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Vinyl ester resin (VE)

By sensXPERT

Vinyl ester resin (VE)

Vinyl ester resin (VE)

Polymer Type: Thermoset

Key Properties

  • Excellent mechanical strength and rigidity
  • Excellent chemical resistance
  • Enhanced water resistance
  • Good electrical insulating properties


  • Fiber-reinforced composites: High-performance boats, tanks, pipes, structural components, demanding chemical processing equipment.
  • Gelcoats and casting resins: Decorative surfaces, furniture, countertops, art objects, requiring improved chemical and weather resistance.
  • Adhesives and sealants: Bonding diverse materials, sealing joints and leaks in demanding environments.
  • Electrical components: Insulators, housings, potting compounds, where higher moisture and chemical resistance are needed.

Additional Information

Vinyl ester resin (VE) is a thermosetting resin produced by reacting an epoxy resin with acrylic or methacrylic acid. This results in a cross-linked polymer network with superior properties compared to UP resins. The unique structure of VE resins enhances their mechanical strength, chemical resistance, and water resistance, making them suitable for demanding applications where UP resins may not suffice.

VE resins are often preferred over UP resins for their improved performance characteristics, especially in applications requiring high strength, chemical resistance, and durability in harsh environments. However, VE resins can be slightly more expensive than UP resins.

Notes on VE:

  • Different VE types exist, each with varying properties and applications. Common types include bisphenol A-based and novolac-based resins.
  • VE resins typically require specific safety measures due to the presence of styrene during curing.

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