2100MS Adhesive Sealant

ERSystems® 2100MS Adhesive Sealant is a high performance reactive silyl-modified adhesive sealant. It is a one-component moisture-cure sealant that exhibits excellent bond strength after cure. It imparts integral flexibility, superior adhesion and resistance to ultraviolet and infrared radiation. Ease of application, minimum shrinkage, fast skin formation, and primerless adhesion to most building materials and substrates make this an excellent choice for an all purpose sealant.


  • Permanently flexible
  • Easy to gun – Easy to tool
  • Cures to a tough, durable, elastic consistency with excellent cut and tear resistance
  • Paintable and stainable
  • Primerless adhesion to substrates including galvanized steel, aluminum, concrete, glass, Galvalume®, Galvalume-PLUS®, Acrylume®, Zincalume®, Kynar 500®, vinyl, fiberglass and ABS
  • Adheres to moist, nonporous substrate


  • 20 Oz. Sausage
  • 2.5 Gal. Pail


  • White

* OneStep Adhesive Sealant has been renamed 2100MS Adhesive Sealant