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Product Information
Technical Datasheet

Description :

A zinc alloy unit with an integral titanium connecting wire, used in conjunction with a specially formulated backfill mortar. PatchGuard is a proven, effective method of adopting BS EN1504 Part 9 Principle 10 (cathodic protection by applying an electrical potential). When installed into concrete structures, and connected to the reinforcing steel, the unit will act as a sacrificial anode and prevent rebar corrosion within its sphere of influence. When installed into drilled holes around the perimeter of patch repairs, PatchGuard units will prevent incipient anode induced corrosion, a common cause of premature patch repair failure described in BRE Digest 444 Pt 3. PatchGuard units are uniquely located within the parent concrete surrounding the patch repair rather than embedded in the repair mortar. This results in enhanced current distribution to the areas of steel at greatest risk of corrosion and also permits the use of bonding primers and high resistivity mortars within the patch repair.

Advantages :

  • Compact size
  • Quick and easy to install
  • Corrosion resistant attachment system
  • Extends the life of patch repairs
  • Tough and resistant to damage on site
  • Suitable for carbonated and chloride contaminated structures
  • No restriction on use of bonding primers or high resistivity repair mortars
  • No bridging mortar required
  • No need to pre-soak anodes
    Pre-mixed embedding mortar in handy cartridges
    Measurable performance
    Up to 20 year service life*