Long-Term Stable and Waterproof Anti-Aging Steel Edge Rubber Water Stop Belt

Product Description

Product Description

The is a composite waterproofing material made of high-quality rubber and galvanized steel edges, specifically designed for construction joints and deformation joints in concrete structures. With the high elasticity of the rubber part and the rigid support of the steel edge, the effectively prevents water infiltration and adapts to the expansion and contraction of concrete structures. It is widely used in underground projects, tunnels, subways, dams, and other critical areas. During concrete pouring, the bonds tightly with the concrete, forming a reliable waterproof barrier to ensure long-term dryness and structural safety.

The features a non-uniform thickness design, divided into strong and waterproof zones, ensuring balanced stress distribution across the product. The steel edges are equipped with installation holes for easy fixation with reinforcing bars, preventing displacement or deformation during concrete placement. The rubber part is made of high-performance materials such as natural rubber or EPDM, offering excellent elasticity, aging resistance, and acid-alkali resistance, ensuring long-lasting waterproof performance. The steel edge waterstop can be customized in width, thickness, and rubber material to meet the waterproofing needs of various complex structures.

Steel Edge Waterstop Advantages
    *Superior Waterproofing Performance: Effectively extends water seepage path and blocks water infiltration with remarkable sealing results.
    *Strong Deformation Adaptability: Rubber part deforms with structural movement, maintaining waterproof continuity—ideal for settlement and expansion joints.
    *Long Service Life: Highly durable materials resist aging and corrosion, reducing maintenance and replacement costs.
    *High Load-Bearing Capacity: Steel edge structure enhances overall strength, capable of withstanding high water pressure and mechanical stress.

Feature

Composite Structure Design: Combines steel edge and rubber, offering both flexibility and strength, with strong adaptability to structural deformation.

High-Strength Steel Edge: Galvanized steel edge enhances overall rigidity, preventing deformation or displacement during construction.

Aging and Corrosion Resistance: Rubber materials offer superior weather and chemical resistance, suitable for harsh environments.

Specification

Physical properties		B standard	C standard
Hardness shore A		60 ± 5	60 ± 5
Tensile strength		2175 psi (min)	1740 psi (min)
Ultimate elongation		380% (min)	380% (min)
Permanent compression set 24 hours at 70°C		35% (max)	35% (max)
Permanent compression set 168 hours at 23°C		20% (max)	20% (max)
Brittle temperature		-45°C (max)	-45°C (max)
Tear strength		30 kN/m (min)	25 kN/m (min)
Galvanized steel plate and rubber adhesive (Mpa) R type damage		6 (min)	6 (min)
Ozone aging, 50 PPMM, 20%, 48 hours		2 level	2 level
Hot-air aging	Hardness changes (shore A)	8 (max)	8 (max)
	Tensile strength	12 (min)	12 (min)
	Elongation at break	300% (min)	300% (min)

Detailed picture

Packaging & Shipping

Company Profile

Hengshui Jingtong Rubber Co., Ltd., located in Hebei Province's Hengshui City, is a professional manufacturer of engineering rubber products. Our product range includes bridge bearings, expansion joints, water stop strips, water stop belts, inflatable cores, building deformation joint device and water plugs, which are widely used in bridge, tunnel, water conservancy, and power engineering projects. The company boasts advanced technology and mature processes to ensure reliable product quality.

We have a professional technical team and a comprehensive after-sales service system to ensure customers receive high-cost-performance products and attentive service. Hengshui Jingtong Rubber Co., Ltd. is committed to continuous innovation to meet market demands and looks forward to esta  blishing long-term cooperative relationships with customers from both domestic and international markets.

FAQ

 Q1: What is a steel edge rubber waterstop?
A: It is a rubber waterstop bonded to galvanised steel edge bands and cast into a concrete joint.

Q2: Why use a steel edge instead of a plain rubber waterstop?
A: The steel band anchors the strip mechanically, which suits joints under greater water head.

Q3: Which standard applies?
A: GB/T 18173.2-2014, which expressly covers steel-edge composite waterstops.

Q4: How is the size written?
A: As width * central rubber thickness -- for example 300 * 10 means 300 mm wide with a 10 mm rubber body.

Q5: How are lengths joined?
A: Steel edges are butt-welded, and rubber joints are vulcanised on site.

Q6: What installation forms are available?
A: Embedded (centre), external, and back-stick forms.

Q7: Where is it used?
A: Tunnels, subways, dams, basements, culverts, water tanks, and retaining walls.

Q8: Can the width and edge be customized?
A: Yes -- width, central rubber thickness, and steel edge specification are made to the drawing.