Premium Closed Cell Polyethylene Foam Backer Rod for Superior Sealing
High-density Ethafoam rod ensures airtight, waterproof seals with excellent compression recovery. Ideal for caulking gaps in concrete, windows, doors, and masonry.
Durable & Weather-Resistant
UV-stable polyethylene foam resists mold, moisture, and extreme temperatures (-60°F to 180°F). Non-absorbent for long-term outdoor/indoor use.
Precision Engineering
Consistent diameter and smooth surface enable seamless caulk adhesion. Split-end design allows easy sizing adjustment.
Cost-Efficient Bulk Solution
Ultra-lightweight, sold in bulk rolls—perfect for contractors, DIYers, and industrial applications. Ships flat to save storage space.
Multi-Purpose Flexibility
Used in construction, HVAC, marine, and automotive industries for expansion joints, insulation backing, and noise reduction.