Water Retaining Bodies

Structures that store or transport water—like swimming pools, reservoirs, potable water tanks, sumps, overhead tanks, sewage treatment plants (STPs), and dams—are constantly exposed to hydrostatic pressure, chemicals, and temperature fluctuations. Over time, these factors can lead to structural degradation and water leakage.

WG Group offers high-performance waterproofing systems specially designed for water-retaining structures, ensuring long-lasting water tightness, chemical resistance, and compliance with potable water standards.

Where Water Retaining Body Waterproofing is Recommended

Swimming Pools
Potable Water Tanks (Overhead and Underground)
Sewage Treatment Plants (STPs)
Rainwater Sumps & Collection Tanks
Dams and Canals
Ponds and Artificial Water Features
Industrial and Chemical Water Storage Systems

Key Features of WG Water Retention Solutions

Withstands Constant Water Pressure
Resistant to Chlorides, Chemicals, and Wastewater
Suitable for Potable Water Contact
Active Self-Sealing Technology (Crystalline Systems)
Flexible Crack-Bridging Systems (Elastomeric)
Durable, Non-toxic, and Low Maintenance

WG Group Recommended Systems

Withstands Constant Water Pressure
Resistant to Chlorides, Chemicals, and Wastewater
Suitable for Potable Water Contact
Active Self-Sealing Technology (Crystalline Systems)
Flexible Crack-Bridging Systems (Elastomeric)
Durable, Non-toxic, and Low Maintenance

1. Cementitious Coating Systems (Positive Side)
A) Crystalline-Based Cementitious System
- Active waterproofing using crystalline technology
- Reacts with moisture to form insoluble crystals that seal capillaries and hairline cracks
- Allows vapor permeability (lets concrete “breathe”)
- Long-term durability and reactivation on water contact
- Ideal for reservoirs, tanks, water treatment plants, and below-grade structures
- Approved for potable water use
Surface Preparation Highlights:
- All honeycombs, cracks, and joints sealed using crystalline mortar
- Pressure grouting at weak zones using PRAH (for hydrostatic conditions)
- 50×50 mm angle fillets with PMM at all corners
- Bore packing with non-shrink grout (e.g., GP2)
- Surface must be in SSD (Saturated Surface Dry) condition
Post-Treatment:
- Keep surface damp for 10 days
- Protect from direct sun, wind, and frost using poly sheets or damp burlap
  B) Polymer-Based Elastomeric Cementitious System
  - Flexible, elastomeric cementitious coatings
  - Protects against acid gases, chloride ions, oxygen, and water
  - Suitable for new and old concrete, brick, and blockwork structures
  - Seamless waterproofing for tanks, reservoirs, culverts, roofs, and basements
  - Crack-bridging capability for surface defects
  - Ideal as undercoat (not UV stable)
  Surface Preparation Highlights:
  - Clean and patch all voids with PMM or non-shrink repair mortar
  - Grouting with PRAN (for non-hydrostatic conditions)
  - 50×50 mm angle fillets with PMM
  - Bore packing with GP2
  - SSD condition required before application
    
    2. Bitumen/Epoxy-Based Systems (Special Applications)
    - Used in STP tanks or potable water tanks where internal plaster cannot be removed
    - Applied only if the plaster is sound and well-bonded
    - Suitable for selective cases where direct access to concrete is restricted

Why Choose WG Group

IS-standard & certified waterproofing systems
Safe for potable water contact
On-site expert inspection and customized system selection
Detailed surface preparation protocols for guaranteed performance
End-to-end execution and post-application support