15MM X 360M Backing Rod

Material: closed-cell polyethylene foam. Diameter: 15 mm. Length: 360 m. Features: durable, weather-resistant, water- and oil-resistant, temperature-stable, lightweight, and easy to cut to fit any joint.

Measure the joint and cut the backing rod slightly longer than the joint depth. Place the rod into the joint so it sits at the correct depth, compressing slightly to fill the space. Leave a suitable gap above the rod for the sealant, then apply the sealant over the rod to create a proper bond and joint seal.

It’s suitable for a variety of concrete joints in walls, floors, and ceilings. Its closed-cell foam makes it resistant to water, oil, and weather changes, so it performs well in wet or damp environments and under hot or cold conditions.

Yes. The rod is designed to be easily cut with a utility knife or scissors to fit any joint width. For best results, cut slightly longer and trim after placement if needed.

Common uses include sealing expansion joints in concrete walls, floors, and ceilings, joints in foundations, concrete slabs, and areas exposed to weather or moisture where a durable seal backing is required.

Diameter choice depends on joint width. For smaller joints, consider 12mm or 10mm variants; for larger joints, 20mm variants. Each size serves a different joint depth and sealant profile. For reference, see the 12mm and 20mm backing rods on Fepy: https://fepy.com/product/backing-rod-12mm-300m and https://fepy.com/product/backing-rod-20mm-360m.

Closed-cell polyethylene foam offers excellent water and oil resistance, low compression set, and durability in diverse temperatures. It maintains shape under pressure, reduces sealant depth variability, and provides a reliable backing for long-lasting seals.

Yes. Fepy offers multiple backing rod sizes to fit various joint widths, such as 12mm and 20mm variants. See examples here: 12mm variant https://fepy.com/product/backing-rod-12mm-300m and 20mm variant https://fepy.com/product/backing-rod-20mm-360m.

The 15mm x 360m backing rod is designed to be weather-resistant and durable in all-weather conditions. Its closed-cell polyethylene foam resists moisture and temperature fluctuations, helping it maintain integrity over time when used with compatible sealants in outdoor applications.

This backing rod works well with common concrete sealants (e.g., polyurethane, silicone). Ensure the joint depth and rod compression provide a proper backing for the chosen sealant, and follow the sealant manufacturer’s guidelines for surface preparation and application.

Yes. Its long length (360 m) and durable material reduce replacement frequency and maintenance, making it a cost-effective option for large concrete projects requiring reliable joint sealing.