Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Ashland Aropol M105 Unsaturated Polyester Resin

Ashland Aropol M105 is a high-performance unsaturated polyester resin from Ashland’s Aropol series, engineered for excellent mechanical strength, chemical resistance and fast gel time in fiberglass-reinforced composites, pultrusion and casting applications. It offers balanced viscosity, good wet-out and superior cure response with MEKP initiators.
  • ashland aropol m105 unsaturated polyester resin_d62e8466
  • ashland aropol m105 unsaturated polyester resin_d62e8466

Features Of Ashland Aropol M105 Unsaturated Polyester Resin

  1. Excellent mechanical strength and dimensional stability after curing.

  2. Good chemical resistance to dilute acids, alkalis, and common solvents.

  3. Low viscosity for easy handling, improved fiber wet-out, and efficient processing.

  4. Consistent reactivity profile enabling reliable gel time control with standard MEKP initiators.

  5. Formulated for high clarity and low color development in cast and laminated applications.

Typical Applications Of Ashland Aropol M105 Unsaturated Polyester Resin

  1. Fiberglass-reinforced plastic (FRP) tanks and vessels for corrosion-resistant storage.

  2. Industrial flooring systems requiring chemical and abrasion resistance.

  3. Marine components including decks, hulls, and structural panels.

  4. Automotive under-hood and exterior composite parts.

  5. Electrical insulation components such as busway covers and switchgear enclosures.

Specifications Of Ashland Aropol M105 Unsaturated Polyester Resin

Chemical TypeUnsaturated polyester resin (orthophthalic)
Product FormLiquid
AppearanceClear, pale yellow liquid
Viscosity (25°C)350–450 mPa·s
Reactive DiluentStyrene (~38–42 wt%)
Gel Time (with 1.0% MEKP, 25°C)Approx. 12–18 minutes
Solid Content~58–62 wt%
Density (25°C)1.09–1.12 g/cm³


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