WEBERDRY 1K FLEXSHIELD – WATERPROOFING SIMPLIFIED
DESCRIPTION
Weberdry 1K Flexshield is a versatile waterproofing solution designed for the most demanding applications. It excels in its high flexibility, ensuring it can cover cracks on flexible surfaces with ease. Whether you prefer to leave it exposed or apply tiling on top, this product delivers unmatched performance. Its one-component composition simplifies application, making it a preferred choice for both professionals and DIY enthusiasts.
APPLICATION
Weberdry 1K Flexshield boasts a broad range of applications, making it an ideal choice for various wet areas in your home or construction projects. It can be used in bathrooms, kitchens, flat roofs, balconies, roof decks, swimming pools, portable water tanks, roofs, basements, underground areas, and even green roofs for root resistance. Wherever waterproofing is essential, Weberdry 1K Flexshield is the answer.
ADVANTAGES
- High Flexibility: Weberdry 1K Flexshield is engineered to handle the dynamic movement of structures, ensuring it remains effective even in high-flex environments.
- UV and Weather Resistance: This product can be left exposed, and it boasts excellent resistance to weather conditions and harmful UV rays.
- Positive and Negative Water Pressure Resistance: Can take on both positive and negative water pressure, ensuring comprehensive protection.
- Versatile Application: Whether you are troweling, brushing, or rolling, is compatible with various application techniques.
PRODUCT INFORMATION
- Packaging: Available in 1 kg and 4 kg buckets, as well as 20 kg bags.
- Color: Grey (Cement color)
- Coverage:
- 1 kg bucket: Approximately 0.5-0.7 m²
- 4 kg bucket: Approximately 2.0-2.7 m²
- 20 kg bag: Approximately 10.0-13.3 m²
TECHNICAL SPECIFICATIONS

CONSTRUCTION INSTRUCTIONS
Substrate Preparation:
- Ensure the substrate is in sound condition, level, and free from any dirt, dust, oil, or contaminants. A clean surface is crucial for proper adhesion.
- Examine the substrate for any unsound areas or defects. Repair these areas using Weberep repair mortar. Make sure the repaired sections are fully cured at a rate of 7 days per 1 cm thickness before applying Weberdry 1K Flexshield.
- Dampen the substrate surface with clean water until it reaches its saturation point. This ensures that the substrate will not absorb excess moisture from the Weberdry 1K Flexshield mixture too quickly.
Mixing:
- In a clean container, mix Weberdry 1K Flexshield with clean water in the recommended ratio. The mixing ratio can vary between 3.5:1.0 to 6.5:2.0 by volume.
- You can use a slow-speed electric mixer for large quantities or gradually mix the components by hand for smaller applications. The goal is to obtain a homogeneous, lump-free paste.
- Allow the mixed Weberdry 1K Flexshield to sit for 3-4 minutes to facilitate chemical curing. Do not skip this step, as it ensures optimal performance.
- If you need additional reinforcement, is compatible with products like webertape BE 14 for waterproofing corners between the floor and wall, weberdry fleece PE 60 for enhanced adhesion and durability, and webertape fibermesh 5 or webertape fibermesh 100 for extra adhesion in high-stress areas.

Waterproofing Application:
- Can be applied using trowel, brush, or rolling techniques, depending on the desired finish and the mixing ratio of water.
- Begin by using a trowel, appropriate brush, or roller to apply Weberdry 1K Flexshield on the surface. Ensure even coverage at an average consumption rate of about 0.75 – 1.00 kg/m² for the first layer.
- Make sure that the product covers the entire area and there are no gaps or uncoated sections.
- Allow the applied layer to sit for 2 – 3 hours to reach its initial set. The duration may vary depending on weather conditions, so consider this factor during application.
- Apply the second layer of Weberdry 1K Flexshield vertically to the first layer. The recommended consumption for the second layer is also 0.75 – 1 kg/m². This results in a total thickness of 1-2 mm. If the recommended thickness is not achieved after the second layer, consider rendering the mortar and then using a brush to ensure a suitable roughness and a surface free of air bubbles.
Application Area:
- Weberdry 1K Flexshield is suitable for a wide range of applications. It is designed for waterproofing wet areas in your home or construction projects, including bathrooms, kitchens, flat roofs, balconies, roof decks, swimming pools, portable water tanks, roofs, basements, underground areas, and green roofs designed to resist root intrusion.
Shelf Life and Storage:
- Ensure that the product is stored correctly. Has a shelf life of one year after the manufacturing date when stored unopened in a dry and well-ventilated place.
- If the bag is opened, store it airtight in dry and well-ventilated conditions to preserve its quality and effectiveness. Proper storage is essential for maintaining the product’s performance.
By following these detailed construction instructions, you can confidently apply Weberdry 1K Flexshield to protect and waterproof your surfaces, ensuring the longevity and durability of your construction projects.




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