Assorted Size Foam Backer Rod – 6 Pack | 1.5”, 2”, and 2.5” Diameters | 35” Length

Tackle a variety of sealing and filling projects with this 6-pack of assorted-size foam backer rods. Featuring three different diameters, this convenient assortment provides flexibility for filling gaps, expansion joints, cracks, and openings of varying widths.

What’s Included:

• 2 × 1.5” Diameter Backer Rods
• 2 × 2” Diameter Backer Rods
• 2 × 2.5” Diameter Backer Rods
• All rods measure 35 inches in length.

Durable Closed-Cell Polyethylene Foam: Made from resilient, lightweight, closed-cell polyethylene foam that resists moisture absorption and provides reliable performance in indoor and outdoor applications.

Ideal for Caulking & Sealing Projects: Designed to fill deep gaps and joints before applying caulk or sealant, helping control sealant depth, reduce material waste, and support proper joint sealing.

Flexible & Easy to Customize: The foam rods are easy to cut to the desired length and compress to fit a variety of spaces, making them suitable for construction, home improvement, concrete expansion joints, and general gap-filling applications.

Convenient Multi-Size Pack: With three popular diameters in one package, you’ll have the flexibility to tackle multiple projects without purchasing individual sizes separately.

Closed-Cell Polyethylene Foam
Meets SATM C1330 Type C
Made without CFC’s or HCFC’s

COMPOSITION AND MATERIALS
Backer Rod is a round, black, resilient, extruded closed cell polyethylene backer rod with a water-resistant outer skin. It is compatible with most known cold applied sealants such as urethane, silicone, acrylic, butyl, polysulfides, latex, and chinking sealants.

LIMITATIONS

Closed-Cell Foam Backer Rod should be installed with a roller or blunt, flat-sided tool. Please follow sealant manufacturer specifications for recommended sealant width and depth ratio. For best results, do not puncture, fold or overly stretch the product. The product is made with a water-resistant outer skin, therefore where moisture resistance is important, care should be taken not to puncture this outer surface skin.