Description

R300 series is formulated from a high-performance isophthalic unsaturated polyester resin, specifically designed for closed-mold processes such as RTM (Resin Transfer Molding) and infusion.

This resin provides excellent flow characteristics, controlled gel time, and consistent curing behavior. Its optimized viscosity allows efficient mold filling and uniform reinforcement wet-out, resulting in high-quality laminates with a smooth and consistent surface finish.

Product Characteristics:

  • Low viscosity for easy mold filling and fast wet-out
  • Controlled gel time tailored for RTM and infusion processes
  • Higher mechanical performance compared to orthophthalic resins
  • Good adhesion between reinforcement layers
  • Controlled curing profile for stable and repeatable processing
  • Compatible with a wide range of gelcoats and pigments

Primary Applications:

R300 series is recommended for the manufacturing of composite parts requiring uniform thickness and good surface finish, such as:

  • Transportation components (automotive, rail, recreational vehicles, etc.)
  • Marine and watercraft parts
  • Other composite components produced via RTM or infusion

Recommended Application Methods:

  • RTM (Resin Transfer Molding)
  • Infusion / Light-RTM

Description and Specifications

The advanced technology behind Gelco’s resins gives them the following properties:

Good bonding between layers

Good interlayer adhesion indicates that the different layers of a material remain firmly bonded without separating

Stable curing performance

Stable curing control indicates that a material reacts in a uniform and predictable manner

Business Areas

Our products, such as gelcoats, barrier coats, resins, and paint, are used in various fields, including transportation, the marine industry, and the sanitary sector.

Marine

Our products are designed to deliver durability, protection, and performance in demanding marine environments.
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Transport

Our solutions protect and reinforce surfaces while adapting to the specific requirements of each type of vehicle.
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Specifications Document

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