Navodya Group Pvt. Ltd. : ER. Waterproofing Liquid is an advanced integral liquid waterproofing compound formulated to prevent water leakage, seepage, and capillary dampness in concrete and plaster. Engineered for foundation slabs, roofs, retaining walls, basements, and wet areas, it enhances structural density and protects against long-term water damage.
What is ER Waterproofing Liquid and How Does It Work?
ER Waterproofing Liquid is a specialized surface-tension reducing and pore-blocking chemical additive. When mixed into cement mortar or concrete, it disperses evenly through the batch, dramatically reducing water permeability without compromising compressive strength or curing characteristics.
By sealing microscopic capillaries within the concrete matrix, it permanently halts moisture migration. This prevents damp patches on internal walls, protects embedded steel reinforcement from rust and spalling, and stops unsightly white efflorescence (salt deposits) from marring painted surfaces.
Application Guide & Recommended Dosage
For optimal waterproofing performance, mix ER Waterproofing Liquid with the gauging water before adding it to dry concrete or mortar ingredients.
- Dosage: Add 200 ml of ER Waterproofing Liquid per standard 50 kg bag of cement.
- Dry Mix: Thoroughly mix cement, sand, and coarse aggregates according to project mix design specifications.
- Water Preparation: Measure 50% of the required water and add it to the dry mix for initial blending.
- Additive Addition: Stir ER Waterproofing Liquid into the remaining 50% of gauging water and pour into the mixer.
- Curing: Mix thoroughly for 2 to 3 minutes, place concrete promptly, and follow standard water curing practices.
Versatile Site Applications
Equally effective for casting foundation footings, roof slabs, water tanks, basement retaining walls, and internal plastering.
Chloride-Free & Reinforcement Safe
Formulated without harmful chlorides, ensuring zero corrosion risk for embedded steel rebar and safe handling on site.
Frequently Asked Questions About Waterproofing
The recommended dosage is 200 ml per 50 kg bag of cement. Using less than the recommended dosage will reduce the pore-blocking effectiveness, while excessive overdosing should be avoided.
No. It is chemically balanced to maintain standard initial and final setting times of Ordinary Portland Cement (OPC) and Pozzolana Portland Cement (PPC) without causing unwanted retardation.
Yes. Adding ER Waterproofing Liquid to external plaster mortar creates an impermeable shield against driving monsoon rain, preventing dampness from seeping into interior living spaces.
Efflorescence occurs when water dissolves internal salts and brings them to the plaster surface. By blocking water movement through capillaries, ER Waterproofing Liquid eliminates the vehicle that carries salts to the surface.
Yes. Once cured within the concrete or mortar plaster, ER Waterproofing Liquid is completely inert and non-toxic, making it safe for potable water reservoirs and storage tanks.