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SIKA Sikaflex Construction AP | WPD Group

Elastic polyurethane sealant for construction joints

Sikaflex® Construction (AP) is a one part, moisture curing, elastic joint sealant based on polyurethane. It is suitable for indoor and outdoor applications, in some cases without the need for priming of the substrate.


Suitable for sealing joints in building construction such as:

  • Balcony parapets
  • Connection joints (around windows and doors, facades, metal claddings, concrete elements), as well as joints in wood and metal structures
  • Precast concrete

Characteristics and Advantages

  • Movement capability ± 25% (ASTM C719)
  • Good adhesion to many substrates
  • Very short cut-off string
  • Tackfree surface
  • High tear strength
  • Very low emissions


600 ml sausage


Concrete grey


Sikaflex Construction AP PDS