Aropol™ unsaturated polyester resins

Aropol unsaturated polyester resins can be utilized in a wide range of manufacturing processes such as open mold laminating, bulk molding compounding, sheet molding compounding, resin transfer molding, pultrusion and infusion.

Aropol resin technology provides high mechanical and impact properties and good surface profiling. Aropol resins can be customized to meet fabricators needs for varying reactivity, viscosity, gel time and exotherms.

Explore other products:  Composite Products and Services

Application Information





Aropol resins are used in electrical standoff insulators, electrical cabinets, circuit breaker covers and base and bus supports.

  • Cost competitive
  • Good physical properties
  • Good fatigue failure resistance
General Purpose Laminating

Aropol resins are competitively priced with strong physical properties making them a good choice for general purpose laminating applications.

  • Cost competitive
  • Good physical properties
  • Good fatigue failure resistance

Aropol resins can be pultruded into structural shapes such as cooling tower components, beams, ladder rails, window lineals, thin walled parts, wastewater treatment components and tool handles.

● Flexible blending resin
● Good fatigue failure resistance
● Excellent physical properties
● Good mechanical properties

Recreational Marine

Aropol resins are high quality, economical resins used to manufacture boat hulls, decks and small production parts for the marine industry

  • Tough impact resistance
  • Good surface quality
  • Excellent physical properties
  • Good mechanical properties
  • Excellent weather properties
Truck Components

Aropol resins are used in a variety of truck components including reinforcement panels, cross car beams and grille opening retainers.

  • High mechanical and impact resistance
Tub and Shower

Aropol resins offer fillable back-up laminating resins, acrylic bonding resins and spa back-up resin.

● Good wet out and air release
● High impact and physical strength
● User-friendly processing
● Crack resistant
● Excellent bonding to acrylic
● Low shrink for good surface appearance
● Excellent sprayability

Document Library

Product Literature(publicly available)

Additional Product Literature

Safety Data Sheets


Composite polymers mechanical testing

Mechanical testing provides test data to characterize the mechanical integrity of molded resin castings, composites, laminates and sections of molded parts. The data is used to qualify materials for customer specifications, to help design materials for optimum end-use performance or to evaluate the effects of exposure environments on mechanical integrity. The material strength can be evaluated in a variety of deformations:
● Tensile testing – measures the stiffness and strength of a material as it is being pulled apart in tension.
● Flex testing – measures the stiffness and strength of a material as it is being deformed in three-point flexural bending.
● Fatigue testing – applies to a cyclical load or strain to the sample and determines the resiliency or durability of the material by measuring the number of cycles to failure.

Resins and gelcoat technical & analytical services

Ashland’s global technology team includes skilled scientists, chemists, engineers and researchers who formulate specialty polymer products. With extensive experience in processes such as hand lay-up, spray-up and closed molding processes such as infusion, resin transfer molding, sheet molding compound, bulk molding compound, pultrusion and cured-in-place pipe, our development team can simulate the manufacturing environment in our world -class facility. This team then applies its specialty chemical expertise to customize polymers that enhance customers’ specific application needs. The team also offers chromatography, spectroscopy, microscopy, spectrometry, thermal analysis and mechanical testing services that validate and verify applications of its products to ensure quality control and safety.


Market Information



Product Types or Functions

Building and Construction
Electrical, General Purpose Laminating, Pultrusion, Tub and Shower
Unsaturated Polyester Resin
Recreational Marine
Unsaturated Polyester Resin
Truck Components
Unsaturated Polyester Resin