Unsaturated Polyester Resins

Unsaturated Polyester Resins (UPR)

High‑performance thermosetting resins engineered for strength, durability & versatility

Lyra Chem manufactures a complete range of UPR resins designed for the composites industry. These resins offer excellent mechanical properties, controlled curing behavior, and reliable performance across diverse FRP/GRP applications.

Products

Ortho Grade Resin

Orthophthalic resin is an economical general-purpose choice and widely used in the FRP industry.

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Iso Grade Resin

Improved strength, high thermal stability (500c) and mild resistance to corrosion conditions.

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Gel Coat Resin

prepared from a base resin and additives such as Thixotropic agents, fillers, pigments, and others.

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Vinyl Ester Resin

For 2K PU system, suitable for wood, plastic, metal, and high-performance automotive coatings.

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Applications

UPR is used in many applications inclusing fiberglass products, marine structures, industrial laminates, pipes, tanks, artificial marble, casting items, and high‑surface‑finish components.

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Unsaturated Polyester Resins (UPR)