Kerakoll EP21

Kerakoll EP21: Reliable Resin for Substrate Reinforcement

Introduction to Kerakoll EP21

Kerakoll EP21 stands out as a versatile epoxy resin designed for substrate consolidation and waterproofing. This two-component system, known for its very low volatile organic compound (VOC) emissions and solvent-free formulation, is an environmentally conscious choice for both indoor and outdoor applications. Particularly effective in areas with limited ventilation, EP21 offers robust protection against residual moisture, making it suitable for tasks such as reinforcing heated substrates and laying parquet on surfaces with up to 5% CM residual moisture.

Functionality of Kerakoll EP21

Kerakoll EP21 comes as a two-part system requiring a 2.5:1 mixing ratio. Once combined, the mixture should be stirred until it achieves a consistent texture. Depending on your application needs—be it as a dust-binding primer, deep fixer, or impregnating agent—the resin can be applied using a brush or roller. For substrates with varying absorption rates, dilution with Keragrip Eco Pulep is recommended. In cases where full absorption can't be guaranteed, a layer of fresh EP21 can be dusted with Quarzo 5.12 to enhance adhesion.

Key Benefits and Features

Kerakoll EP21 offers significant benefits including high consolidation ability and excellent performance on a range of substrates, from highly absorbent to less absorbent types. Suitable for both civil and commercial projects, this resin supports a healthier indoor environment with its low VOC emissions and absence of solvents. It acts as an effective moisture barrier and is particularly beneficial for heated substrates. Additionally, its ease of use, long shelf life, and compatibility with various adhesives—such as organic mineral reactive adhesives—make it a practical choice for professionals.

Application Instructions

Before application, ensure the substrate is clean, dry, and stable. Mix parts A and B at the specified 2.5:1 ratio using a low-speed electric mixer until uniform. Apply the mixture using a brush or roller, as per the specific requirements of your project. When using as an impregnating agent, apply a diluted layer followed by a full-strength layer after drying. Maintain good ventilation during and after application, and clean tools with Diluente 01 immediately after use to prevent curing. Once cured, the product can only be removed mechanically.

Additional Usage Tips

Kerakoll EP21 is intended for professional use and should be applied according to current standards and guidelines. Avoid exposure to direct sunlight and extreme temperatures, using the product within the recommended range of +10°C to +35°C. If a second layer needs to be applied after more than 30 hours, sanding of the surface is required to ensure proper adhesion. For further assistance, Kerakoll Worldwide Global Service offers expert advice and support.

• Eco-friendly resin for substrate reinforcement and waterproofing
• Suitable for both indoor and outdoor environments
• Low VOC emissions and free from solvents
• Ideal for heated and absorbent substrates
• Effective moisture barrier up to 5% residual moisture content
• Applicable to concrete floors, industrial surfaces, and other durable substrates
• Offers excellent chemical and mechanical resistance for industrial applications