Description This backing rod is made from open cell polyurethane foam for compressibility and flexibility. It is available in multiple diameters to suit various gap sizes. Features: Compatible with both silicone and polyurethane sealants Easily control the depth and volume of sealant used in joints Available in multiple sizes to suit almost any construction joint Open cell backing rod – quick reference Code Size Specs Qty OCBR0010 10mm x 200m Open Cell 1 OCBR0015 15mm x 150m Open Cell 1 OCBR0020 20mm x 100m Open Cell 1 OCBR0025 25mm x 80m Open Cell 1 OCBR0030 30mm x 60m Open Cell 1 OCBR0040 40mm x 30m Open Cell 1 OCBR0050 50mm x 20m Open Cell 1 Backing rod is sometimes referred to as backer rod.
