• Pro Stik applied to concrete joint
  • Pro Stik Butyl Sealant for concrete joints
  • Pro Stik Butyl applied to concrete manhole
  • pro-stik-1

PRO-STIK Butyl Sealant

Pro-Stik is an all weather butyl rubber sealant for concrete joints. Butyl sealants are far superior to mastic made from oil or asphalt because they are rubber based.

Download Literature Box Culvert Literature

They exhibit physical properties such as superior rebound, compression set, low temperature and high temperature flows that are required for long term sealing performance and ease of installation.

Butyl sealant offers the end user maximum sealing performance and ease of use with no oily mess and are environmentally friendly. Pro-Stik is a high quality butyl rubber joint sealant. Pro-Stik is one of two butyl rubber based sealants we offer for sealing concrete structures. The other is EZ STIK. Butyl sealants are rubber based, and exhibit sealing properties superior to bitumen based products.

Features and Benifits

  • High quality rubber, 98% solids that will not harden, shrink or oxidize.
  • Good adhesion to dry concrete, commonly specified concrete coatings, steel, glass, or painted surfaces.
  • Coated release paper for easy installation.
  • Cohesive properties allow for joint movement.
  • Special primers available for use on damp, contaminated, or difficult surfaces.

Typical Applications

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

Sealant meets or exceeds:

  • ASTM C990 Standard Specification for Joints for Concrete Pipe, Manholes, and Precast Box Sections Using Preformed Flexible Joint Sealants; Section 6.2 Butyl Rubber Sealants
  • AASHTO M198 Joints for Circular Concrete Sewer and Culvert Pipe Using Flexible Watertight Gaskets
Download Specifications


The joints and/or joint surfaces of the structures shall be sealed with a butyl-rubber-based preformed flexible sealant conforming to ASTM C990, paragraph 6.2. The material shall be PRO-STIK or EZ-STIK as supplied by PRESS-SEAL CORPORATION, Fort Wayne, Indiana, or approved equal. The butyl material shall consists of 50% (min.) butyl rubber and shall contain 2% or less volatile matter.

For preformed joint sealants, the sealant shall be sized such that the joint is filled to 50% (min.) of its annular volume when fully assembled, and the sealant shall have the ends kneaded together at the overlap. Primer and/or adhesive as recommended by the sealant supplier shall be employed for adverse, critical, or other applications.

Testing of joints and compliance with construction requirements shall be conducted in strict conformance with the requirements of the sealant supplier.

  1. Dry joint surface if wet.(Joint surface must be dry.)
  2. Clean all dirt, sand, mud, etc. from joint
  3. Remove roll from carton.(Keep away from dirt, etc.)
  4. Place exposed surface down/ place against vertical surface/press against concrete
  5. Apply sealant in continuous ring around the joint (DO NOT STRETCH!)
  6. To complete sealant ring cut off excess sealant with knife or sharp object
  7. Cut sealant so that when cut, the ends form a butt joint.(DO NOT OVERLAP!)
  8. Knead the ends together to finish sealant ring
  9. Remove protective release paper from the sealant ring
  10. Assemble the joint. Align structure section as straight as possible for proper entry of the tongue into the receiving groove and home the structure section. When the structure section is correctly joined, and a compression pressure obtained, PRO-STIK and EZ STIK butyl sealants will flow into a solid-pack and uniformly fill the annular space between the tongue and groove
Roll LengthRolls per
Cartons per
Part No.
.45 X .4511 x 11 mm1/2”21.75 ft6.95 m1224279.1
.45 X .4511 x 11 mm1/2”26.4 ft8.44 m1224279.1A
.50 X .7513 x 19 mm1/2” X 3/4”21.75 ft6.95 m840288.33
.60 X .8015 x 20 mm3/4”14.5 ft4.64 m840279.2B
.75 X 1.0519 x 27 mm1”14.5 ft4.64 m640279.3
.88 X 1.4022 x 36 mm1-1/4”14.5 ft4.64 m440279.4C