Product Details

Hydrophilic or "water-loving" waterstops are strips of rubber, modified with a hydrophilic agent (such as bentonite) so they swell in the presence of moisture to effectively seal concrete construction joints. Hydrophilic strip applied waterstops should not be used in contraction or expansion joints per the instructions of most commercial manufacturers. Hydrophilic waterstops can only be effective if they are allowed to swell; therefore, water must be present to activate the hydrophilic agent. Initial leaking is possible until the waterstop expands to seal the joint.

Our waterstop has two types, PZ type and Pn(BW) type. Clients can choose according to your project requires.

Difference between PZ Type and BW Type

1.The performance of PZ Type is better than BW Type
2.PZ Type is a kind of vulcanized rubber, but BW isnot.
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.

Specifications:

10*25,10*30,10*40,20*30,15*20,Dia20,Dia30, R15*R10,

Other size please contact with us.

Physical Parameter:
BW type

Item	Index
	BW-150	BW-220	BW-300
Expansion Rate %	150	220	300
Flow at high temperature(80ºC×5h)	No flow
Low temperature test(-20ºC×2h)	No embrittlement

PZ type

Item		Index
		PZ-150	PZ-250	PZ-400	PZ-600
Hardness (Shore A)		42±7		45±7	48±7
Tensile strength/Mpa≥		3.5		3
Elongation at break/%≥		450		350
Expansion rate in volume/%		150	250	400	600
Repeated water immersion test	Tensile strength/Mpa≥	3		2
	Elongation at break/%≥	350		250
	Expansion rate in volume/%≥	150	250	300	500
Low temperature bending(-20°C*2h)		No crack