EZ STIK Trowelable Sealant

EZ-STIK Trowelable Sealant

EZ-Stik #3 is a trowelable butyl sealant suitable for pumping or trowel dispensing onto concrete structures.

Document Downloads

Download Product Literature

EZ-STIK’s butyl sealant is primarily used as a backplaster on manhole and box culvert joints and as an external manhole chimney seal. It can be used as a primary or secondary flexible seal that bonds to a wide variety of materials. The physical properties of the sealant resists temperature extremes, acids and alkalis.

How It Works

  • Clean and dry surface.
  • Apply and smooth with a clean edge trowel blade at 1⁄4” minimum thickness.
  • If using in water collection system, do not backfill immediately.

Why It's Better

  • High-quality butyl rubber base.
  • Excellent gap and crack filling properties.
  • Resistance to acids and alkalis.
  • All-weather protection.
  • A permanent flexible solution.

Where To Use

  • Concrete joint repair
  • Sanitary Manhole Joints
  • Stormwater Manhole Joints
  • Irrigation and Drainage Systems
  • Box Culverts
  • Elliptical/Arch Pipe
  • Architectural Foundations
  • Concrete crack repair
  • Underground Utility Vaults
  • Stormwater Treatment & Inlet Structures
  • On-Site Treatment Tanks
  • Grease Interceptors
  • Wet Wells

TROWELABLE EZ-STIK #3 is available in 5 gallon pails or in cartons of 12 – 11 ounce caulking tubes.

Meets or Exceeds

This sealant meets or exceeds:

  • Federal Specification TT-S-001657 for Solvent Release Butyl Sealants


Must ship via truck freight due to flammability.


  1. Clean and dry the concrete surface to which the sealant will be applied. Remove any dirt and/or mud adhering to the surface.The surface must be dry for the sealant to adhere and bond to the concrete. #4 EZ Primer can be applied to the surface to increase adhesion of the #3 EZ-STIK
  2. The sealant should be applied with a smooth-edge trowel. Then it should be applied a minimum of 1/4” thick. The surface to be protected must be totally covered with no surface showing through the sealant. Coverage is 7 square feet per gallon when applied 1/4” thick.
  3. When using this sealant as an external chimney seal (Butyl Rubber Backplaster), apply it 6” from below the top cone to the casting. Then it should be applied 1/4” thick with a smooth-edge trowel. After coating the chimney, with the sealant, wrap the applied #3 EZ-STIK with a 6mm polyethylene plastic sheeting by Visqueen or approved equal. Wait 20 minutes before back-filling.
  4. The structure should not be back-filled for a minimum of 20 minutes after coating with the sealant. This allows the solvents to dispense throughout the #3 EZ-STIK.