Polyester Resins are the most widely used resins in the composites industry. Sometimes referred to as Fiberglass Resins, 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.

Premium polyester gel coat delivers superior cosmetics and durability for parts and molds. Choose from traditional gel coats such as white, neutral, and clear, as well as orange or black tooling gel coats. All of our gel coats resist UV degradation and water absorption. To learn more about gel coat please visit our Learning Center articles "Gel Coat Application Guide" and "Gel Coat Troubleshooting Guide".

Shop our selection of polyester resins, gel coats, spray guns, and supplies below!

  • Acetone Dispenser

    The Safest Way to Keep Acetone at the Ready
    3 star rating
    Reduce spills, evaporation, and contamination. Easy-to-squeeze dispensing—Easy to identify. Our 16 oz....
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  • Latex Gloves

    Protect Hands for Most Lamination Projects
    For most lamination projects, these affordable latex gloves will last for several hours at a time. They are...
  • Nitrile Gloves

    Excellent for General Use
    Nitrile gloves are excellent general use gloves in a chemical or solvent environment and are an excellent...
  • Safety Goggles

    Impact Resistant and Ventilated for Comfort
    Composite materials can be dangerous when you're not properly protected. Vapors and splashes can cause unnecessary...
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  • Two Strap Dust and Mist Mask (Box of 20)

    A Simple Measure for Safety
    Protect against respiratory irritation and potential health issues with this simple safety device. Particles from...
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  • Organic Vapor Respirator

    Stay Safe, Stay Comfortable
    With dust, fumes, vapors and other air borne contaminates are a common place in any workshop, it's important to keep...
  • Disposable Lab Coat

    Comfortable, Safe Coverage, Easy Clean-Up
    Laminating can be a dirty job. Make sure you keep the chemicals and dust off your clothes—and away from your...
  • Disposable Boot Cover

    Protect Footwear and Keep Floors Clean
    The physics are simple: when spills are made or dust flies, particles usually make their way to the floor—and...
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#77 Polyester Molding Resin is a wax-free, general purpose fiberglass resin. This resin is a great choice for building low-cost molds, or for general fiberglass 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 and extremely durable parts.

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

Proper gel coat application can be a challenge for professionals and is probably the most common problem area for those new to composite work. Save yourself some wasted time and material. Before starting your gel coat project, read through the Gel Coat Troubleshooting Guide in our free online Learning Center, to learn the common problems to avoid.

You can place your order right here on our website or, if you have any questions, call 1.800.838.8984 | 8 a.m. - 5 p.m. EST Mon-Fri.

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