Insul-Joint Expansion Joint 3/16 In White is a closed cell (non-crosslink) polyethylene expansion joint filler designed to prevent cracks and breaks during concrete expansion and contraction. Available in all sizes, it's ready to handle everything from a tiny sidewalk patch to a highway ramp—without drama.

Key Features & Design

• Size & color: 3/16 in, White — available in all sizes for your specific project needs.
• Material: closed cell (non-crosslink) polyethylene expansion joint filler.
• Construction: extruded from high quality closed cell polyethylene foam.
• Applications: used in all standard concrete construction, such as floor slabs, driveways, sidewalks, parking garages, highways and runways.
• 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.

Why choose Insul-Joint? It delivers dependable performance by absorbing movement from concrete, reducing the risk of cracks and joint failures across diverse environments. Practical, straightforward, and built to last—the smart choice for both small projects and large-scale deployments.