BPI Plugging Compound – Rapid Setting Water Leak Sealer – 5kg

Product Description

BPI Plugging Compound is a rapid-setting, cementitious leak sealing compound designed to instantly stop active water ingress in concrete and masonry structures.

Formulated for professional use, it reacts quickly with water to create a watertight seal in cracks, joints, and penetrations—even under running water conditions.

Ideal for use prior to tanking systems, this high-performance compound sets in minutes, allowing fast progression onto waterproofing works.

Special Features

• Cement based rapid setting – cures in under 2 minutes
• Instantly stops active water leaks
• Expands slightly to form a tight watertight seal
• Suitable for cracks, joints and service penetrations
• Can be used to anchor fixings
• Ideal prior to tanking slurry application
• Easy hand-mix application

Typical Applicatons

• Stopping active water ingress in basements and cellars
• Sealing cracks in concrete and masonry
• Pipe penetrations and service entries
• Construction joints and voids
• Emergency leak sealing prior to full waterproofing

Application Guide

1. Cut out cracks/holes to approx. 20mm square
2. Remove loose material and dampen surface
3. Mix small amounts (usable within 2 minutes)
4. Apply immediately and press firmly into place
5. Hold until set (approx. 30–60 seconds)
6. Trim flush once water flow has stopped

Important: Not suitable for large voids without staged application. Only mix what can be used immediately due to rapid set time. Cannot be reworked once set.

Specification

• Type: Cement-based rapid setting compound
• Set Time: Approx. 2 minutes
• Mix Ratio: 1 part water : 4 parts powder
• Colour: Grey
• pH: ~11 (alkaline)
• Pack Size: 5kg tub

Health & Safety

For all technical and safety data sheets please see the downloads section.