Rubber waterstop ring is a ring-shaped waterproof material made of macromolecule inorganic water-absorbing swelling materials and refined rubber. It is commonly sleeved in the middle of the bolt or strainer and embedded in the cast-in-place concrete wall to achieve great waterproof effects. As it expands when exposed to water and seals the gap, therefore, it is also known as swellable waterstop ring or swellable seal ring.
Physical Properties
Item | Index |
Volume expansion ratio ≥ | 300% |
Flow at high temperature ( 80 °C × 2 h) | No flow |
Low temperature test (-20 °C × 2 h) | No fragile |
Specification
Inner (outer) diameter: 14 (40), 16 (40), 18(40), 20 (45), 25 (50), 30 (60), 35 (60) mm;
Thickness: 10 mm.
Executive standard: GB/T18173.3-2002.
