Sikaflex AT Facade Joint Sealant

1-component, moisture-curing, low-modulus elastic sealant

The Sikaflex AT Facade Joint Sealant is a 1‐part, moisture curing elastic sealant based on Silane Terminated Polymers. It's especially formulated for movement and connection joints on porous and non‐porous substrates, where excellent weatherability and highest UV resistance are required. AT Facade is designed for joint sealing of movement and connection joints, porous and non-porous substrates such as concrete, brick, steel metals.

Uses
Sikaflex AT‐Facade is suitable for joint sealing of movement and connection joints between the same or different substrates i.e. for concrete, steel and other metals, brick etc.

Sikaflex AT Facade Joint Sealant Features:

• Fulfils ISO 11600 F, Class 25 LM
  
• Movement capability +/‐25%
  
• Low stress to the substrate
  
• Highest UV resistance, colour stability and ageing resistance
  
• Excellent workability (low extrusion force, perfect smoothability)
  
• Very easy to tool and finish
  
• Excellent adhesion on porous and non porous substrates
  
• Primerless adhesion on many substrates
  
• Over paintable
  
• Solvent free
  
• Silicone free
  
• Matt finish
  
• Colour: Grey, White, Black
  

Sikaflex AT Facade Joint Sealant Specifications:

• Chemical Base: 1‐part Silane Terminated Polymers (PU‐Hybrid technology, moisture curing)
  
• Density: ~ 1.3kg/l depending on colour (DIN 53 479)
  
• Skin Time: ~ 80 minutes (+23°C / 50% r.h.)
  
• Curing Rate: ~ 3mm/24 h (+23°C / 50% r.h.)
  
• Movement Capability: 25% LM
  
• Joint Dimensions: Min. width = 10mm / max. width = 40mm
  
• Sag Flow: 0mm, very good (DIN EN ISO 7390)
  
• Service Temperature: ‐40°C to +70°C
  
• Tear Strength: ~ 5.5 N/mm2 (+23°C / 50% r.h.) (DIN 53 515)
  
• Shore A Hardness: ~ 25 after 28 days (+23°C / 50% r.h.) (DIN 53 505)
  
• E-Modulus:
  0.3 N/mm2 at 100% elongation (+23°C)
  0.5 N/mm2 at 100% elongation (‐20°C) (DIN EN ISO 8340)
  
• Elongation at Break: ~ 550% (+23°C / 50% r.h.) (DIN 53 504)
  
• Elastic Recovery: > 80% (+23°C / 50% r.h.) (DIN EN ISO 7389 B
  

Product Data Sheet

Safety Data Sheet