Friends ask questions about BW slow expansion type water stop strips, and below I will briefly introduce the characteristics, performance and use of this product. BW slow expansion type water stop strip is a special type of rubber water stop strip, which expands slower than ordinary water stop strip when soaked in water, and has a controllable expansion time.
The marking characteristics of the BW slow-expanding water-stop strip are:
The symbol marked on the drawing is S category code indicating slow expansion type, and BW name code indicates the expansion rubber waterstop strip when exposed to water;
Marking example: BW-S96 stands for Slow Expansion Type Water Stop Strip, with a water absorption expansion rate of 200-250% and a expansion time of 96 hours.
The performance and use of BW slow expansion type waterstop strip are:
The waterstop strip expands slowly when immersed in still water, has strong resistance to water pressure, and is intact and will not crack and fall apart. Its characteristics are that the time required for the expansion of the waterstop strip is controllable to meet the requirements of different projects and regional climatic environments for water-related expansion materials. Because the BW slow-expansion waterstop strip has a controllable time and slow expansion rate when it expands when it encounters water, it is suitable for construction in areas with large water volume in the rainy season, including all kinds of buildings, structures, underground works and water conservancy projects.