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UV-Cured Special Modified Acrylic Resin 1200A: The “Invisible Cornerstone” of Precision Coating
In the realm of industrial primers and substrate adhesion enhancement, UV-cured special modified acrylic resin 1200A serves as an innovative solution for MDF primers and metal pretreatment coatings. Its extremely low curing shrinkage, highly flexible film formation, excellent water resistance, and outstanding adhesion to melamine resin coatings and metal substrates inject long-term, stable core value into surface engineering.
With a cured volume shrinkage below 1.5% (ASTM D2566), this resin minimizes internal coating stresses that could lead to cracking or warping. It is ideally suited for high-precision MDF embossed primers and microelectronic metal encapsulations, ensuring the precise replication of intricate textures.
After curing, the film exhibits a Shore A hardness of ≤50, making it as pliable as an elastomer. This elasticity allows the coating to accommodate the thermal expansion and contraction of MDF or the bending of metal substrates, effectively mitigating interface delamination issues.
Modified with hydrophobic groups, the coating achieves a water absorption rate of less than 0.5% (GB/T 1733) and remains free from whitening or blistering even after 240 hours of immersion. This performance makes it an ideal choice for applications in bathroom cabinetry and outdoor metal railings.
Demonstrating an adhesion rating of 5B to melamine resin coatings (ASTM D3359) and a flawless adhesion level (0 rating) on metal substrates (aluminum, steel) via cross-hatch testing, the resin achieves “molecular-level interlocking” without the need for sanding.
From advancing the environmental upgrade of home manufacturing to ensuring the durable protection of industrial metals, UV-cured special modified acrylic resin—with its core attributes of stability, flexibility, resilience, and robust adhesion—redefines the standard for primer performance, enabling a seamless and secure bond between substrates and coatings.
| Parameter | Specification Details |
|---|---|
| Resin type | Special Modified Acrylic Resin 1200A |
| Appearance | Transparent viscous liquid |
| Viscosity (mPa.s) | 18000~30000 (25℃) |
| Functionality | 1 |
| Chrominance (Pt-Co) | ≤80 |
| Acid value (mgKOH/g) | 60~100 |
| Item | Details |
|---|---|
| Packaging | 20/220 (kg) |
| Warranty period | 180 days |
| Storage | This product should be stored and transported in dark opaque steel drums or containers containing corrosion-resistant and solvent resistant coatings. Leave at least 15% space inside the container filled with air. Packaging should be stored in a cool environment below 35 ℃, and exposure to sunlight is strictly prohibited. |
The cured volume shrinkage of Special Modified Acrylic Resin 1200A is extremely low, measuring below 1.5% (ASTM D2566). This minimal shrinkage prevents internal stress within the coating, eliminating the risks of warping, cracking, or surface deformation, which is crucial for high-precision MDF primers and metal coatings.
Upon curing, the resin forms an highly flexible film with a Shore A hardness of ≤50, providing elastomer-like elasticity. This flexibility enables the coating to adapt seamlessly to the thermal expansion, contraction, and physical bending of substrates like MDF and metals, preventing delamination.
Yes, it features excellent water resistance. Due to hydrophobic group modifications, it has a water absorption rate of less than 0.5% (GB/T 1733) and does not whiten or blister even after 240 hours of continuous water immersion, making it suitable for bathroom cabinetry and outdoor metal protective primers.
It exhibits outstanding adhesion without the need for pre-sanding. It achieves an adhesion rating of 5B on melamine resin coatings (ASTM D3359) and a 0 rating (the highest level of adhesion) on metal surfaces like aluminum and steel via cross-hatch testing.
The resin must be stored in dark, opaque, corrosion-resistant steel drums or containers at temperatures below 35°C. At least 15% headspace filled with air must be left inside the container, and direct exposure to sunlight must be strictly avoided to ensure stability.
The viscosity of the Special Modified Acrylic Resin 1200A ranges between 18000 and 30000 mPa.s at 25℃, rendering it a highly stable and structured viscous liquid perfect for industrial coating applications.
