Waterstop strip is a special new type of waterproof product, not only does it have the performance of ordinary rubber products, but also its waterproofing property is better and more reliable than common rubber waterproof products. When it touches water, its volume will swell three or four times than the original volume and it will stuff up all irregular concrete joints, then achieve to stop leak thoroughly.
|Expansion Rate %||150||220||300|
|Flow at high temperature(80℃×5h)||No flow|
|Low-temperature test(-20℃×2h)||No embrittlement|
|Different Size||20*30mm, 20*25mm, 15*20mm, 10*20mm|
|Hardness (Shore A)||42±7||45±7||48±7|
|Elongation at break/%≥||450||350|
|The expansion rate in volume/%||150||250||400||600|
|Repeated water immersion test||Tensile strength/Mpa≥||3||2|
|Elongation at break/%≥||350||250|
|The expansion rate in volume/%≥||150||250||300||500|
|Low-temperature bending(-20°C*2h)||No crack|
Waterstop strips can be widely applied to various types of concrete structures, such as dams, reservoirs, subways, culverts, tunnels, and other underground works.