The addition of spacer cubes to butyl sealants helps to prevent the sealant from bottoming out during installation.
Butyl sealant tapes and pumpable butyl sealants will migrate out of metal building joints after installation due to the daily thermal expansion and contraction that occurs in all buildings. Adding spacer cubes helps to prevent the sealant from pumping down lower than the cube thickness, helping to maintain a proper seal.
Geocel 2300 Construction Tripolymer Sealant
2300 Construction Tripolymer Sealant is a single component, high-performance elastomeric sealant for use in a wide variety of roofing, trim, architectural metal, manufacturing, underdeck system, solar roof system, and general construction applications.