PVC WATER STOP is extruded from an elastomeric plastic compound based on P.V.C
CRD C 572
Orange flexible plastic
1.3 ± 0.02
Specific Gravity (kg/lit)
70 ± 5
Shore A (hardness)
ASTM C 412
ASTM D 412
CRD – C 573
ASTM D 570
746 No failure
Weight change 0.1% to +0.25%
Hardness change ± 3%
Tensile change 15%(Max)
P.V.C WATERSTOP is produced in different shapes and sizes and is used in concrete construction to prevent the passage of water through expansion or construction joints.
Swimming pools and reservoirs
Water tower dams, Tunnels, canals
Water and sewage treatment plants
High flexibility at low temperatures
Exceptional resistance to water, UV-Rays, seawater, alkali and chlorine
High tensile strength
Many different types and sizes
The waterstop is selected according to the Type of joint, thickness of concrete, the movement of joint and water pressure.
Generally the thickness of the concrete should be greater than or equal to the width of the waterstop profile. In addition the width of the waterstop be at least 6 times greater than the largest size of the aggregates.
Types of Waterstop
Type of water stop and joint
Ribbed type water stop:
Used in construction joints where little or no movement is expected and the ribs provide better watertight sealing
Ribbed type with center bulb:
It is used in expansion, contra ion and construction joints, particularly where a large amount of movement is expected. The ribs provide better watertight sealing
Surface sealing strip for construction joints:
It is embedded with its external surface flush with the surface of the concrete element
Surface sealing strip for expansion joints
Preparation and Placing
The surface of the waterstop must be clean and oil free to have Maximum bonding to concrete
Use hog rings crimped between the last two ribs and wire tie the waterstop to the reinforcing steel.
Install in the center of the joint, with half of the width embedded in the concrete on each side of the joint.
In expansion joint, take care during the concrete placement to keep the center bulb unembedded and in the center of the joint.
It is made of thermoplastic P.V.C therefore can be welded by use of welding blade, the waterstop can be heated (200°c- 250°c) until the material gets plastic, and then pressed together
Other product info
E17, 19, 24, 25, and 30 is supplied in 25m rolls and O24, 30, E32, EF30, OF30 is supplied in 20m rolls.
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Office Address: No. 242, First floor, Mirdamad Blvd, Tehran, Iran
Contact Number: +98-21-27427
Factory address: East third and second, Simin Dasht Industrial Town, Shahriar Road, Karaj, Iran.
Contact number: +98-26-36670012-3-4
The company has been operating since 1972 under the management of Massoud Honarmand. Shimisakhteman holds a production license from the Ministry of Industry, Mining and Trade and has a mandatory standard certification of 2930. We have been selected as a standard sample unit every year since the 90’s.