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Overview
ALITA 191ETP Thixotropic Pre-accelerated Polyester Resin
Overview
ALITA 191ETP is a general-purpose orthophthalic unsaturated polyester resin. It is characterized by its thixotropic nature and is pre-accelerated for maximum ease of use in manual and winding laminating lines. The resin contains wax to optimize surface curing properties and reduce tackiness.
Features
- Excellent Water Resistance: Designed to withstand long-term moisture exposure and prevent hydrolysis.
- High Mechanical Strength: Offers superior structural integrity, tensile stiffness, and bending strength.
- High Elongation at Break: Exceptional elongation of 3.8% provides reliable flexibility and impact energy absorption.
- Processing Optimized: Superior thixotropic properties protect vertical or curved molds from resin run-off.
Usage Instructions
Highly suitable for hand lay-up, spray-up, and filament winding processes. Widely used in the manufacturing of GRP pipes, industrial storage tanks, water vessels, and various other fiberglass reinforced plastic products.
Specifications
| Appearance | Purple-red turbid liquid |
| Viscosity @25°C | 0.3 - 0.6 Pa·s |
| Thixotropic Index | ≥ 1.5 |
| Gel Time | 15.0 - 50.0 min |
| Acid Value | 14.0 - 20.0 mgKOH/g |
| Solid Content | 54.0 - 60.0 % |
Note: Gel Time Measured using the glass rod method with 100g resin and 1.5g M-50 (MEKP).
Properties
| Tensile Strength | 75 MPa |
| Tensile Modulus | 3700 MPa |
| Elongation at Break | 3.8 % |
| Flexural Strength | 135 MPa |
| Flexural Modulus | 3700 MPa |
| Heat Deflection Temp (HDT) | 70 °C |
| Barcol Hardness | 42 |
Note: Samples prepared with 1.0% Akzo Nobel M-50. Post-cure program: Room Temp × 24h + 60°C × 3h + 100°C × 2h.
Storage & Handling
- Storage Conditions: Store below 25°C in a cool, shaded environment. Keep away from fire, heat sources, and strong radiation. Ensure containers remain tightly sealed to prevent styrene monomer loss.
- Shelf Life: 3 months under recommended conditions.
- Safety Notice: Read the Safety Data Sheet (SDS) thoroughly before handling. Wear appropriate protective clothing and gloves.
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