Backing Rod sponge 20mm X 50m 4 Pcs (200Lm/Bag)- 100% brand new and high quality.- 4pcs/lot.- Size: 20mm x 50m.- Material: sponge.- Color: white.- 100% brand new and high quality.- 4pcs/lot.- Size: 20mm x 50m.
Terms and Conditions - Prices excluding delivery costs. - The above price may vary depending on the availability of raw material price, delivery and minimum order quantity.
An extruded closed cell polyethylene backing rod designed for filling static and dynamic joints with varying degrees of expansion. White color
• Extremely pliable and compressible. • No bond to most sealants and easy to apply. • Easy to install. • Different rod diameters. • Good water & temperature resistance. • Suitable for use with cold-applied sealants Such as: Silicone, Polyurethane, Polysulphide, Acrylic, Bitumen, etc. • Unlimited shelf life.
Backing Rod acts as a backup material for joint sealants, providing the sealant with the proper thickness. It also as a bond breaker, preventing mastic sealant from bonding to it (avoiding three-sided adhesion), allowing for the most efficient joint movement and design.
Backing Rod should be fixed with a blunt tool. Precautions should be taken to avoid cutting or puncturing the surface skin. Avoid excessive longitudinal stretching of the rod when installing. The rod diameter should be approximately 25% larger than the joint width.
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