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Crafts Resin/
Overview
ALITA 6687 Orthophthalic Pre-accelerated Unsaturated Polyester Resin
Category：Crafts ResinCode：ALITA 6687
Overview
ALITA 6687 is an orthophthalic pre-accelerated unsaturated polyester resin synthesized from phthalic anhydride, maleic anhydride, and standard glycols. Pre-dissolved in styrene monomer, it features low viscosity and moderate reactivity, serving as the ideal base material for high-quality handicraft production.
Features
- Low Shrinkage: Minimizes water rippling, cracking, and warp for excellent surface finish.
- Aesthetic Quality: High whiteness and crystal clarity in finished castings.
- Enhanced Toughness: High elongation of 10% ensures great mechanical toughness and impact resistance.
Usage Instructions
Optimized for general resin crafts casting, artificial stone decorations, and stone crack repair or grouting.
Specifications
| Appearance | Light green/blue transparent liquid |
| Viscosity @25°C | 210 - 390 mPa·s |
| Acid Value | 16.0 - 23.0 mgKOH/g |
| Solid Content | 57.0 - 64.0 % |
| Gel Time | 4.0 - 7.0 min |
| Thermal Stability (80°C) | ≥ 24 h |
Note: Gel time tested with 50g resin and 0.5g Akzo Nobel M-50 in a 25°C water bath.
Properties
| Tensile Strength | 45 MPa |
| Tensile Modulus | 2300 MPa |
| Elongation at Break | 10.0 % |
| Flexural Strength | 75 MPa |
| Flexural Modulus | 2200 MPa |
| Heat Distortion Temp (HDT) | 45 °C |
| Barcol Hardness | 32 |
| Casting Appearance | Defect-free |
Note: Casting prepared according to Q/320411 BES002-2014.
Storage & Handling
- Storage: Store below 25°C in a cool, ventilated indoor area, away from direct sunlight and fire. Shelf life is 3 months under standard conditions (1.5 months if stored above 30°C).
- Safety: Class 3 flammable liquid. Wear protective gear to avoid skin/eye contact. Dispose of waste in accordance with national regulations.
- Packaging: 220kg net weight metal drums.