High-Quality 7901B UV-resin for industrial coatings Factory, Products
Product Description
Description
In the high-performance arena of surface engineering, Polyurethane Acrylate 7901B stands as a benchmark in UV vacuum metallization topcoats, UV inks, and vibration-resistant wear coatings. With its fast curing, high hardness, exceptional RCA wear resistance, scratch resistance, anti-yellowing properties, and balanced toughness, it provides products with an invisible armor that seamlessly integrates aesthetics with functionality.
Ultra-Fast Curing: A Revolution in Efficiency
Under UV exposure, deep crosslinking is completed within 3 seconds (at an energy density ≥100mJ/cm²), making it ideal for high-speed roll coating and automated production lines. It improves production efficiency by 40% while reducing unit energy consumption by 25%, particularly benefiting vacuum-metallized smartphone housings and high-volume 3C product UV printing.
Hardness & Wear Resistance: Extreme Challenges
With a surface hardness of 4H (pencil hardness) and RCA wear resistance of ≥300 cycles (175g load), 7901B significantly outperforms standard coatings. It easily withstands key scratches and dust abrasion, ensuring long-lasting durability for laptop casings and smart wearable devices.
Scratch Resistance & Anti-Yellowing: Flawless
Leveraging nano-scale inorganic hybrid technology, it achieves a Mohs hardness >3, enhancing scratch resistance by 50%. With synergistic UV stabilizers, it maintains a color difference ΔE <1.5 even after 1000 hours of QUV aging, keeping white home appliances and automotive interiors pristine and free from yellowing.
Balanced Toughness: Strength with Flexibility
With precisely controlled elastic modulus (500-800 MPa), it balances 3H hardness with a 5% elongation at break (ASTM D638), making it ideal for vacuum-metallized foldable screen hinges and vibration-resistant automotive grille coatings, ensuring crack-free resilience under high-frequency impacts.
From brilliant vacuum-metallized components to wear-resistant coatings in extreme environments, 7901B redefines industrial coating reliability. With its fast, hard, tough, stable, and pristine performance, it ensures that technology and aesthetics coexist seamlessly under the test of time.
Technical Features
| Resin type | Polyurethane Acrylate 7901B |
|---|---|
| Appearance | Transparent viscous liquid |
| Viscosity (mPa.s) | 6000~12000 (60℃) |
| Functionality | 9 |
| Chrominance (Pt-Co) | ≤60 |
| Acid value (mgKOH/g) | 0 |
Key Performance
- Fast curing
- High hardness
- Exceptional RCA wear resistance
- Scratch resistance
- Anti-yellowing properties
- Balanced toughness
Applications
Packaging, Warranty & Storage
| Packaging | 20 / 220 (kg) |
|---|---|
| Warranty Period | 180 days |
| Storage Conditions | 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. |
Detail Images
Frequently Asked Questions (FAQ)
It is mainly utilized in UV vacuum electroplating/metallization topcoats, high-performance UV inks, and durable UV coatings for consumer electronics and automotive parts.
It achieves deep crosslinking within 3 seconds under UV exposure at an energy density ≥100mJ/cm², enabling accelerated automated production cycles.
The cured film provides a pencil hardness of up to 4H and RCA wear resistance of ≥300 cycles under a 175g load, with a Mohs hardness >3.
Equipped with synergistic UV stabilizers, it exhibits outstanding anti-yellowing performance with a color difference ΔE <1.5 after 1000 hours of standard QUV accelerated weathering tests.
The warranty period is 180 days. Keep in dark opaque steel containers below 35 ℃ away from sunlight, ensuring at least 15% headspace filled with air inside the drum.
