Gelcoat: What It Is, How It’s Used, and How to Repair It Gelcoat is the outermost protective and cosmetic layer used on fiberglass parts. Understanding how gelcoat works — and how to apply or repair it correctly — is critical to achieving long-lasting performance and professional results. What Is Gelcoat? Gelcoat is a pigmented polyester or vinyl ester resin applied to the surface of fiberglass parts. It creates a smooth, high-gloss finish while protecting the underlying laminate from wat...
Mold Building & Tooling Technical Support Building a high-quality fiberglass mold requires more than just materials — it requires proper surface preparation, correct tooling products, and disciplined process control. Fiberglass Florida provides hands-on technical guidance for professional mold builders, boat repair yards, and composite manufacturers using proven composite tooling methods focused on surface quality, dimensional stability, and long-term mold performance...
Hand Laminating & Spray-Up Technical Support Hand laminating and spray-up are two of the most common open molding processes used in fiberglass fabrication. While both methods rely on similar materials, success depends on understanding the differences in application technique, resin behavior, and process control. At Fiberglass Florida, we provide technical support to help fabricators, repair yards, and builders choose the right laminating method and materials for their project — a...
Vacuum Infusion Technical Support Vacuum infusion is a closed-mold composite manufacturing process used to produce high-quality fiberglass laminates with precise resin control, improved fiber ratios, and reduced emissions. When set up correctly, infusion delivers consistent, strong, and lightweight parts with excellent surface quality. At Fiberglass Florida, we provide technical support for vacuum infusion projects ranging from small custom parts to large marine and industrial structure...
Hullgard Extra Epoxy Primer Application Guide How and Why to Use Hullgard Extra Hullgard Extra Epoxy Primer is a high-build, anticorrosive substrate primer designed to create a stable foundation for fairing compounds and finishing systems. It is commonly used after corrosion primers like Max Cor CF to build film thickness, improve adhesion, and prepare surfaces for Awlfair and topcoat systems. This primer is ideal for aluminum, steel, and fiberglass substrates where long-term durab...
Polyester Resin Guide: How to Use It, Types, and What You Need Short Answer Polyester resin is the most widely used material for fiberglass repair, boat building, and composite construction. It is affordable, fast-curing, and ideal for laminating fiberglass cloth, mat, and structural parts. --- What is Polyester Resin? Polyester resin is a thermosetting resin used in fiberglass applications to create strong, durable composite structures. It is activated using MEKP catalyst and cures throug...
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