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Por-Rok

Premium gypsum based anchoring cement

POR-ROK® Anchoring Cement is used in the anchoring of heavy machinery, railings, guard rails, banisters, repairing of cracks on damaged concrete substrate. It is a non-shrink, hydraulic, controlled expansion cement in a ready to use preparation. Water is added at the job site to provide a pourable, durable anchoring or patching compound.

POR-ROK® Anchoring Cement has almost unlimited field applications.

  • Easy application for anchoring and patching.
  • Expands as it sets & hardens in 20-30 minutes.
  • Achieves higher strength than concrete within an hour.
  • Contains no alkalinity, preventing rust on metal.
  • Meets ASTM C-1107 standards
Tech Sheet
Safety Sheet

Application

Substrate Preparation

  • Ensure concrete is at least 28 days old and fully cured.
  • Clean the hole thoroughly, removing all particles and debris.
  • Water-scrub sides and bottom, then remove excess water to keep the hole uniformly damp.

Mixing and Application

  • For interior use: Mix 16 oz. of water per 5 pounds of POR-ROK® to achieve a smooth, flowable consistency. Adjust water slightly for a more plastic-like consistency if needed.
  • For exterior use: Apply regular POR-ROK® or Super Por-Rok® in environments with excessive water. Protect against water damage by shaping the material around the anchor to prevent water pooling.

Anchoring

  • Use an appropriate washer and insert the bolt with the head down.
  • After setting, options include topping with a cone of POR-ROK® or sealing with a rated exterior sealer after 7 days to ensure protection.

Application Notes

  • Color: Off White
  • Coverage: 50 lbs covers approximately 0.5 cubic feet.
  • Weight: 110 lbs per cubic foot.
  • Application Temperature Range: 35° – 95°F.
  • Set Time: Measured by ASTM C-191 standards.
  • VOC Content: 0 g/l.

Shelf Life

  • Shelf Life: 12 months. Rotate stock regularly.
  • Storage Conditions: Store in a cool, dry place away from sunlight in tightly sealed packages.

Test Data

  • Compressive Strength:
      • 1 hour: 5000 psi
      • 1 day: 5200 psi
      • 7 days: 6800 psi
      • 28 days: 9000 psi
  • Expansion: Under moist cure, expansion is minimal at 0.15%.