**Product Name: HS-1520 Unsaturated Polyester Resin**
1. **Brief Introduction:**HS-1520 is a top-tier NPGl type unsaturated polyester resin meticulously crafted for SMC/BMC applications.This resin boasts high reactivity, low viscosity, and outstanding coloring and thickening properties, ensuring superior performance.
The product's surface is impeccably flat, offering a high-gloss finish that significantly enhances the final product's visual appeal.Exhibiting excellent water and heat resistance, remarkable mechanical strength, and impressive electrical performance,
HS-1520 finds extensive use within the automotive industry.Components crafted using this resin technology yield carbon fiber SMC structural composites with exceptional mechanical properties, achieving mass reduction, lower tooling costs, noise reduction, along with heat and corrosion resistance.
HS-1520resin system is ideal for structural applications.
2. **Technical Data Sheet for Liquid Resin:**
**Note:**
* SPI: 2% BPO paste.
3. **Physical Properties of Casting** (for reference only):
**Note:**
1) Method for making of cured performed as GB/T 8237, Curing system: 0.6% Co-Naph: 1.5%,
AKZO M-50: 1.5%;
2) Post-cure: room temperature×24h + 60ºC×3h + 110ºC×2h.
4. **Storage:**
This product should be stored in a cool, dry place not exceeding25 ºCto avoid exposure to fires, heat sources,and must be kept sealed to prevent the intrusion of moisture, monomers, and volatile substances. For long-term storage under ambient conditions at 25 ºC, the shelf life is 6 months.