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Fiberglass Fillers Guide: Aerosil, Q Cell, Fairing & Structural Fillers Explained What Are Fiberglass Fillers? Fiberglass fillers are powders, fibers, or pre-mixed compounds used with polyester resin or epoxy resin to create custom mixtures for marine, repair, and composite applications. They are commonly used in: Fiberglass boat repair Marine fairing and surface preparation Composite construction Surfboard building --- Types of Fiberglass Fillers (What to Use and W...
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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...
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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...
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Polyester vs Vinyl Ester Resin: Understanding the Differences Choosing the correct resin is one of the most important decisions in fiberglass lamination. Polyester and vinyl ester resins are both widely used in open molding, hand lay-up, and spray-up applications, but they offer different performance, durability, and cost characteristics. Understanding how these resin systems differ will help you select the right material for your project, environment, and performance requirements. ...
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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...
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Boat Restoration Technical Support Guide Last updated: February 2026 Boat restoration is the process of repairing, rebuilding, and refinishing fiberglass boats to restore structural integrity, appearance, and long-term performance. This technical support guide serves as a master reference for understanding materials, repair methods, and best practices used in modern fiberglass boat restoration. This page is designed as a living knowledge base. Each section below will continue ...
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Awlgrip Surface Preparation Guide Proper surface preparation is the most important step in any Awlgrip paint system. Different substrates require specific cleaning procedures, sanding profiles, and primer systems to achieve proper adhesion and long-term durability. Shop Awlgrip Full Application Guide Surface Prep → Fairing → Primer → Topcoat → Cure → Finish ...
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Awlgrip Application Guide › Surface Preparation › Fiberglass Fiberglass Surface Preparation for Awlgrip Paint Before applying Awlgrip primer or topcoat systems, fiberglass and gelcoat surfaces must be properly cleaned, sanded, and prepared. Mold release agents, wax contamination, and oxidation will prevent epoxy primers from bonding correctly. Need help with a project? Call our coatings team: 321-639-3046 Quick Answer: How Do You Prep Fiberglass for Awlgrip?...
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Awlgrip Application Guide › Surface Preparation › Aluminum Aluminum Surface Preparation for Awlgrip Aluminum substrates require specific cleaning, profiling, and corrosion-protection priming to achieve a yacht-grade Awlgrip finish. Per the official Awlgrip YPAC training, prepped aluminum must be primed within 8 hours to prevent oxide regrowth. Need help with a project? Call our coatings team: 321-639-3046 ...
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Max Cor CF Epoxy Primer (Controlled Fusion Technology) How and Why to Use Max Cor CF Max Cor CF Epoxy Primer is a high-performance, chromate-free corrosion primer engineered for aluminum and steel in marine and industrial environments. Designed with Controlled Fusion Technology, it chemically bonds to properly prepared metal surfaces to create a durable, corrosion-resistant foundation for subsequent coatings. This system is ideal for aluminum boats, towers, structural components, a...
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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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