ARDEX R 3 E

Working Time (20°C)

Approximately 20 minutes.

Walkability Time (20°C)

Approximately 6-8 hours.

Overcoating Time (20°C)

Approximately 8 hours.

Coverage

A 6 kg package can cover approximately 24 m², with an average consumption of 250 g/m².

Technical Data Sheet

Frequently Asked Questions About ARDEX R 3 E: Solvent-Free Epoxy Primer

What is ARDEX R 3 E: Solvent-Free Epoxy Primer?

ARDEX R 3 E is a solvent-free, two-component epoxy primer and bonding bridge suitable for both indoor and outdoor use on dry surfaces. It is ideal for concrete, cement, and calcium sulfate screeds, providing enhanced mechanical strength before applying ceramics and flooring products. With a working time of approximately 20 minutes and walkability in 6-8 hours, a 6 kg package covers around 24 m², making it efficient for various applications.

What are the benefits of using ARDEX R 3 E?

Using ARDEX R 3 E offers several advantages:

• Solvent-Free: Environmentally friendly with no harmful solvents.
• Enhanced Mechanical Strength: Provides a strong bond between substrates, ensuring the longevity of flooring installations.
• Quick Working Time: With a working time of approximately 20 minutes, it allows for efficient application.
• Walkability: Floors can be walked on after 6-8 hours, minimizing downtime.
• Efficient Coverage: A 6 kg package covers approximately 24 m², making it cost-effective for large areas.
• Versatile Use: Suitable for a variety of surfaces, including concrete, cement, and calcium sulfate screeds.
• Compatibility: Can be used in conjunction with industrial flooring systems or leveling applications, such as ARDEX K 80, to enhance mechanical strength by applying sand.

What types of surfaces can I apply ARDEX R 3 E on?

ARDEX R 3 E is suitable for a variety of dry surfaces, including:

• Concrete screeds
• Cement screeds
• Calcium sulfate screeds
• Finished surfaces prepared for bonding

It serves as a primer and bonding bridge before the application of cement-based ceramics, floor products, and calcium sulfate screeds. Additionally, it can be used with industrial flooring systems or leveling applications like ARDEX K 80 to enhance mechanical strength by applying sand.

How do I apply ARDEX R 3 E: Solvent-Free Epoxy Primer?

To effectively apply ARDEX R 3 E, follow these best practices:

• Prepare the Surface: Ensure the surface is dry, clean, and free from old layers, grease, silicone, sanding dust, and other contaminants.
• Shake Well: Shake the product thoroughly before application to ensure proper mixing of the two components.
• Mix Properly: Pour the resin and hardener into a metal package and mix according to the manufacturer’s instructions. Do not pour the product directly onto the floor.
• Apply Evenly: Use a roller to apply the primer evenly across the surface. Ensure complete coverage for optimal bonding.
• Allow to Dry: After application, the surface can be walked on after approximately 6-8 hours. Overcoating can be done after about 8 hours.

What are the important considerations when using ARDEX R 3 E?

When using ARDEX R 3 E, keep the following considerations in mind:

• Surface Preparation: Ensure the surface is clean, dry, and free from contaminants to achieve optimal bonding and performance.
• Optimal Conditions: Apply the primer at room temperatures between +15°C and +25°C, with floor temperatures between +15°C and +22°C, and relative humidity of 40%-75%.
• Ventilation: Ensure adequate ventilation in the application area to facilitate proper drying and reduce fumes.
• Mixing Ratio: Follow the recommended 10:1 ratio of hardener to resin. For partial amounts, determine the quantities by weighing.
• Application Limits: Do not apply more than twice a day to prevent excessive blistering.
• Drying and Walkability: Allow the primer to dry completely before applying finishes. The surface can be walked on after 6-8 hours.
• Avoid Dilution: The product is ready for application and should not be diluted.
• Cleanup: Clean up any spills immediately to prevent discoloration and ensure the integrity of the surface.
• Protective Measures: Use shoe covers on uncoated fillers and avoid contact with materials containing softening agents to prevent softening and color changes.

How should I store ARDEX R 3 E to maintain its effectiveness?

ARDEX R 3 E should be stored in its original, unopened packaging in a dry environment with temperatures between +5°C and +25°C. Keep the product away from frost and moisture. Once opened, ensure the packaging is tightly sealed to prevent moisture contamination and use the product within its shelf life.

What is the shelf life of ARDEX R 3 E?

ARDEX R 3 E has a shelf life of approximately 12 months when stored correctly in its original, unopened packaging in a dry, cool environment.

What is the coverage of ARDEX R 3 E?

A 6 kg package of ARDEX R 3 E can cover approximately 24 m², with an average consumption of 250 g/m².

What are the drying and setting times for ARDEX R 3 E?

The drying and setting times for ARDEX R 3 E are as follows:

• Working Time: Approximately 20 minutes at 20°C.
• Walkability Time: Approximately 6-8 hours at 20°C.
• Overcoating Time: Approximately 8 hours at 20°C.

These times apply at +20°C and relative humidity between 50%, with careful ventilation of work areas and absence of drafts. Lower temperatures, higher humidity levels, and poor ventilation may delay drying.

What areas of use are suitable for ARDEX R 3 E?

ARDEX R 3 E is suitable for both indoor and outdoor applications on dry surfaces. It is ideal for:

• Concrete screeds
• Cement screeds
• Calcium sulfate-based screeds
• Finished surfaces preparing for ceramics and flooring products
• Industrial flooring systems and leveling applications

It is particularly useful in environments that require enhanced mechanical strength and durability, such as commercial buildings, industrial facilities, and high-traffic areas.

How does ARDEX R 3 E enhance mechanical strength?

ARDEX R 3 E acts as a primer and bonding bridge, providing a strong foundation for the application of ceramics, flooring products, and calcium sulfate screeds. When used in conjunction with industrial flooring systems or leveling applications like ARDEX K 80, it enhances mechanical strength by allowing the application of sand, ensuring a robust and durable finish.