

STANDARD BACKER ROD
Standard Backer Rod is a non-absorbent, compressible backup material designed to facilitate sealant application and enhance joint performance. It controls sealant depth, creates a reliable backstop for proper tooling, ensures adequate sealant contact with joint surfaces, and promotes a proper bond between the sealant and back-up material. It can also function as a temporary joint seal.
APPLICATIONS
- Glazing operations
- Window and door installations
- Expansion joints
- Curtain wall joints
- Partitions
- Log construction
- Pavement joints
FEATURES
- Material: Extruded, round, closed-cell, low-density polyethylene foam with a skin-like outer texture
- Flexibility: Highly flexible and compressible for easy installation
- Compatibility: Works with most cold sealants, including butyl, polysulfide, acrylic, polyurethane, and silicone
MATERIAL CONFORMANCE
- ASTM D1622
- ASTM D1621
- ASTM C5090
- ASTM C335
DIMENSIONS
- Available in diameters ranging from 1/4" to 6". Contact sales for pricing and availability for sizes larger than 1".
SIZES AND PRODUCT PACKAGING
Diameter | Linear Feet/Box |
1/4" | 4,000' |
3/8" | 2,100' |
1/2" | 2,500' |
5/8" | 1,550' |
3/4" | 1,100' |
7/8" | 850' |
1" | 600' |
1.25" | 400' |
1.5" | 420' |
2" | 252' |
2.5" | 162' |
3" | 102' |
4" | 54' |
5" | 90' |
6" | 60' |
RESOURCES

PRICE MATCH GUARANTEE
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