Insul-Joint Expansion Joint, 1/2 in Gray, is a closed-cell polyethylene expansion joint filler designed to prevent cracks and breaks during concrete expansion and contraction. It's not the flashiest part of a project, but it does the heavy lifting so your concrete can move without drama.

Key Features & Design

• Material: closed cell (non-crosslink) polyethylene expansion joint filler.
• Construction: Insul-Joint is extruded from high quality closed cell polyethylene foam.
• Applications: Suitable for all standard concrete construction, such as floor slabs, driveways, sidewalks, parking garages, highways and runways.
• Color: Gray.
• Size: 1/2 in thickness. Available in all sizes.
• Standards: ASTM D 4819 Standard Specification for Flexible Cellular Materials Made From Polyolefin Plastics; ASTM D 545 Standard Test Methods for Preformed Expansion Joint Fillers for Concrete Construction (Nonextruding and Resilient Types); ASTM D 3575 Standard Test Methods for Flexible Cellular Materials Made From Olefin Polymers.

Whether you’re pouring a new floor slab, a driveway, or a highway ramp, Insul-Joint helps your concrete handle expansion and contraction without the drama of cracks. Available in gray and all sizes, it’s the practical choice for lasting performance.