of vehicles with rubber tires after approx. 2 hours (+23 C / 50% RH); dust free after approx. 3.5 h (+23 C / 50% r.h.) with Sikaflex-406 KC Booster
• product declaration PW EXT-INT CC, PN-EN 14188-2 (according to PN-EN 15651-4)
• packaging: Sikaflex-406 KC - 10 liter container; Sikaflex-406 KC Booster - 150 ml foil pack