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Repair & strengthening

HP-4 Epoxy Injection Resin

HP-4 Epoxy Injection Resin is a Sino-sina engineering material developed for injection, impregnation or sealing of cracks and internal voids in concrete.

Review application and selection guidance
SINO-SINAHP-4 Epoxy Injection ResinVerified product main image pending
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Product overview

Specified around the application.

HP-4 Epoxy Injection Resin is a Sino-sina engineering material developed for injection, impregnation or sealing of cracks and internal voids in concrete.

Product selection should consider crack width, moisture condition, viscosity, working time, injection pressure and structural intent. The installation method and acceptance criteria must be confirmed against the current technical data sheet and project specification.

Typical applications

Where this material is considered.

  • Fine and medium concrete crack injection
  • Structural void and honeycomb filling
  • Dry or damp crack repair by approved grade
  • Bridge, tunnel and industrial concrete repair

System benefits

What the product route is designed to provide.

  • Low-viscosity penetration route
  • High bond to prepared concrete
  • Two-component controlled curing
  • Suitable for pressure-injection repair planning

Selection & specification

Checks required before approval.

Technical values are not estimated on this page. Use only the current approved technical data sheet, test report and project specification for product acceptance.

01Use only the verified mix ratio
02Confirm viscosity and workable time
03Check dry/wet bond requirements
04Approve ports, pressure and injection sequence

Technical enquiry

Request the current technical data for HP-4 Epoxy Injection Resin.

Include foundation type, grout geometry and volume, strength ages, flow requirement, temperature, standards, placement distance and equipment.