Gold Member Since 2011
Audited Supplier
Zaoqiang Dacheng Rubber Co., Ltd.

Swelling Waterstop Strip, Bentonite Waterstop Bar, Waterstop Bar manufacturer / supplier in China, offering Widely Used Bentonite Waterstop Bar for Concrete Joint, Inflatable Rubber Stopper/Rubber Pipe Plugs for Closing Pipeline, Economic and Durable Air Inflatable Rubber Dam for Irrigation and so on.

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Supplier Homepage Product waterproofing materials swellable bar Widely Used Bentonite Waterstop Bar for Concrete Joint

Widely Used Bentonite Waterstop Bar for Concrete Joint

FOB Price: US $0.9-2.6 / Meter
Min. Order: 1,000 Meters
Min. Order FOB Price
1,000 Meters US $0.9-2.6/ Meter
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Port: Tianjin, China
Production Capacity: 50, 000 Meters/Month
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: PZ & BW
  • Ceiling Tile Shape: Strip
  • Thickness: 10mm, 20mm, 25mm, 30mm
  • Certification: ISO
  • Usage: Construction & Building
  • Origin: Hengshui
  • Type: Waterproof Roll Material
  • Material: Rubber
  • Function: Waterproof
  • Color: Black, Red, Blue
  • Transport Package: Carton with Pallet or as Customer′s Requirements
  • HS Code: 4008210000
Product Description
Contact person: Grady Wang
TEL: +86-13253291538

Brief Introduction

Waterstop strip is a special new type waterproof products, not only it has performance of ordinary rubber products, but also its waterproofing property is better and more reliable than common rubber waterproof products. When it touch with water, its volume will swell three or four times than original volume and it will stuff up all irregular concrete joint, then achieve to stop leak thoroughly.


It can be divided into BW type and PZ Type. Any client can select it according to different demand of water-proof construction. 
PZ TypeBW Type
Widely Used Bentonite Waterstop Bar for Concrete JointWidely Used Bentonite Waterstop Bar for Concrete Joint

Difference in PZ Type and BW Type
1.The performance of PZ Type is better than BW Type
2.PZ Type is vulcanized rubber, instead, vulcanized process isn't necessary for BW type
3.Almost all BW type is back in market, but PZ Type can be produced in different color, such as black, red, blue and so on (red and blue are more popular in market)

BW Type
Expansion Rate %150220300
Flow at high temperature(80ºC×5h)No flow
Low temperature test(-20ºC×2h)No embrittlement
PZ Type
Hardness (Shore A)42±745±748±7
Tensile strength/Mpa≥3.53
Elongation at break/%≥450350
Expansion rate in volume/%150250400600
Repeated water
immersion test
Tensile strength/Mpa≥32
Elongation at break/%≥350250
Expansion rate in volume/%≥150250300500
Low temperature bending(-20°C*2h)No crack

Testing Result
Widely Used Bentonite Waterstop Bar for Concrete JointWidely Used Bentonite Waterstop Bar for Concrete Joint
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Mr. Grady Wang
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