Eucolastic 1SL

EUCOLASTIC 1SL is a single-component, low-modulus, moisture-cure, self-leveling, polyurethane joint sealant. Eucolastic 1SL is formulated to be extremely durable in dynamic joints. It provides superior wear resistance to rubber tires and pedestrians in high traffic areas.


  • Skins rapidly and is tack-free in less than 5 hours @ 75° F (24° C)
  • Remains adhesively and cohesively bonded during temperature cyclic movement
  • Extraordinary movement capability of +100% / -50%
  • Ease of application; dispense and walk away, up to a 6% slope


  • Concrete control & expansion joints
  • Sidewalks
  • Truck terminals
  • Plazas
  • Swimming pool decks
  • Interior and exterior applications


  • ASTM C 920 Type S, Grade P, Class 50, Use T, M, A, O and I (Class 2)
  • CAN/CGSB 19.13-M87, MC-1-25-B-N


EUCOLASTIC 1SL is available in 30 oz. (887 mL) cartridges (12 per case)

For pricing
and availabilty,

Use our product calculator to estimate the amount of product required.

To ensure we offer the best experience possible, this site uses cookies. By continuing to navigate our website, you consent to cookies being used. To learn more and find out how you can disable cookies, visit our Privacy Policy.