Butyl Steel Plate Waterstop Manufacturer and Supplier in Shenzhou City, Hengshui – Specifications, Installation and Selection Guide

发布于 2026-10-14

Hengshui Zhanhe Engineering Rubber Co., Ltd. supplies butyl steel plate waterstop and related engineering rubber products to contractors, distributors and infrastructure projects worldwide. A galvanised steel core with butyl mastic laminated on both faces, sealing the steel itself as well as the weak steel to concrete interface.

This article explains the working principle, main types, typical applications, installation points, selection criteria, standards and frequently asked questions about butyl steel plate waterstop, and is intended for engineers, purchasers and project managers.

1. What Is Butyl Steel Plate Waterstop?

A galvanised steel core with butyl mastic laminated on both faces, sealing the steel itself as well as the weak steel to concrete interface.

Working principle: The product works through elastic deformation and mechanical interlock to provide reliable sealing or load transfer.

2. Main Types

• Standard butyl steel plate waterstop for general basement construction joints
• Water swelling butyl grade containing hydrophilic expansion components
• Reinforced mesh grade with better tear and sag resistance for wall joints
• Custom width grade made to suit member thickness and required seepage path

3. Typical Applications

• Horizontal and vertical construction joints in basement slabs and walls
• Joints between metro station structures and annexes such as vent shafts
• Wall construction joints and pour strips in clear water and aeration tanks
• Utility tunnel joints combined with an embedded rubber waterstop

4. Installation and Construction Points

1. Check total width, steel thickness and mastic continuity on delivery and reject damaged release film
2. Store indoors off the ground, dry and shaded to prevent surface skinning
3. Cut to length in advance and keep laps away from corners and stress concentrations
4. Centre the strip on the joint with mastic facing the concrete to be placed and fix it with steel clips
5. Weld laps of not less than 50 mm with wet cloth shielding the mastic, then patch the joint with mastic strip
6. Strip the release film only after formwork acceptance and place concrete symmetrically

5. Selection Guide

• Confirm the design displacement, load grade and service environment before ordering.
• Select material grade according to temperature range, medium and durability requirements.
• Provide drawings or a specification list so that the manufacturer can verify sizes.

6. Standards and Quality Control

Butyl Steel Plate Waterstop is manufactured and inspected according to applicable national and industry standards. Hengshui Zhanhe Engineering Rubber Co., Ltd. carries out batch inspection before delivery, and inspection certificates together with third-party test reports (where required by the project) can be provided.

Typical standards applied to this product family include Chinese national and transportation industry standards; equivalent international standards can be referenced upon request.

7. FAQ

Q: Will welding damage the mastic?

A: It can, so shield both faces near the weld with wet cloth or sheet metal. After cooling remove slag and press a fresh strip of mastic over the joint so the sealing line stays continuous.

Q: Can the swelling grade expand before the concrete is even placed?

A: Yes. Standing water in the excavation, rain or curing water can consume part of the expansion reserve. Keep the material covered, dewater the joint before placing and backfill promptly.

Q: Why does it cost more than plain steel plate?

A: The butyl polymer and tackifying resin cost more than bituminous compounds, and the line adds degreasing and roll laminating steps. Converted to a metre rate the increase is modest. Typical 300 mm standard grade sells at 30 to 60 CNY per metre.

Q: What if the joint leaks later?

A: Grouting from the inside with polyurethane foam or epoxy resin is the usual remedy, sometimes with an added replaceable internal waterstop. Repair almost always costs more than getting the concealed work accepted properly in the first place.

8. Price Factors

The metre price breaks down into steel tonnage converted at the selected width and thickness, the butyl mastic which is dearer than bituminous compounds and dearer again when it contains swelling agents, roll laminating and cutting labour, and three to five percent site waste at laps and corners. Standard 300 mm wide material is generally quoted between 30 and 60 CNY per metre.

Packing: standard export packing (woven bags, pallets or wooden cases). Delivery terms: EXW, FOB, CFR, CIF or DAP as agreed. Payment terms: T/T, L/C or other terms subject to negotiation.

9. Why Work With Hengshui Zhanhe Engineering Rubber Co., Ltd.

• Manufacturer based in Hengshui, Hebei — the engineering rubber industry cluster in North China, with in-house production and inspection.
• OEM and ODM supported: sizes, hardness, profiles and packaging can be customized to project or market requirements.
• Batch inspection before shipment; certificates of conformity and third-party test reports available when required.
• Technical support for selection, shop drawings and installation guidance, with export packing and worldwide logistics arrangement.

10. Contact and Quotation

For specification sheets, samples, pricing or project support, please contact Hengshui Zhanhe Engineering Rubber Co., Ltd.. Email: 150051331@qq.com · Tel/WhatsApp: +86-13833886677 · Factory: No.168, Zhangtuantuo Village, Dengzhuang Town, Taocheng District, Hengshui, Hebei, China. We reply to export enquiries within 24 hours on working days.