Advanced Polymer Materials

High-Quality Pu Epoxy Coating Manufacturer & Product Portfolio

Pioneering High-Performance Polyurethane (PU) & Epoxy Acrylate Oligomers for Custom UV-Curable Formulations and Industrial Applications

The Global Evolution of PU-Epoxy Hybrid Systems in Protective Coatings

Synthesizing toughness, elasticity, and rapid polymerization kinetics to address modern VOC compliance and mechanical demands.

Transitioning from Solvent-Borne Systems to Radiation-Cured Oligomers

Global ecological regulations, notably European REACH and US EPA standards, have forced a structural shift from high-VOC solvent-borne polymers to ultraviolet (UV) and electron beam (EB) crosslinkable formulations. The integration of polyurethane acrylates (PUA) and epoxy acrylates (EA) serves as the technological vanguard of this transition. By coupling the extreme surface hardness and chemical inertness of bisphenol-based epoxies with the robust elasticity, elongation, and impact tolerance of polyurethane networks, engineers can design coatings that cure in milliseconds without release of volatile atmospheric contaminants.

This synergistic approach overcomes the classic trade-off in polymer physics: the balance between high tensile strength (rigidity) and strain tolerance (ductility). As industrial applications demand faster throughput cycles, UV-curable PU and Epoxy oligomers provide the raw materials required for instant handling and downstream processing, radically increasing operational efficiency across automated production lines.

Everay Lab Evaluation and Testing Center

Under the Hood: Understanding Oligomer Chemistry

Optimizing chemical functionality, molecular weight distribution, and double-bond density for specific coating properties.

Epoxy Acrylate Chemistry

Derived primarily from the reaction of bisphenol A diglycidyl ether with acrylic acid, epoxy acrylates form the bedrock of rigid UV coatings. The aromatic rings in the polymer backbone afford exceptional structural stiffness, chemical resistance, and high gloss. Products like 9105A-80 maximize these properties, proving indispensable for heavy-duty metal varnishes, PCB solder resists, and overprint varnishes where scratch protection is paramount.

Aliphatic vs. Aromatic PUA

Polyurethane acrylates are categorized by their diisocyanate structure. Aliphatic PUA (e.g., Model 72027 and PUA 7291B) offers unmatched weatherability, non-yellowing characteristics, and UV light stability, ideal for outdoor automotive and optical films. Conversely, aromatic PUA (e.g., Aromatic PA 7162) delivers high-speed curing and enhanced mechanical properties at a more competitive cost, optimized for indoor wood and plastic finishes.

Photo-Thermal Dual Curing

To eliminate the issue of shadowing—where complex three-dimensional geometries block UV light exposure—dual-cure technology utilizes both photochemical and thermal mechanisms. Oligomers like 72017 are engineered to undergo rapid free-radical polymerization under UV light followed by a secondary thermal cross-linking step, guaranteeing complete polymer conversion in shaded areas, a necessity for precision 3D printing and complex electronics assembly.

About Guangdong Ever Ray Environmental Material Co., Ltd.

Established in 2006, we are a premier high-tech enterprise focusing on the R&D and manufacturing of oligomers for UV curable resin.

Guangdong Ever Ray Patents and R&D Capabilities

Our comprehensive chemical portfolio encompasses epoxy acrylates, polyurethane acrylates (waterborne, aliphatic urethane, and aromatic urethane versions), polyester acrylates, pure acrylates, and a wide array of specialized functional modified acrylate oligomers. Over nearly two decades of operation, we have maintained a core commitment to bridging the gap between high product functionality and economic optimization, helping industrial coating formulators minimize cost while maximizing end-user performance.

Productive Capacity & Quality Control Infrastructure

Guangdong Ever Ray operates two state-of-the-art production bases in Southern China:

  • Jiangmen Production Base: Over 10,000 square meters dedicated to targeted synthesis, specialized custom batch production, and advanced laboratory evaluation.
  • Yunfu Production Base: Over 40,000 square meters of high-capacity automated production lines, incorporating sophisticated logistics, bulk storage, and automated material handling.
  • Capacity and Systems: Combined annual output exceeds 20,000 metric tons across 10+ operational chemical synthesis lines. Production safety, consistency, and ecological stewardship are maintained via full DCS computerized control systems alongside ISO9001 and ISO14001 certification.

State-of-the-Art Production & Laboratory Facilities

2006
Established Year
50,000+
Production Area (Sqm)
20,000+
Annual Capacity (Tons)
10+
Invention Patents

Global Commercial Dynamics & Compliance Landscapes

Ensuring supply-chain stability and stringent regulatory alignment across the Americas, Europe, and Asia-Pacific.

In the globalized chemical landscape, manufacturers of polyurethane (PU) and epoxy coatings face complex compliance matrices. Between regulatory frameworks like REACH, TSCA, and RoHS, and volatile feed-stock pricing, securing a reliable supply of monomeric raw materials and synthesized oligomers is critical to B2B business continuity. At Guangdong Ever Ray, we secure our supply chains through strategic backward integration and raw material sourcing agreements with leading domestic and multinational suppliers. This guarantees that our syntheses—whether aliphatic urethane acrylates, epoxy acrylates, or custom modified resins—maintain consistent composition, minimal batch-to-batch variations, and a predictable cost structure.

Additionally, our Yunfu base utilizes an automated DCS (Distributed Control System). This digital infrastructure continuously monitors key reaction metrics—such as addition temperatures, acid values, viscosity profiles, and monomer conversions—in real-time. By minimizing manual interventions, we reduce errors, eliminate physical bottlenecks, and consistently deliver UV-curable products that conform to strict commercial specifications.

Compliance Check-points

  • Low Volatile Organic Compounds (VOC): Fully solvent-free (100% solids) oligomer options to satisfy environmental air quality standards.
  • Heavy Metal Compliance: All products are free of lead, mercury, hexavalent chromium, and polybrominated biphenyls under RoHS directives.
  • REACH Registration Compatibility: Ensuring raw material streams comply with European imports.
  • Advanced Safety: Full Safety Data Sheet (SDS) documentation according to GHS standards provided for all global shipments.

Targeted Applications of PU-Epoxy Systems

Tailoring molecular design to address critical performance challenges across diverse industries.

High-End Wood & Furniture Coatings

Traditional wood varnishes suffer from slow curing speeds and susceptibility to household chemical spills. Formulators utilizing our 7296C UV resin achieve high solvent-resistant and abrasion-resistant finishes. These systems can be applied via roller or spray, curing in seconds under standard UV mercury lamps to form a highly crosslinked, elegant protective layer that retains the natural look of wood.

Flexible Floor Coatings (PVC & Resilient Materials)

PVC flooring requires coatings that can withstand continuous mechanical loads and foot traffic without cracking or peeling. Low viscosity oligomers like 1262B are specifically formulated for PVC floor coatings. Their high reactivity and low viscosity allow for thin, even application without solvent dilution, providing a tough, elastomeric surface that protects against micro-scratching.

High-Resolution Offset & Packaging Inks

For modern, high-speed offset printing presses, quick drying times and low-odor profiles are critical, especially in consumer packaging. Using a combination of Polyester Acrylate 5335F and A150 UV resin, ink formulators can achieve rapid pigment wet-out, excellent rheology, high gloss, and instant curing, ensuring high-speed production with zero ink offset.

Technology Roadmap: Pioneering the Next Generation of Eco-Friendly Polymers

How Guangdong Ever Ray is investing in bio-based materials and advanced curing systems to support a carbon-neutral future.

As the global coating industry aligns with decarbonization goals, the development of sustainable, bio-based UV oligomers is a primary focus. Our R&D team—comprising over 15 skilled polymer chemists and technicians—is currently developing bio-sourced intermediates to partially replace petroleum-derived adipic acid and diisocyanates in our polyurethane synthesis processes. By introducing renewable carbon content without compromising double-bond density or curing efficiency, we help formulators reduce their carbon footprint.

Furthermore, our development pathway includes expanding our waterborne UV polyurethane dispersion (UV-PUD) product lines. Waterborne UV systems combine the environmental benefits of water-based coatings (extremely low viscosity without reactive monomers) with the physical performance of traditional UV systems. This is particularly beneficial for applications like nail gels (7296C, Anti-Yellowing Oligomer) and sensitive plastic applications where monomer contact must be minimized.

Future Development Goals

  • Bio-Content Target: Achieving up to 35% bio-based carbon index in aliphatic PUA systems by 2026.
  • Dual-Cure Technology Expansion: Designing oligomers optimized for low-temperature thermal curing down to 80°C.
  • LED-UV Curing Efficiency: Optimizing oligomers for absorption spectrum matching with 365nm and 395nm LED light sources, reducing energy requirements by up to 50% compared to traditional mercury arc lamps.

Frequently Asked Questions: PU & Epoxy Coating Formulations

Technical solutions to common challenges faced by industrial formulators and chemical purchasing directors.

Q: What is the main structural difference between Epoxy Acrylate and Polyurethane Acrylate (PUA)?
A: Epoxy acrylates are typically aromatic, bisphenol A-derived structures that offer very high hardness, chemical resistance, and rapid cure rates, but limited flexibility. Polyurethane acrylates incorporate urethane linkages which introduce flexibility, impact resistance, and elongation. Aliphatic PUA also offers exceptional non-yellowing and weatherability performance compared to epoxy acrylates.
Q: How do you prevent yellowing in outdoor coating applications?
A: Formulators should specify aliphatic polyurethane acrylates (such as Model 72027 or PUA 7291B) rather than aromatic resins. Aliphatic structures lack the light-absorbing conjugated aromatic rings that degrade and yellow when exposed to solar UV radiation. Adding appropriate UV stabilizers and hindered amine light stabilizers (HALS) further extends this protection.
Q: How does the DCS computerized control system guarantee product quality?
A: Our Distributed Control System (DCS) continuously monitors temperature, raw material flow, addition rates, and pressure during synthesis. By automating the reaction parameters, we minimize human error, reduce batch-to-batch variation, and maintain high product consistency across both the Jiangmen and Yunfu production plants.
Q: Can waterborne UV coatings match the performance of 100% solid UV coatings?
A: Yes, waterborne UV polyurethane dispersions (UV-PUDs) offer excellent film-forming properties prior to cure, allowing for uniform coatings on complex surfaces without the use of monomeric diluents. Once the water is evaporated and the film is UV-cured, it forms a high-performance crosslinked network with comparable scratch and chemical resistance to traditional solvent-free coatings.
Q: How does oligomer viscosity affect coating application methods?
A: Viscosity dictates the application method. High viscosity resins (like unmodified bisphenol A epoxy acrylates) must be heated or cut with reactive monomer diluents (e.g., TPGDA, TMPTA) for spray or roll coating. Low-viscosity resins, such as 1262B, are engineered to allow application with minimal monomer dilution, helping formulators maintain low shrinkage and comply with strict safety standards.
Q: How does dual-curing work for 3D printing and shaded electronic coatings?
A: In dual-cure systems, like those utilizing our 72017 resin, the material undergoes a two-stage reaction: an initial UV-induced radical polymerization for fast setting, and a secondary thermal reaction that cures shaded areas where UV light cannot reach. This guarantees consistent crosslinking and mechanical performance across complex, three-dimensional parts.