10×20mm Waterproof Center Bulb EPDM Rubber Water Stop for Concrete Joint

Product Description

Product Description

Rubber Waterstops - SBR, Neoprene Or Natural Rubber

    , made of quality SBR (styrene butadiene rubber), neoprene rubber or natural rubber, is one of the widest types for concrete structure to prevent liquid leaking in or out. Generally, designed to be cast in the concrete, rubber waterstops are ideal for applications where high physical properties of rubber are required. For example, reservoirs, dams and other water retaining or excluding applications with high movements or water pressure.

Features & benefits

*High elasticity. 

*High elongation.

*Excellent high movement accommodation.

*Capable to withstand high hydrostatic head.

*Adjust for subsidence and seismic movements.

*Hot vulcanized site joints.

Specification

Physical properties parameter of Waterstop band:
no	Items				index
					B	S	J
1	Rigidity, Shore A				60±5	60±5	60±5
2	Tensile strength ,M Pa                            ≥				15	12	10
3	Snap and elongation,%                ≥				380	380	300
4	transmutation		70ºC×24h,%        ≤		35	35	35
			23ºC×168h,%          ≤		20	20	20
5	Tear strength 21 ,KN/m                                ≥				30	25	25
6	Brittleness temperature,ºC                                  ≤				-45	-40	-40
7	Air aging 31	70ºC×168h		Rigidity, HA      ≤	8	8	--
				Tensile strength,MPa          ≥	12	10
				Snap and elongation,%          ≥	300	300
		100ºC×168h		Rigidity, HA      ≤	--	--	8
				Tensile strength,MPa          ≥			9
				Snap and elongation,%          ≥			250
8	Ozone aging 50pphm: 20%,  48h				2grade	2 grade	0 grade
9	Rubber and metal bonding				In vivo sections flexibility
remark: 1.Rubber and metal bonded items apply only to the edge of water stop which include steel. 2.If there is other special needs,we can discuss.

Installation

Product Details

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: How are sections joined on site? 
A: Heat splicing vulcanizes the joint into the parent material -- a proper splice is stronger than the surrounding rubber.

Q2: What temperature range does it tolerate? 
A: Normal service range is -20°C to +70°C, with no cracking in the low-temperature flexibility test.

Q3: Is it suitable for outdoor service? 
A: Yes -- NR resists weathering and EPDM adds ozone resistance; both suit exposed concrete joints.

Q4: How is the belt fixed before pouring? 
A: Tie it to the reinforcement steel through the wing holes or rely on the embedded wings -- the profile stays centered at the joint line.

Q5: What should be watched during concrete pouring? 
A: Full compaction around both wings -- voids beside the profile are the most common cause of leakage.

Q6: Can custom cross-sections be supplied? 
A: Yes -- dumbbell, center bulb, P-type, and custom profiles per drawing, in NR or EPDM.