DEFIX FLOOR UNDERCOAT DU11 – A Solution for Leveling and Strengthening Adhesion in Epoxy Flooring Systems
In modern epoxy flooring systems, many people often focus only on the primer and topcoat, overlooking the role of the intermediate layer. In reality, this component is crucial for determining the flatness, load-bearing capacity, and lifespan of the entire coating system. If the subfloor is not even or the adhesion between layers is poor, the finished topcoat is highly susceptible to peeling, cracking, or premature wear.
DEFIX FLOOR UNDERCOAT DU11 is a two-component epoxy intermediate coating developed to create a solid foundation before applying the topcoat. The product optimizes adhesion, improves mechanical hardness, and enhances the overall quality of the floor coating system.
What is DEFIX FLOOR UNDERCOAT DU11?
DEFIX FLOOR UNDERCOAT DU11 is a two-component, self-leveling epoxy coating used as an intermediate layer in self-leveling or anti-slip epoxy flooring systems.
More than just a buffer layer between the primer and the topcoat, DU11 also serves to:
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Level concrete surfaces.
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Conceal minor imperfections on the subfloor.
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Enhance adhesion between material layers.
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Increase the load-bearing capacity of the coating system.
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Boost the stability and lifespan of the project.
This product is suitable for both civil and industrial projects, especially in areas with high demands for durability and aesthetics.
Outstanding Advantages of DEFIX FLOOR UNDERCOAT DU11
Self-leveling Capability
One of the biggest advantages of DU11 is its self-leveling capability, which significantly reduces uneven spots on concrete floors. This allows the topcoat to achieve a flatter, more uniform finish.
Enhanced Adhesion Between Coating Layers
The product creates a strong bond between the primer and the topcoat, helping to minimize the risk of peeling when the structure is subjected to heavy loads or mechanical impacts over long periods.
Excellent Load-Bearing and Abrasion Resistance
DU11 contributes to the overall load-bearing capacity of the floor coating system, making it suitable for areas with frequent forklift or trolley traffic, or high pedestrian flow.
Flexible Application
The product can be applied at various thicknesses depending on the design requirements of each project, meeting diverse needs from residential floors to industrial factories.
Applications of DEFIX FLOOR UNDERCOAT DU11
Self-Leveling Epoxy Flooring Systems
DU11 is used as an intermediate layer for self-leveling coating systems with thicknesses from 1.5–3 mm in:
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Manufacturing plants
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Logistics warehouses
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Car garages
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Basement ramps
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Shopping centers
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Showrooms
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Electronics factories
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Mechanical workshops
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Areas with forklift operations
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Areas requiring seamless, easy-to-clean surfaces.
Anti-Slip Rough Flooring Systems
When combined with specialized quartz sand, DU11 creates an effective anti-slip rough layer, suitable for:
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Food processing plants
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Beverage factories
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Seafood processing plants
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Industrial kitchens
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Pharmaceutical factories
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Cosmetics factories
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Aircraft maintenance hangars
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Areas frequently exposed to water or oil.
Key Technical Specifications
DEFIX FLOOR UNDERCOAT DU11 uses a two-component epoxy resin base with a mixing ratio of A:B = 9:1 by weight.
Some notable technical indicators include:
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Adhesion strength ≥ 1.5 MPa.
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Impact strength ≥ 50 Kg.cm.
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Solid content approximately 90 ± 5%.
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Specific gravity approximately 1.4–1.6 Kg/L depending on color.
Theoretical coverage:
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1 mm: approximately 1.5 kg/m²
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2 mm: approximately 3 kg/m²
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3 mm: approximately 4.5 kg/m²
Typical Application Process
For self-leveling epoxy flooring systems:
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Apply 1–2 coats of DEFIX FLOOR PRIMER EP-1.
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Apply 1 coat of DEFIX FLOOR UNDERCOAT DU11.
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Apply the topcoat DEFIX SELF LEVEL ES-1 or DEFIX STONE FLOOR ES-2.
For anti-slip rough flooring systems:
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Apply 1–2 coats of EP-1.
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Apply DU11 combined with quartz sand to create a rough texture.
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Finish with 1–2 coats of DEFIX FLOOR FINISH EF-1.
Application Conditions for Optimal Performance
To ensure the highest quality coating system, the following must be met:
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Surface temperature between 10–30°C.
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Substrate moisture content below 4%.
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Ambient humidity not exceeding 80%.
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Surface cleaned of dust, grease, weak cement, and other impurities before application.
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Cracks or holes must be repaired before applying the intermediate layer.
Adhering to the correct application conditions will help the DU11 layer maximize its adhesion capabilities and minimize issues such as air bubbles, peeling, or reduced coating lifespan.
Important Notes for Use
During application, the mixed material must be used within the allowed pot life to prevent excessive heat buildup and rapid hardening in the container due to chemical reactions.
Additionally:
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Do not add solvent or water.
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Mix only the amount of material needed for each application session.
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Tools must be cleaned immediately with DEFIX THINNER after use.
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Apply in a well-ventilated area and use appropriate personal protective equipment such as gloves, safety glasses, and masks to ensure workplace safety.
Why Choose DEFIX FLOOR UNDERCOAT DU11?
A durable epoxy flooring system depends not only on the topcoat but also significantly on the intermediate layer. DEFIX FLOOR UNDERCOAT DU11 provides a comprehensive solution that increases flatness, strengthens adhesion, improves load-bearing capacity, and extends the lifespan of the project.
Manufactured on a modern production line by DELTA CENTRE VIETNAM, the product meets technical requirements for various types of projects, from civil to industrial, and is easily combined with other DEFIX epoxy coating systems to create a synchronized application solution.
Contact Us for Epoxy Flooring Solutions
If you are looking for a high-quality intermediate coating solution for factory floors, warehouses, garages, basements, showrooms, or areas requiring high load-bearing capacity and durability, DEFIX FLOOR UNDERCOAT DU11 is a worthy consideration.
Contact DGO Vietnam now for technical advice on suitable coating systems, assistance with material selection, quantity estimation, and detailed application process guidance, helping your project achieve long-term effectiveness and optimal cost efficiency.