SpecPlug

SpecPlug

SpecPlug is a fast-setting hydraulic cement mortar designed to instantly stop water flow through holes and cracks in concrete and masonry. It expands as it sets without shrinking or oxidizing, ensuring a durable repair.

  • Single-component, easy to use by just adding water.
  • Expands to form a strong, watertight bond to the substrate.
  • Sets in approximately 3-5 minutes, rapidly stopping flowing water.
  • Suitable for both vertical and underwater applications.
  • Certified to NSF/ANSI Standard 61 for safe contact with potable water.
  • Available in a faster-setting formula, Super SpecPlug

Coverage

  • Yield
    • One 50 lb (22.7 kg) pail yields approximately 0.43 cubic feet
    • One pound (0.45 kg) will fill 15.6 cubic inches

Packaging

  • 10 lb (4.5 kg) pail and 50 lb (22.7 kg) pails
  • 36-50 lb pails per pallet

Shelf Life

18 months when properly stored in unopened containers in a clean, dry area between 45°F and 90°F (7°C and 32° C).

 

Recommended Uses: SpecPlug is suitable for:

  • Basement and masonry cracks
  • Floor and wall joints
  • Manholes and sewer pipes
  • Tunnels and swimming pools
  • Below-grade foundations

Surface Preparation

  • Enlarging Cracks: For best results, enlarge the crack to at least 3/4″ in width and depth, ensuring a square or undercut shape.
  • Cleaning: Remove all grease, wax, oil, contaminants, curing compounds, and any weak, contaminated, or deteriorated concrete from the substrate.
  • Wetting Surface: Saturate the repair area with water. SpecPlug can cure in the presence of running water, making it ideal for active leaks.

Mixing and Application

  • Mixing SpecPlug:
    • Create a putty-like consistency by adding a small amount of clean water to SpecPlug. Aim for a 20%-21% water-to-product ratio by weight.
    • Mix only enough material that can be placed within 2 minutes.
  • Application Procedure:
    • For vertical and moving-water applications, hold the mixed SpecPlug firmly in place until it sets, typically within about 3 minutes.
    • Adjust water temperature to manage the setting time: use hot water and warm material in cold conditions, and cold water in hot conditions.

Curing

  • Curing: Keep SpecPlug damp for at least 30 minutes to support curing. Optimal strength is achieved through wet curing for up to 2 days.

Compressive Strength (ASTM C109)
1 hour 1,850 psi
1 day 3,050 psi
28 days 7,650 psi
Expansion (ASTM C157) Moist Cure
28 days 0.08%
Flexural Strength (ASTM C78)
28 days 1,200 psi
Tensile Strength (ASTM C190)
28 days 800 psi
Data Sheets

Download Technical Data Sheet

Download Safety Data Sheet

Download Specifications Guide

Download Technical Data Sheet (Spanish)

Play

Coverage

  • Yield
    • One 50 lb (22.7 kg) pail yields approximately 0.43 cubic feet
    • One pound (0.45 kg) will fill 15.6 cubic inches

Packaging

  • 10 lb (4.5 kg) pail and 50 lb (22.7 kg) pails
  • 36-50 lb pails per pallet

Shelf Life

18 months when properly stored in unopened containers in a clean, dry area between 45°F and 90°F (7°C and 32° C).

 

Recommended Uses: SpecPlug is suitable for:

  • Basement and masonry cracks
  • Floor and wall joints
  • Manholes and sewer pipes
  • Tunnels and swimming pools
  • Below-grade foundations

Surface Preparation

  • Enlarging Cracks: For best results, enlarge the crack to at least 3/4″ in width and depth, ensuring a square or undercut shape.
  • Cleaning: Remove all grease, wax, oil, contaminants, curing compounds, and any weak, contaminated, or deteriorated concrete from the substrate.
  • Wetting Surface: Saturate the repair area with water. SpecPlug can cure in the presence of running water, making it ideal for active leaks.

Mixing and Application

  • Mixing SpecPlug:
    • Create a putty-like consistency by adding a small amount of clean water to SpecPlug. Aim for a 20%-21% water-to-product ratio by weight.
    • Mix only enough material that can be placed within 2 minutes.
  • Application Procedure:
    • For vertical and moving-water applications, hold the mixed SpecPlug firmly in place until it sets, typically within about 3 minutes.
    • Adjust water temperature to manage the setting time: use hot water and warm material in cold conditions, and cold water in hot conditions.

Curing

  • Curing: Keep SpecPlug damp for at least 30 minutes to support curing. Optimal strength is achieved through wet curing for up to 2 days.

Compressive Strength (ASTM C109)
1 hour 1,850 psi
1 day 3,050 psi
28 days 7,650 psi
Expansion (ASTM C157) Moist Cure
28 days 0.08%
Flexural Strength (ASTM C78)
28 days 1,200 psi
Tensile Strength (ASTM C190)
28 days 800 psi
Data Sheets

Download Technical Data Sheet

Download Safety Data Sheet

Download Specifications Guide

Download Technical Data Sheet (Spanish)

Play