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Crafts Resin/
Overview
ALITA 850 Unsaturated Polyester Resin
Category：Crafts ResinCode：ALITA 850
Applications
ALITA 850 is an orthophthalic unsaturated polyester resin synthesized from phthalic anhydride, maleic anhydride, and standard glycols. Pre-dissolved in cross-linking monomers like styrene, it features low viscosity and low reactivity.
- Properties: Characterized by low shrinkage, excellent toughness, high whiteness, and minimal occurrence of water streaks.
- Applications: Versatile for general resin crafts and also suitable for stone repair.
Specifications
| Inspection Item | Standard Range | Unit | Test Method |
|---|---|---|---|
| Appearance | Light Blue-Green/Blue Transparent Liquid | -- | -- |
| Acid Value | 16 - 23 | mgKOH/g | GB/T 2895-2008 |
| Viscosity (25℃) | 0.21 - 0.39 | Pa.s | GB/T 7193-2008 |
| Solid Content | 57 - 64 | % | GB/T 7193-2008 |
| Thermal Stability (80°C) | ≥ 24 | h | GB/T 7193-2008 |
| Gel Time (25℃) | 4 - 7 | min | GB/T 7193-2008 |
Note: Tested at 25℃ water bath, 50g resin + 0.5g Akzo M-50 curing agent.
Properties
| Inspection Item | Typical Value | Unit | Test Method |
|---|---|---|---|
| Appearance | Defect-free casting | -- | -- |
| Barcol Hardness | 32 | -- | GB/T 3854-2005 |
| HDT | 45 | ℃ | GB/T 1634-2004 |
| Elongation at Break | 10 | % | GB/T 2567-2008 |
| Tensile Strength | 45 | MPa | GB/T 2567-2008 |
| Tensile Modulus | 2300 | MPa | GB/T 2567-2008 |
| Flexural Strength | 75 | MPa | GB/T 2567-2008 |
| Flexural Modulus | 2200 | MPa | GB/T 2567-2008 |
Usage Instructions
1. Composition: ALITA 850 contains wax and catalysts (pre-accelerated).
2. Selection: This resin is suitable for general crafts. For premium crafts like imitation crystal or frosted glass, ALITA 853 is recommended.
Storage & Handling
- Safety: Contains components that may be harmful if mishandled. Use protective equipment.
- Temp: Keep below 25℃ (77℉) in a stable environment.
- Incompatibility: Away from direct sunlight and heat sources. Keep sealed.
- Management: Follow "FIFO" principle.