High-density closed-cell polyethylene foam for superior durability and compression resistance

Pre-cut rope design ensures easy installation and seamless caulking application

Weatherproof and moisture-resistant material ideal for both indoor and outdoor sealing projects

Prevents air/water infiltration while accommodating structural movement in joints and gaps

Professional-grade backer rod for window/door frames, concrete expansion joints, and masonry repairs

Non-absorbent structure resists mold/mildew growth for long-term performance

Flexible yet firm texture allows clean tooling and smooth finish with sealants

Cost-effective bulk solution for contractors and large-scale construction projects

Universal 5/16" diameter suits most standard caulking applications

Global wholesale pricing with factory-direct quality and volume discounts