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KM Polyurethane Backer Rod – Open Cell
KM Open Cell Backer Rod is manufactured from open cell medium density polyurethane foam. The product is manufactured in a range of sizes and has excellent compression and recovery properties which is ideal as a backup material. It is inserted into a joint to control depth to create a backstop to allow proper sealant tooling, eliminate sealant bubbling, minimize the amount of sealant required, yield a proper bond breaker between the backer rod and sealant, and is compatible with most sealants.
| Material: | Open cell medium density polyurethane foam |
| Density: | 27 kg/m³ |
| Service Temperature: | -40°C to +70°C |
| Tensile Strength: | 85 kPa |
| Compression Set: | 90% |
| Resilience: | 40% |
| Tear Resistance: | 250 N/m |
| Installation Sizing: | Rod diameter should be 25% wider than joint width |
| Origin: | Manufactured in Australia |
| Features: | Excellent compression & recovery, eliminates sealant bubbling, minimizes sealant usage |
Applications:
Glazing installations, window and door applications, expansion joints, curtain wall joints, log construction, pavement joints, repairs, precast and copings, joint depth control for proper sealant installation
