Viscosity Resin 203 (CAS 26678-93-3): Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
Viscosity Resin 203 (CAS 26678-93-3) is an epoxy-based thermosetting polymer engineered for high-performance industrial applications. Key parameters:
| Parameter | Value |
|---|---|
| CAS Number | 26678-93-3 |
| Viscosity @25°C | 12,000-15,000 mPa·s |
| Density | 1.15-1.20 g/cm³ |
| Cure Time | 4-6 hours @80°C |
Competitive Comparison
| Feature | Resin 203 | Resin 205 | Resin 210 |
|---|---|---|---|
| Viscosity Range | 12-15k mPa·s | 8-10k mPa·s | 18-22k mPa·s |
| Thermal Resistance | -40°C to 180°C | -30°C to 160°C | -50°C to 200°C |
2. Key Applications & Use Cases
Industrial Coatings
Provides corrosion resistance in marine environments with 98% salt spray resistance (ASTM B117).
Composite Manufacturing
Used in carbon fiber reinforcement with 25% higher interlaminar shear strength than standard resins.
Electronic Encapsulation
UL94 V-0 flammability rating protects PCB assemblies in automotive electronics.
3. Performance Comparison
Resin 203 demonstrates superior chemical resistance versus alternatives:
- 30% longer sulfuric acid resistance vs. Resin 205
- 15% better adhesion on aluminum substrates
4. Step-by-Step Usage Guidelines
- Surface Preparation: Clean substrates with ISO 12944-4 standards
- Mixing Ratio: 100:28 resin/hardener by weight
- Curing Cycle: 2 hours @65°C + 2 hours @80°C
5. Real-World Customer Case Studies
Case 1: Automotive OEM
Challenge: Reduce coating defects in engine components
Solution: Implemented Resin 203 with automated dispensing
Result: 40% reduction in coating rejects
Case 2: Wind Turbine Manufacturer
Challenge: Improve composite blade durability
Solution: Vacuum infusion with Resin 203
Result: 18% increase in fatigue life
6. Contact for Custom Solutions
Optimize your formulation with our technical team:
Email: info@vivalr.com
Phone: (86) 15866781826
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