Efflock 20L is a high-performance hydrophobic additive formulated for all cement-based construction materials. It delivers long-lasting protection by creating a permanent moisture-repellent barrier throughout the entire concrete matrix. Efflock prevents efflorescence by stopping water from dissolving and migrating salts and free lime, providing an effective internal waterproofing solution unaffected by structural movement or surface wear.

Specifications & Features

• Volume: 20 Litre
• Makes: Up to 2020 Litres of treated mix
• Type: Hydrophobic cement additive
• Dilution Ratio: 1:100 with water
• Compatibility: Suitable for all cementitious mixes including screed, grout, adhesive, render, and mortar
• Performance: Permanently repels moisture and controls efflorescence within concrete
• Durability: Not affected by traffic wear or structural movement

Applications

• General Construction: Use as an additive in all cement-based mixes to enhance water resistance and durability
• Bathrooms & Balconies: Provides an internal barrier to reduce water migration and prevent shower leaks
• Masonry & Brickwork: Ideal for preventing rising damp, salt attack, and surface staining in stone and bricks
• Damp Proofing: Acts as an internal damp proof course (DPC) when used in mortar beds for bricklaying

Installation Tips / Usage Guidelines

• Mix Ratio: Dilute 1 part Efflock with 100 parts water
• Tile Screed Instructions:
• Step 1: Prepare screed with a 3:1 or 4:1 sand to cement ratio
• Step 2: Measure and add diluted Efflock solution
• Step 3: Mix for at least 5 minutes to ensure full integration
• Step 4: Install with good compaction to eliminate voids
• Step 5: Water test screed after 24 hours for performance verification

Delivery & Pickup

• Sydney-wide delivery
• Crane trucks with up to 21m reach available to get your delivery to you exactly where you need it
• Click & Collect available – ready in 2 hours
• Bulk pricing available for account customers

Need Help?

Call us on (02) 8543 3401. We can help you with quantity calculations, product information, and delivery solutions.