EPDM Expansion Joint Strip for Precast Concrete Panels – Flexible Rubber Spacer for Modular Projects

This EPDM expansion joint strip is ideal for modular and precast concrete construction. It allows controlled movement between elements while maintaining waterproof sealing and joint integrity.

Features

High flexibility and rebound rate

Excellent aging and UV resistance

Low water absorption

Smooth surface for easy bonding

Technical Specifications

Material: EPDM

Width: 10–250 mm

Thickness: 3–20 mm

Hardness: Shore A 60 ±3

Water Absorption: ≤ 1%

Tensile Strength: ≥ 10 MPa

Applications

Precast concrete wall and slab systems

Architectural cladding joint gaps

Modular building joints

Floor-to-wall transitions

Customization Options

Available in coils or sheets

Custom extruded shapes

Optional surface grooving

Private label printing

Shenzhen Xunzhi Building Materials Industrial Co., Ltd. is an integrated enterprise specializing in design, production, and sales, with many years of experience in manufacturing and technical product development. The company has two subsidiaries: Hong Kong Ruisong Technology Co., Ltd. and Sanya Ruisong Technology Co., Ltd. It is a professional manufacturer of door and window seals, curtain wall seals, and vehicle door sealing strips, providing one-stop rubber sealing solutions to global customers for many years.

We specialize in the production and processing of various sealing and molding products, including PVC (Polyvinyl Chloride), EPDM (Ethylene Propylene Diene Monomer), high-grade thermoplastic rubber (Santoprene), silicone rubber, dual-hardness sealing strips, rigid decorative strips, EVA single- and double-sided adhesive products for doors, windows, and curtain walls, as well as molded parts and plastic-rubber injection components.

The company is equipped with a strict quality assurance system, comprehensive testing procedures, and excellent after-sales service. Our products are highly recognized and praised by industry professionals, and are exported to Europe, America, Southeast Asia, and Hong Kong and Macao regions.