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High reactivity with standard MEKP initiators for rapid room-temperature cure.
Excellent mechanical strength and dimensional stability after curing.
Good resistance to water, alkalis, and mild acids in cured form.
Low viscosity enables easy handling, wet-out of reinforcements, and air release.
Formulated for consistent performance in sheet molding compound (SMC) and bulk molding compound (BMC) processes.
Automotive exterior and structural components (e.g., body panels, under-hood parts).
Industrial enclosures and electrical housings requiring flame-retardant properties.
Building and construction products including roofing tiles and façade elements.
Transportation interiors and semi-structural parts for rail and bus applications.
Marine deck and hull components where moisture resistance and stiffness are critical.
| Chemical Type | Unsaturated polyester resin (orthophthalic-based) |
| Product Form | Liquid, ready-to-use |
| Appearance | Clear to pale yellow viscous liquid |
| Viscosity (25°C, mPa·s) | 450–650 |
| Acid Value (mg KOH/g) | 18–24 |
| Gel Time (with 1.0% MEKP, 25°C, min) | 12–18 |
| Solid Content (% w/w) | 99.5–100.0 |
| Styrene Content (% w/w) | 38–42 |
Q1: What is the primary application profile for MODAR 130F-70?
A: MODAR 130F-70 is a low-viscosity, fast-curing unsaturated polyester resin specifically formulated for high-performance composite applications such as pultrusion, filament winding, and reinforced thermoset molding—particularly where enhanced mechanical properties and consistent processability are required.
Q2: How does MODAR 130F-70 differ from standard orthophthalic resins?
A: MODAR 130F-70 features a modified isophthalic-based backbone, offering improved hydrolytic stability, higher heat distortion temperature, and better resistance to chemical exposure compared to conventional orthophthalic resins—without requiring significant reformulation of existing processing parameters.
Q3: What types of initiators and accelerators are compatible with this resin?
A: MODAR 130F-70 is compatible with standard organic peroxides such as MEKP and BPO, and responds well to cobalt-based accelerators. Cure profiles can be adjusted across a broad temperature range, supporting both ambient and elevated-temperature processing depending on system design and performance requirements.
Q4: Can MODAR 130F-70 be blended with other resins or additives?
A: Yes—this resin demonstrates good compatibility with common fillers, thixotropic agents, and flame-retardant additives. Blending with vinyl ester resins is possible for hybrid formulations, though compatibility testing under intended processing conditions is recommended to ensure phase stability and final property retention.
Q5: What storage conditions are recommended to maintain optimal performance?
A: Store in original sealed containers at temperatures between 15°C and 25°C, away from direct sunlight and sources of heat or ignition. Prolonged exposure to temperatures above 30°C may reduce shelf life, and freezing should be avoided to prevent potential phase separation or viscosity changes.
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