Ever Ray
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Polyurethane Acrylate 7901B stands as a benchmark in UV vacuum metallization topcoats, UV inks, and vibration-resistant wear coatings. With its fast curing speed, exceptional hardness, reliable RCA wear resistance, scratch prevention, anti-yellowing traits, and balanced toughness, it provides advanced industrial products with an invisible armor that seamlessly integrates aesthetics with ultimate functionality.
Achieves deep crosslinking within 3 seconds under UV exposure (energy density ≥100mJ/cm²). Perfect for automated production lines, improving production efficiency by 40%.
Offers a surface hardness of 4H (pencil hardness) and RCA wear resistance of ≥300 cycles (175g load). Protects laptop casings and smart wearables from heavy friction.
Utilizes nano-scale inorganic hybrid tech to achieve Mohs hardness >3. Synergistic UV stabilizers maintain a color difference ΔE <1.5 after 1000h QUV aging.
Controls elastic modulus between 500-800 MPa, combining 3H hardness with a 5% elongation at break, keeping foldable screen hinges crack-free under impact.
| Parameter | Standard Value / Property |
|---|---|
| Resin Type | Polyurethane Acrylate 7901B |
| Appearance | Transparent viscous liquid |
| Viscosity (mPa.s) | 6000~12000 (at 60℃) |
| Functionality | 9 |
| Chrominance (Pt-Co) | ≤60 |
| Acid value (mgKOH/g) | 0 |
This resin is extensively engineered for industrial settings demanding high visual aesthetics combined with durable mechanical performance. Typical applications include:
Primary Uses: UV vacuum electroplating, UV screen/offset printing inks, and protective UV topcoats.
| Packaging Specifications | 20 kg / 220 kg drum sizes |
| Warranty Period | 180 Days |
| Storage Conditions | Store and transport in dark, opaque steel drums or containers with corrosion-resistant and solvent-resistant internal coatings. Keep a minimum of 15% headspace filled with air inside the container. Always store in a cool environment below 35℃. Exposure to direct sunlight is strictly prohibited. |
Application Detail 1
Application Detail 2
It is primarily designed for high-performance industrial coatings, specifically UV vacuum metallization/electroplating topcoats, high-efficiency UV inks, and protective UV coatings for consumer electronics and automotive interiors.
The resin achieves deep crosslinking inside 3 seconds when exposed to an energy density ≥100mJ/cm². This makes it perfectly compatible with rapid automated spray or roll coating assembly lines.
With a surface pencil hardness of 4H, a Mohs hardness >3, and RCA wear resistance rated at ≥300 cycles (under a 175g load), it provides outstanding physical durability against friction and scratch damage.
Yes. Utilizing nano-scale inorganic hybrid tech along with synergistic UV stabilizers, it maintains a color difference value of ΔE <1.5 even after 1000 hours of intensive QUV aging, resisting yellowing and degradation.
Keep the material stored in dark, opaque steel drums below 35℃. Ensure at least 15% headspace filled with air remains inside the container to prevent premature polymerization. Keep away from direct sunlight.
No. Despite its 4H surface hardness, the formula maintains a precisely tuned elastic modulus of 500-800 MPa and an elongation at break of 5%. This offers a balance of stiffness and elasticity, ideal for flexible joints and high-impact parts.
