Sikaflex® Construction AP: High Performance Polyurethane Sealant 600ml


Please note, product is BOX BUY only.

Sikaflex® Construction AP is a high-performance 1-component polyurethane sealant specially designed for a wide range of sealing applications. Its moisture-curing property allows for easy application and ensures a durable, elastic joint seal.

Product Characteristics:

  • Colour: Grey, White, Black
  • Size: 600ml

Key Features:

  • Movement capability of ± 25% (ASTM C 719)
  • Good workability for easy application
  • Strong adhesion to various substrates
  • Non-sag on vertical and soffit joints up to 30 mm width
  • Ready for immediate use - no mixing required
  • Can be painted over with many paint systems
  • Non-corrosive and weather-resistant


Sikaflex® Construction AP is ideal for:

  • Movement and connection joints on porous substrates
  • General sealing applications indoors and outdoors

Technical Information:

  • Shore A Hardness: 24 approx. (after 28 days) (ISO 868)
  • Secant Tensile Modulus: 0.35 N/mm² approx. at 100% elongation (23 °C) (ISO 8339), 0.50 N/mm² approx. at 100% elongation (−20 °C)
  • Elongation at Break: 700% approx. (ISO 37)
  • Elastic Recovery: 90% approx. (ISO 7389)
  • Tear Propagation Resistance: 5.0 N/mm approx. (ISO 34)
  • Movement Capability: ±25% (ISO 9047), ±25% (ASTM C 719)
  • Service Temperature: −40 °C to +70 °C

Joint Design:

The joint width should be designed to suit the required joint movement and sealant capability. Maintain a width to depth ratio of 2:1 for optimal results (see table for standard joint widths).

Important Considerations:

  • Conduct preliminary trials when over-painting to ensure compatibility
  • Colour variations may occur due to exposure to chemicals, high temperatures, or UV radiation
  • Avoid usage on natural stone, bituminous substrates, and materials that may attack the sealant
  • Not suitable for joints under water pressure or permanent water immersion
  • Avoid exposure to alcohol-containing products before curing

Additional Product Downloads:


Prices do not include GST

Sikaflex® Construction AP: High Performance Polyurethane Sealant 600ml

Your cart