Water Swellable Bar Waterproofing Materials (Made in China)
Model No.: 20*30mm, 25*30mm
Sales Manager: Ms Jenny Lee
Mobile Phone: +86-18678456530
Companies: Zaoqiang Dacheng Rubber Co.,Ltd.
Introduction of HDPE waterstop
HDPE waterstop, also a kind of plastic waterstop similar to PVC waterstop, are made of quality high
density polyethylene materials with high chemical resistance when exposed to hydrocarbons, acids,
hot petroleum oils, solvents and diesel fuels,etc. However, the HDPE waterstop is harder, more abrasion
and heat resistant than PVC waterstops.Bentonite waterstop are recommended for sealing high
movement expansion joints. They are particularly recommended for sealing joints subject to high water
pressures in such structure as irrigation canals, culverts,reservoir, sea walls and sewage works.
Types of waterstop
1. Common Rubber Water stop
2. Swellable Rubber Water stops/Hydrophilic Rubber Water stop belt
3. Rubber Water stop with Steel Side
Advantages of HDPE waterstop
1. Strong and durable.
2. High resistance to elevate and low temperature.
3. Excellent anti-abrasion.
4.Superior resistance to chemical liquids, hydrocarbons, acids, solvents, oils,fuels, and other non-polar
5.Resistant to oxidants and reducing agents.
6.Not prone to swell and be flexible.
7.Easy to butt-weld to form a continuous diaphragm.
Classification of HDPE waterstop
According to shape it can be divided into "rubber putty type (BW type)"and "rubber product type(PZ type) "
( unvalcaization and vulcanization). We can select according to different demand of water-proof
Application of HDPE waterstop
Perfect for primary and secondary containment structure.
Sewage treatment facilities.
Mining and refineries facilities.
Technology index of HDPE waterstop
|1. Hardness ( Shore A )||60±5||60±5||60±5|
|2.Tensile strength ,MPa ≥||15||12||10|
|3.Elongation at break , % ≥||380||380||300|
|4.Compression set %||70ºC×24h,% ≤||35||35||35|
|5.Tear strength,KN/m ≥||30||25||25|
|6.Brittleness temperature,°C ≤||-45||-40||-40|
|7.Air aging||70ºC× |
|Hardness ( Shore A ) ≤||8||8||--|
|Tensile strength,MPa ≥||12||10|
|Elongation at break , % ≥||300||300|
|Hardness ( Shore A ) ≤||--||--||8|
|Tensile strength, MPa ≥||9|
|Elongation at break , % ≥||250|
|8. Resistance ozone ageing |
50pphm: 20%, 48h
|2 grade||2 grade||0 grade|
|9. Adhesion of rubber to metal||With contact section in |
Installation of HDPE waterstop
In conjunction with brass eyelets, punched flanges or hog rings, tie wires to surrounding reinforcing bars
to prevent the waterstop from displacing during the concrete pour. For changing directions, pre-fabricated
waterstops are recommended.
Storage of HDPE waterstop
· In transport and storage, should not impact and damage the packing,
· Not weigh,Placed in ventilated and dry indoors,
· Kept away from direct sunlight,
· Prohibit contacting acid, alkalis, oil, organic solvent etc.,
· Insulated from heat resource,
· Shelf time: 12 month
· Package:5m or 6m in a roll,5 rolls in a carton.
Not recommended for applications in oxidizing acid circumstances, for example,nitric, chloro sulfonic
and fuming sulfuric, etc.
Polyethylene will dissolve at high temperature in hydrocarbons and halogenated hydrocarbons such as
toluene, xylene, or chlorinated solvents.
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