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Hand Lay-up Resin/
Overview
ALITA 191 Orthophthalic Unsaturated Polyester Resin
Category：Hand Lay-up ResinCode：ALITA 191
Applications
ALITA 191 is an orthophthalic-based general-purpose unsaturated polyester resin with medium viscosity and medium reactivity.
- Features: Low viscosity, excellent mechanical properties, high elongation, fast post-curing speed, and exceptional versatility.
- Applications: Ideal for manufacturing various FRP products, such as translucent tiles (skylight panels) and ventilation ducts.
Specifications
| Inspection Items | Indicator Range | Unit | Test Method |
|---|---|---|---|
| Appearance | Light yellow transparent viscous liquid | -- | -- |
| Acid Value | 19 - 25 | mgKOH/g | GB/T 2895-2008 |
| Viscosity (25℃) | 0.30 - 0.60 | Pa·s | GB/T 7193-2008 |
| Solid Content | 59 - 65 | % | GB/T 7193-2008 |
| Thermal Stability (80°C) | ≥ 24 | h | GB/T 7193-2008 |
| Gel Time (25℃) | 6 - 18 | min | GB/T 7193-2008 |
Note: GT test system: Accelerator (0.6% Co/Naph) 2%; Curing Agent (Nouryon M-50) 2%.
Properties
| Inspection Items | Typical Casting Value | Typical FRP Value | Unit |
|---|---|---|---|
| Barcol Hardness | 42 | 64 | -- |
| HDT | 60 | -- | ℃ |
| Elongation at Break | 2.2 | -- | % |
| Tensile Strength | 60 | 320 | MPa |
| Tensile Modulus | 3800 | 16000 | MPa |
| Flexural Strength | 110 | 300 | MPa |
| Flexural Modulus | 3800 | 17000 | MPa |
Usage Instructions
1. Composition: ALITA 191 resin contains wax but does not contain accelerator or thixotropic agent. Incubate with accelerator before use.
2. Process Recommendations: * Casting Cure: Recommended 0.5% cobalt accelerator and 2.0% M-50 curing agent. Post-curing system: RT 24h + 60℃ 2h + 80℃ 2h.
- FRP Cure: Post-curing system: RT 24h + 60℃ 3h + 110℃ 3h.
3. Selection Recommendation: For applications requiring extremely high toughness or food-grade requirements, ALITA 196 resin is recommended.
Storage & Handling
- Safety Protection: Resin ingredients can be harmful; avoid contact with skin and eyes. Wear protective clothing and equipment.
- Storage Temperature: Strongly recommended to store in a stable environment below 25℃ (77℉), away from direct sunlight and steam pipes.
- Environmental Requirements: No outdoor storage to prevent moisture contamination. Keep sealed to reduce monomer (styrene) loss.
- Management: Follow the "FIFO" principle for inventory turnover.