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Five Star Structural Concrete Underwater PG 50lb Bag

Five Star Structural Concrete Underwater Hand Pack Pail

Five Star Structural Concrete Underwater Hand Pack is a rapid strength gain, single component, permanent concrete repair material intended for underwater application by hand or trowel. This concrete repair material allows small volume hand placements with minimal underwater washout.

  • Rapid Set Underwater
  • Saltwater Resistant
  • Corrosion Inhibitor
$87.30
SKU
14517

Five Star Structural Concrete Underwater HP – High-Strength Hand-Applied Concrete Repair

Five Star Structural Concrete Underwater HP is a rapid-strength, hand-applied concrete repair mortar specifically engineered for underwater applications. This high-performance, single-component material is designed for use in tidal zones, marine structures, and submerged concrete repairs, offering minimal underwater washout. With its advanced corrosion inhibitor technology and very low chloride ion permeability, it provides long-term protection for steel reinforcement, ensuring durable and lasting repairs. The mortar can be applied in thicknesses ranging from 1/2 inch (13 mm) to several inches in a single installation.

Key Features:

  • Hand-applied, rapid-strength concrete repair
  • Minimal washout for underwater applications
  • Chloride and sulfate resistant
  • Saltwater-resistant formulation
  • Provides corrosion protection for steel reinforcement
  • Variable application thickness from 1/2 inch to several inches
  • One-component system for ease of use
  • Designed for structural repairs in tidal zones and marine environments

Technical Specifications:

Property Value
Compressive Strength (3 Hours) 3,000 psi (20.7 MPa)
Compressive Strength (1 Day) 4,000 psi (27.6 MPa)
Compressive Strength (7 Days) 5,000 psi (34.5 MPa)
Compressive Strength (28 Days) 5,500 psi (37.9 MPa)
Underwater Bond Strength (ASTM C882, 7 Days) 1,150 psi (7.9 MPa)
Length Change (ASTM C157, 28 Days Wet) +0.02%
Working Time at 70°F (21°C) 10 minutes

Frequently Asked Questions:

What are the typical applications for Five Star Structural Concrete Underwater HP?
This product is designed for underwater repairs, including concrete tanks, hydraulic structures, piers, seawalls, bridge substructures, and marine infrastructure.

What is the recommended thickness for application?
The recommended application thickness ranges from 1/2 inch (13 mm) to several inches in a single placement.

How should the substrate be prepared before application?
All concrete surfaces should be free of marine growth, laitance, and contaminants. The surface should be roughened for optimal bonding and presoaked in tidal zones.

What is the shelf life of Five Star Structural Concrete Underwater HP?
The product has a shelf life of one year in its original unopened packaging when stored in dry conditions. High humidity may reduce shelf life.

For the latest technical specifications and application guidelines, visit Five Star Products.

More Information
BrandFive Star Products