NAIPHUC VIETNAM
BETTER FLOOR
BETTER DEVELOPMENT
House No. 35, Group 20, Chanh Quarter, Go Dau Ward, Tay Ninh Province, Vietnam
PU (Polyurethane) self-leveling floor is a modern industrial flooring solution that self-balances the surface, creating a seamless coating without joints. This type of floor stands out with its high elasticity, excellent load-bearing capacity, and superior chemical resistance, increasing durability and reducing maintenance costs compared to traditional flooring such as epoxy or concrete.
PU self-leveling floors are widely applied across various industries. In the food and beverage industry, PU flooring ensures food safety standards due to its waterproof, antibacterial properties and easy cleaning. In pharmaceuticals and healthcare, PU floors meet stringent GMP and FDA standards, maintaining a sterile environment, preventing dust accumulation, and emitting no toxic gases. Particularly in cold storage or factories with extreme temperatures, PU flooring remains highly durable, resistant to cracking or shrinkage under low temperatures.
In heavy industries such as chemical manufacturing, mechanical engineering, and automotive production, PU flooring is favored for its high load capacity, resistance to oil and strong chemicals. Beyond industrial settings, PU flooring is also used in commercial centers, showrooms, and public areas due to its aesthetic appeal, diverse color options, and smooth surface, providing a luxurious appearance.
The construction of PU self-leveling floors requires precision and strict adherence to technical standards to ensure durability, performance, and aesthetics. Below are the critical technical requirements for each construction phase.
2.1 Concrete Surface Preparation
The concrete substrate plays a decisive role in the adhesion of the PU coating. If the surface is not treated correctly, the PU floor may peel, crack, or blister over time. The preparation process includes:
Grinding the surface with industrial grinders to remove dirt, grease, old paint, and impurities that may reduce PU adhesion.
Creating the standard roughness (CSP 3 - CSP 5) to ensure strong bonding between the PU coating and the concrete substrate.
Checking the moisture content of the concrete, ensuring it is below 5% to prevent blistering caused by moisture evaporation. If the moisture level exceeds the limit, a specialized primer or moisture barrier should be applied.
Treating cracks and expansion joints; large cracks should be filled with specialized materials to ensure a uniform surface before application.
2.2 Primer Application – A Critical Step for Adhesion Enhancement
The primer acts as an intermediary between the concrete and the PU coating, enhancing adhesion and reducing the risk of peeling. Key technical requirements include:
Selecting the appropriate primer based on the concrete conditions, either epoxy or PU primer.
Applying evenly across the surface, ensuring deep penetration into the substrate for optimal bonding.
Allowing the primer to dry for 4 - 8 hours, depending on weather conditions. The PU coating should not be applied until the primer is fully cured.
2.3 PU Material Mixing – Precision Determines Floor Quality
The mixing of PU coating must strictly follow the manufacturer's ratio to ensure physical properties such as durability, self-leveling capability, and chemical resistance. Important considerations:
Mixing according to the precise ratio; improper mixing (too thick or too thin) can affect the floor's performance.
Using the PU mixture within 20 - 30 minutes after preparation to prevent premature curing.
Employing a high-speed mixer to achieve a uniform blend, preventing clumping or layer separation.
2.4 PU Self-Leveling Coating Application – Standard Procedure
The self-leveling PU layer typically has a thickness of 2mm – 5mm, depending on application requirements. Construction should follow these principles:
Using a notched trowel to evenly spread the PU coating at the standard thickness.
Rolling with a spiked roller to eliminate air bubbles and ensure a smooth, defect-free surface.
Maintaining a continuous application process to avoid seams, preserving aesthetics and structural integrity.
2.5 Inspection, Curing, and Finalization
After application, the PU floor requires at least 24 - 48 hours to dry before light traffic and 5 - 7 days to achieve full hardness. Post-construction requirements include:
Checking flatness, adhesion, and addressing minor defects.
Avoiding contact with water or chemicals during the curing period.
Proper curing to ensure maximum quality and longevity.
PU self-leveling flooring offers several outstanding advantages over traditional flooring, making it a top choice for industrial applications:
High chemical resistance, protecting against acids, alkalis, and solvents.
Excellent load-bearing capacity, suitable for manufacturing plants.
Seamless, easy to clean, ideal for food and healthcare industries.
Resistance to extreme temperatures, preventing shrinkage or cracking.
High elasticity, reducing vibrations and enhancing slip resistance.
With over 10 years of experience in industrial flooring, Nai Phuc Industrial Co., Ltd. is a pioneer in providing high-quality epoxy flooring solutions across various sectors, including factories, warehouses, cleanrooms, hospitals, commercial centers, and major industrial zones.
Equipped with a highly skilled technical team, advanced machinery, and an internationally standardized construction process, Nai Phuc guarantees optimal epoxy flooring solutions that ensure durability, aesthetics, and superior resistance to wear and tear.
Why Choose Nai Phuc?
✅ Expertise and Experience – Nai Phuc's technicians are well-trained and continuously update the latest construction technologies to ensure the highest quality epoxy flooring.
✅ High-Quality Materials – All epoxy coatings used by Nai Phuc are sourced from reputable brands with certified durability and quality. Our precise application process ensures excellent adhesion, chemical resistance, and long-term performance.
✅ Cost-Effective Solutions – Nai Phuc provides top-tier epoxy flooring services at competitive prices. We tailor construction methods to meet client needs, optimizing budget while maintaining the best results.
✅ Long-Term Warranty & Maintenance Support – Nai Phuc guarantees post-construction service, including warranty and prompt maintenance support. Any arising issues during use are quickly addressed for customer peace of mind.
✅ On-Time Completion – Nai Phuc ensures construction is completed within the committed timeframe, preventing disruptions in production or operations. Our professional team and efficient workflow allow for rapid project completion without compromising quality.
Nai Phuc – Trusted Partner for Hundreds of Businesses
Over the years, Nai Phuc has successfully executed hundreds of epoxy flooring projects nationwide, covering key industrial zones, specialized cleanrooms, food processing plants, electronic component factories, and more. Customer satisfaction is the clearest testament to the quality of our services.
Concrete surface preparation before epoxy coating is a crucial step that determines the quality, durability, and lifespan of industrial flooring. Improper surface treatment can lead to peeling, cracking, or premature deterioration, significantly impacting usability and increasing maintenance costs.
Choosing a professional and reputable contractor like Nai Phuc ensures the highest construction quality, adherence to technical standards, and long-term performance. With extensive experience, a standardized construction process, a dedicated expert team, and premium materials, Nai Phuc delivers durable, safe, and cost-effective epoxy flooring solutions.
For professional epoxy flooring services, contact Nai Phuc today for detailed consultation and the best pricing.
NAIPHUC VN CO., LTD
