Fosroc

Fosroc Conplast WL Xtra, Waterproofing Liquid for Concrete and Plaster

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Product Information

Product Overview

The Fosroc Conplast WL Xtra, Waterproofing Liquid for Concrete and Plaster is a dark-brown integral waterproofing admixture based on new-generation cement dispersion polymers. Added to concrete or plaster, it reduces water demand while keeping workability, which cuts porosity and blocks capillary paths for a dense, leak-resistant matrix.

It reduces water permeability by over 80%, protects steel reinforcement (JIS Z1535 modified), improves cohesion without bleeding, and conforms to IS:2645-2003. The dose is 200 ml per 50 kg bag of cement, so one 20 L bucket treats up to 100 bags.

Key Features

Integral waterproofing for concrete and plaster
Over 80% reduction in water permeability
Anti-corrosion protection for rebar
Better workability and cohesion
IS:2645-2003 compliant
200 ml per 50 kg cement bag

Ideal For

Roof slabs, terraces and screeds
External plaster and ceilings
Foundations and basements
Tanks, sumps and sunken bathroom floors

Installation Guide

Dry-mix the cement, sand and aggregate for 1 minute.
Add 75–80% of the mixing water and mix for 2–3 minutes.
Dilute the admixture (200 ml per bag) into the remaining water.
Add it to the mixer and mix for 2 more minutes before placing.

Good to Know

Never pour it directly onto dry cement.
High-risk areas still benefit from a surface membrane as well.

Frequently Asked Questions

What is the dose?

200 ml per 50 kg bag of cement.

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Product Specifications

Brand	Fosroc
Category	Waterproofing Materials
Product Model	Conplast WL Xtra (20 Litre Pack)
Manufacturer	Fosroc Chemicals (India) Pvt. Ltd.
Physical State / Appearance	Dark brown liquid
Base Chemistry	Advanced cement dispersion polymers
Standard Compliance	Fully conforms to Indian Standard IS:2645-2003
Corrosion Standard	Confirmed to Japanese Code JIS Z1535 (Modified)
Permeability Reduction	Reduces water penetration by over 80% compared to standard mixes
Recommended Dosage	200 ml per 50 kg bag of cement
Total Coverage per 20L Bucket	Sufficient to treat up to 100 bags of cement
Room / Area	Bathroom, Roof & Terrace, Water Tanks
Special Features	Rust / Corrosion Resistant, Waterproof
Sold by	Identity Retail Innovations Private Limited