【Durable EPDM Foam Material】The filler seal strip is crafted from high-quality EPDM foam, offering robust construction with low elasticity that resists deformation under pressure. It delivers exceptional flexibility and longevity, with a broad temperature tolerance range. Resistant to corrosion and abrasion, it remains impervious to water absorption. Providing shock absorption, sound insulation, thermal insulation and impact protection. 【Versatile Crack Application】This foam backer rod is suitable for road cracks, wall joints, foundations, and various other gaps, providing a smooth surface for joint filling projects. The classic black colour resists showing dirt. The black backing strip is stain-resistant and blends seamlessly with most surfaces, ensuring a clean, professional appearance. 【Simple Installation and Cutting】Measuring 6mm (diameter) x 5m (length). The black color of backer rod for gaps and joints accommodates gaps of varying sizes. Operation is exceptionally straightforward: measure the gap length, insert and press the backing strip into place, trim to size with scissors as required, then apply sealant and smooth over. Achieve a smooth, professional seal without specialist skills. 【Versatile Applications】This multi-purpose foam strip is ideal for filling cracks and expansion joints in roads, walls, and concrete. It also excels at sealing gaps in doors, windows, wardrobes, and cabinets, effectively blocking draughts, dust, and noise. Equally suitable for industrial sealing applications in vehicles, vessels, and more. 【Perfectly Adapts to Uneven Surfaces】 The black backer rod conforms seamlessly to irregular or uneven gap surfaces. Its excellent cushioning and vibration-damping properties accommodate minor substrate movement, ensuring a long-lasting, secure seal., Manufacturer: Koprek