Waterproofing Chemical Consultant In Bengaluru

Waterproofing chemicals are specialized compounds used to prevent water ingress into buildings, structures, and materials. They are essential in protecting surfaces like concrete, roofs, basements, water tanks, and foundations from water damage, corrosion, and mold growth. Below is a detailed breakdown of the types, applications, and properties of commonly used waterproofing chemicals:

🧪 Types of Waterproofing Chemicals

Chemical Type Description & Use

Acrylic-Based Waterproofing Water-based, UV resistant. Used in terraces, balconies, and external walls.

Polyurethane (PU) Highly elastic, durable. Ideal for roofs, terraces, and water tanks.

Bituminous Coating Asphalt-based. Provides excellent adhesion and water resistance. Used in foundations.

Bituminous Membranes Prefabricated rolls. Often applied with torch-on method. Used in roofs & basements.

Cementitious Waterproofing Powder mixed with water. Easy to apply. Common in toilets, bathrooms, and tanks.

Silicone-Based Sealants Flexible, weatherproof. Used for joints, glass facades, and window frames.

Crystalline Waterproofing Reacts with concrete to form crystals that block water. Used in concrete structures.

Epoxy-Based Coatings Two-part chemical. Hard and durable. Ideal for industrial floors and water tanks.

Liquid Rubber Flexible, seamless membrane. Applied by spray or roller. Used in roofs, decks.

🏗️ Common Applications

Structure/Surface Recommended Chemical

Terraces/Roofs PU coating, bituminous membranes, liquid rubber

Bathrooms/Toilets Cementitious waterproofing, epoxy coatings

Basements Bituminous coating, crystalline waterproofing

Water Tanks Cementitious + epoxy or PU coatings

Expansion Joints PU sealant, silicone sealant

Foundations Bituminous membranes, crystalline systems

Walls Acrylic-based waterproofing paints

⚙️ Key Properties to Look For

Water resistance / impermeability

UV stability (important for exposed surfaces)

Flexibility and crack bridging

Chemical resistance

Adhesion to various substrates

Breathability (some allow vapor but not water)

🏷️ Popular Brands

Dr. Fixit (Pidilite)

Sika

Fosroc

BASF Master Builders

Asian Paints SmartCare

Mapei

CICO

🧰 Tips for Choosing the Right Product

Understand the water exposure (occasional splash vs. constant immersion).

Assess the substrate condition (cracked, porous, new or old concrete).

Consider surface movement (choose flexible solutions for expansion joints).

Check environmental exposure (sunlight, chemical exposure).