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    Polyester Resin & Filler

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    Airo-Chemie FIX & SEAL Polymer Sealant 290ml - Black Airo-Chemie
    Airo-Chemie FIX & SEAL Polymer Sealant 290ml - Grey Airo-Chemie
    Airo-Chemie FIX & SEAL Polymer Sealant 290ml - White Airo-Chemie
    Airo-Chemie Acrylic Hardener 1 Ltr Airo-Chemie
    Airo-Chemie Acrylic Hardener 250ml Airo-Chemie
    Airo-Chemie Formel S2000 Acrylic Filler 4:1 4 Litre - Dark Grey Airo-Chemie
    Airo-Chemie Formel S2000 Acrylic Filler 4:1 1 Litre - Dark Grey Airo-Chemie
    Airo-Chemie Formel S 2000 Acrylic Filler 4:1 4 Litre - Light Grey Airo-Chemie
    Airo-Chemie Formel S 2000 Acrylic Filler 4:1 1 Litre - Light Grey Airo-Chemie
    Airo-Chemie Unispray Grey Sprayable Filler 1.5kg Airo-Chemie
    Monofil Bridging Filler inc Hardener (2LT) Monofil
    Airo-Chemie FIX Polyester Resin 5kg + Spatula Airo-Chemie
    Airo-Chemie FIX Polyester Resin 2.5kg + Spatula Airo-Chemie
    Airo-Chemie FIX Polyester Resin 800g + Spatula Airo-Chemie
    Airo-Chemie FIX Polyester Resin 250g + Spatula Airo-Chemie
    Airo-Chemie FIX Polyester Resin 25kg Airo-Chemie

    Polyester Resin & Filler Frequently Asked Questions

    What is polyester resin?

    Polyester resin is a durable and fast-curing synthetic polymer that forms the foundation of most high-strength, two-part fillers. It is supplied as a thick paste that, on its own, will not harden.

    To activate it, a catalyst, typically a liquid or cream hardener, must be mixed in. This initiates a chemical reaction (polymerisation) that causes the resin to rapidly cure into an incredibly hard, rigid, and solid material.

    The resulting cured resin is known for its excellent strength, heat resistance, and sandability. It is a cost-effective solution for a huge range of repairs, allowing you to fill significant gaps and reshape damaged areas before sanding them back to a perfectly smooth, paintable finish.

    What is polyester resin used for?

    Thanks to its strength, fast-curing nature, and sandability, polyester resin filler is one of the most versatile repair products available. It is the go-to solution for filling and repairing dents, cracks, and holes in a wide variety of materials.

    Some of its most common applications include:

    • Automotive Body Repair: This is its most famous use. It's perfect for filling dents, scratches, and rusted areas on vehicle body panels.
    • Fibreglass (GRP) Repairs: It bonds exceptionally well to fibreglass, making it ideal for repairing cracks and holes in boats, canoes, caravans, and other composite items.
    • Wood Repair: It can be used to fill large, non-structural holes or rotted sections in timber, providing a very hard and durable repair.
    • Metal Fabrication and Repair: It adheres well to various metals, making it useful for smoothing weld joints or repairing damage on metal fabrications.
    • General DIY: It can be used to repair cracks in certain types of masonry or for creating custom shapes and moulds.

    Can I use polyester resin filler over an epoxy surface?

    Yes, you can apply polyester resin filler over a fully cured epoxy surface, but it is absolutely critical that the epoxy is prepared correctly first.

    The bond between polyester and epoxy is purely mechanical, not chemical. This means the polyester needs a rough surface to physically grip onto.

    The Correct Process:

    1. Ensure the epoxy is fully cured (check the manufacturer's guidelines, this can be 24-72 hours).
    2. Thoroughly sand the entire epoxy surface with a coarse grit sandpaper, typically between P80 and P180. Your goal is to remove all the surface gloss and create a uniform pattern of deep scratches.
    3. Clean the surface to remove all dust before applying the polyester filler.

    Crucial Note: You cannot do this the other way around. Never apply epoxy over a fresh polyester filler. Polyester resins release chemicals (styrene) as they cure, and if you trap these under a layer of epoxy, it will prevent the epoxy from curing properly and will cause it to delaminate and peel off.

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    Learn More About Our Polyester Resin & Filler Products

    For repairs that require both speed and strength, a resin filler is the go-to solution for professionals across multiple industries, especially Automotive Refinishing. When you need to fill dents, deep scratches, and imperfections quickly without sacrificing durability, a polyester Filler provides a tough, reliable, and easily workable repair. At Nebula Paints, we supply high-quality, professional-grade resin fillers designed for fast, effective results.

    The Power of Polyester Resin Filler

    The core of a high-performance resin filler is its polyester resin base. This is a two-component system, consisting of the filler paste and a hardener. When mixed, a rapid chemical reaction begins, causing the filler to cure quickly into a tough, solid mass. This fast-curing nature is what makes it an industry staple; it dramatically reduces downtime and allows professionals to move from filling and sanding to priming in a fraction of the time required by other fillers.

    Unlike other products, a polyester filler is renowned for its superb sanding qualities. Despite curing to a very hard finish, it can be sanded with remarkable ease, allowing you to shape and feather the repair to a perfectly smooth, seamless finish that's ready for painting.

    Key Benefits of Our Resin Filler

    Our collection of polyester filler is chosen for its professional-grade performance, offering significant advantages for any repair job.

    • Extremely Fast Curing:

      The catalysed polyester resin formula cures rapidly, allowing you to sand and shape the repair within minutes, not hours, massively speeding up your workflow.
    • Incredibly Easy to Sand:

      Despite its hardness, resin filler is famously easy to sand, enabling you to achieve a perfectly smooth, feathered edge for an invisible repair.
    • Excellent Adhesion:

      Provides a tenacious bond to a wide variety of substrates, and is especially effective on bare metal, making it the number one choice for Automotive Bodywork.
    • High Strength and Durability:

      Creates a tough, resilient, and non-shrinking repair that is resistant to impact and will stand the test of time.
    • Versatile Application:

      While it's the standard for car body repairs, it's also an excellent multi-purpose resin for industrial fabrication, model making, and even household repairs on non-wooden surfaces.

    Fast-Curing Resin Filler & Polyester Filler

    In any professional car body shop, polyester filler is an absolute essential. It is the industry-standard product used for repairing dents, scratches, and stone chips in vehicle body panels. Its ability to bond securely to metal and be sanded to a glass-smooth finish creates the perfect foundation for Primer and Paint, ensuring a flawless, showroom-quality result.
    When you need a fast, strong, and reliable repair, look no further than a professional resin filler.

    Browse the collection at Nebula Paints today and discover the choice of professionals for a perfect finish, every time.