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Eucolastic 1 NS 600 ml

Single-Component, Polyurethane Hybrid Sealant

EUCOLASTIC 1NS is a moisture-cure, single-component, non-sag, low-modulus polyurethane hybrid joint sealant. Eucolastic 1NS is designed with a distinctive silane-terminated polyurethane polymer that outperforms stand-alone polyurethane sealants. When fully cured, Eucolastic 1NS is an exceptionally durable sealant in dynamic joints, providing long-lasting adhesion.


  • Concrete control & expansion joints
  • Precast concrete panels
  • External insulation finishing system (EIFS)
  • Window & door perimeters
  • Masonry
  • Interior and exterior applications

Features and Benefits

  • At 27°C, it skins quickly and is tack-free in 3–4 hours.
  • During temperature cyclic movement, stays adhesively and cohesively bonded.
  • Exceptional mobility capability of ± 35%
  • Paintable
  • No frequently asked questions for this product