Polyester Resins are the most widely used resins in the composites industry. Polyester Resins are less expensive, offer some corrosion resistance, and are more forgiving than epoxies. The majority of all fiberglass parts are constructed using Polyester Resins because they are easy to use, fast curing, and tolerant of temperature and catalyst extremes.

Scroll down for more general polyester resin information. To learn more about specific products and pricing, click on an image below.

Polyester Molding Resin

Polyester Molding Resin

General Purpose Resin for Part/Mold Fabrication

Isophthalic Polyester Resin

Isophthalic Polyester Resin

Build Strength and Stability for Tough Parts

MEKP Hardener

MEKP Hardener

Industry Standard Catalyst

Styrene Wax

Styrene Wax

Get a Complete Cure for Polyester Resins

Carvable Low Density Polyester Filler

Carvable Low Density Polyester Filler

Easy to Use and Cures Quickly for Fast Repairs

Lightweight Polyester Cosmetic Filler

Lightweight Polyester Cosmetic Filler

Smooth Over Surface Damage to Composites

BPO Hardener

BPO Hardener

Easy-Blend Cream Hardener

Dry Gas Blanket

Dry Gas Blanket

Extend the Life of Liquids with One Easy Spray

#77 Polyester Molding Resin is a wax-free, general purpose resin. This resin is a great choice for building low-cost molds, or for general part fabrication. #90 Isophthalic Polyester Resin is a durable, dimensionally stable, corrosion resistant resin. The 225°F service temperature and low shrinkage properties of this resin are ideal for making dimensionally stable molds or extremely durable parts.

Want to learn more about Polyester Resins? Fibre Glast has a free Learning Center with helpful white papers like: About Resins, Mold Construction, Molding Fiberglass, and Fundamentals of Fiberglass. You can also contrast Polyester Resin with Epoxy Resin and Vinyl Ester Resin in the Fibre Glast blog article, Choosing the Right Resin.

You can place your order right her on our website or, if you have any questions, call 1.800.838.8984 | 8:00am - 8:00pm EST Mon-Fri.

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