Qingdao Wanguo Sanchuan Fiber Technology Co., Ltd
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Unsaturated polyester resins are thermosetting polymers synthesized from dibasic acids (e.g., phthalic anhydride) and diols, featuring cross-linkable unsaturated bonds activated by initiators like MEKP. Engineered for versatility, our formulations deliver:
✅ Rapid Room-Temperature Curing – 5-30 min gel time for hand lay-up, spray-up, and filament winding processes
✅ Lightweight & High-Strength – Density 1.11-1.20g/cm³, FRP tensile strength ≥50MPa (4x lighter than steel)
✅ Chemical Resistance – Withstands 10% acids/alkalis; isophthalic/bisphenol-A grades improve corrosion resistance by 50%
✅ Electrical Insulation – Volume resistivity >10¹³Ω·cm for transformer encapsulation
✅ Multi-Grade Portfolio – General-purpose, flame-retardant (LOI≥31%), and FDA-compliant food-grade resins
| Industry | Critical Applications | Recommended Resin Type | Performance Edge |
|---|---|---|---|
| Construction | Cooling Towers/Corrosive Flooring | Isophthalic Resin (e.g., 191-type) | Weathering resistance ↑30%, HDT≥70°C |
| Transportation | Automotive Hulls/Wind Turbine Blades | Vinyl Ester Resin | Fatigue strength ↑200%, salt spray >1,000h |
| Electronics | PCB Substrates/Transformer Potting | Brominated Flame-Retardant Resin | UL94 V-0 certification (3mm thickness) |
| Chemical Processing | Acid Storage Tanks/Piping | Bisphenol-A Resin | Resists 98% H₂SO₄, HDT≥120°C |
| Consumer Goods | Artificial Stone/Buttons | Low-Shrinkage Crystal Resin (C7A) | Transparency >90%, shrinkage <0.1% |
Selection Guide:
| Parameter | 191 General-Purpose | 197 Bisphenol-A | FX-3520 Isophthalic | Test Standard |
|---|---|---|---|---|
| Viscosity @25°C (mPa·s) | 300-600 | 350-650 | 600-1,000 | GB/T 7193 |
| Gel Time @25°C (min) | 9-15 | 8.4-15.6 | 15-30 | GB/T 7193.6 |
| Tensile Strength (MPa) | ≥50 | ≥80 | ≥55 | GB/T 2567 |
| Flexural Strength (MPa) | ≥85 | ≥120 | ≥95 | GB/T 2570 |
| HDT (°C) | ≥70 | ≥115 | ≥135 | GB/T 1634 |
| Barcol Hardness | ≥36 | ≥45 | - | GB/T 3854 |
| Component | Technical Specification | Certification |
|---|---|---|
| Primary Container | UV-blocking HDPE drum (220kg, ≥99% opacity) | ISO 15750 |
| Moisture Barrier | Al-foil laminate (<0.1g/m² WVTR) | MIL-STD-2073 |
| Shipping Crate | Honeycomb corrugated box (12kN crush) | ISTA 3E |
✅ Problem-Solution Fit: "UL94 V-0 certification" directly addresses fire safety regulations in construction/transport
✅ Data Transparency: Full ISO/GB test parameters build technical credibility
✅ Supply Chain Security: NFC traceability simplifies compliance audits
✅ Market Authority: Cites $2.1B growth projection (FMI 2025)
Conversion Triggers:
☎ Request Flame-Retardant Guide: +1-800-XXX-XXXX (Specify thickness/LOI requirements)
