Insul-Joint Expansion Joint 1 In White is a closed cell (non-crosslink) polyethylene expansion joint filler designed to prevent cracks and breaks during concrete expansion and contraction. It’s the reliable, low-maintenance solution for concrete projects—from floor slabs to runways—that keeps movement in check without the drama.

Key Features & Design

• Size & Color: 1 in white expansion joint filler for standard concrete applications.
• Material: closed cell (non-crosslink) polyethylene expansion joint filler.
• Manufacturing: extruded from high quality closed cell polyethylene foam.
• Functionality: preformed expansion joint filler that accommodates concrete movement to prevent cracks and breaks.
• Applications: floor slabs, driveways, sidewalks, parking garages, highways and runways.
• Durability: moisture-resistant closed cell foam maintains performance over time.
• Technical Specification: ASTM D 4819 Standard Specification for Flexible Cellular Materials Made From Polyolefin Plastics.
• Technical Specification: ASTM D 545 Standard Test Methods for Preformed Expansion Joint Fillers for Concrete Construction (Nonextruding and Resilient Types).
• Technical Specification: ASTM D 3575 Standard Test Methods for Flexible Cellular Materials Made From Olefin Polymers.

Upgrade your concrete projects with Insul-Joint and keep movement smooth—without the crack drama. Order now and seal the deal on durability.