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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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Awlgrip 545 Epoxy Primer Guide 545 Epoxy Primer is the industry standard undercoat primer used in Awlgrip coating systems. It seals surfacing primers and prepares substrates for Awlgrip or Awlcraft topcoats while providing excellent adhesion and corrosion protection. View Full Awlgrip Application Guide Shop Awlgrip Primers Product Overview Key Features Outstanding adhesion to fiberglass, steel, aluminum and wood Corrosion resistant epoxy primer Used above or...
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Mirka Marine Surface Finishing Systems From heavy sanding to high-gloss finishing — complete systems for fiberglass, gelcoat, and marine coatings. About Mirka Mirka Ltd is a global leader in abrasives technology, delivering complete sanding and polishing systems designed to improve surface quality, efficiency, and profitability. ISO 9001 – Quality Assurance ISO 14001 – Environmental Management OHSAS 18001 – Occupational Safety Perfect Surfac...
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Fiberglass Florida: Awlcraft 3000 – The Next Generation of Yacht Topcoats Awlcraft 3000 is the newest evolution in the Awlgrip® family of marine coatings. Designed as a next-generation acrylic urethane topcoat , it offers a perfect balance of brilliant color, high-gloss retention, and easy repairability . Professional applicators worldwide trust it as the modern standard for yacht finishing. Why Awlcraft 3000 Is Different Next-Level Technology: Builds on decades of Awlgrip innovat...
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Fiberglass & Gelcoat Technical Support Fiberglass and gelcoat work demands the right materials, proper technique, and an understanding of how each layer in the system works together. Whether you’re making repairs, building a mold, or producing parts, Fiberglass Florida provides technical guidance built on real-world experience. Our team supports professionals and serious DIY builders working with polyester, vinyl ester, and epoxy systems. We help you select compatible products, apply them corre...
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Professional Awlgrip Guidance — Explained Clearly Awlgrip coatings are professional-grade marine finishes. When applied correctly, they deliver unmatched durability and appearance — but they are also process-sensitive. Our technical guidance follows the same application principles outlined in Awlgrip’s official application documentation, translated into clear, real-world advice for boat owners, repair shops, and first-time painters. Common Awlgrip Application Issues We Hel...
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Technical Support & Expert Guidance Working with fiberglass, gelcoat, and marine coatings requires the right materials, correct procedures, and real-world experience. At Fiberglass Florida, technical support is part of what we do every day. Our team works directly with boat builders, repair yards, manufacturers, and serious DIY builders to solve real-world problems using proven materials and practical methods. Call Technical Support Send Us a Message ...
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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...
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Open Molding & Lamination Technical Support Open molding and hand lay-up remain some of the most widely used fiberglass manufacturing methods in marine, industrial, and composite fabrication. Successful lamination depends on selecting the correct laminating resin and understanding how resin formulation, processing behavior, and cure characteristics affect the finished composite part. What Are Laminating Resins? Laminating resins are polyes...
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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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Preparing Gelcoat for Awlgrip Paint Systems When applying Awlgrip or Awlcraft coatings over fiberglass boats, proper preparation of existing or new gelcoat is critical for long-term adhesion and finish quality. Most adhesion failures in marine paint systems occur because of poor surface preparation rather than product failure. Why Gelcoat Preparation Matters Before applying Awlgrip systems the gelcoat surface must be: Free of wax and contamination Properly sanded to ...
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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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Awlcraft 3000 Technical Support Guide Awlcraft 3000 is a professional-grade, two-component polyurethane marine topcoat designed for high-gloss yacht finishes. This guide covers mixing ratios, spray setup, film thickness, drying times, repairs, maintenance, and common contractor questions. If you are spraying Awlcraft 3000 and need technical clarity, this is your complete support resource. What Is Awlcraft 3000? Short Answer: Awlcraft 3000 is a buffable, repairable, high-gloss p...
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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-t erm durability. Shop Awlgrip Full Application Guide Surface Prep → Primer → Fairing → Primer → Topcoat → Cure Fiberglass Surface Preparation Fiberglass substrates require thorough cleaning and sa...
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Awlgrip Yacht Paint Application Guide Complete professional guide to surface preparation, priming, fairing, and applying Awlgrip marine coatings. Built for boat builders, professional painters, and first-time users who want a flawless finish. Guide Contents Overview of Awlgrip Coating Systems Surface Preparation Fundamentals Preparing Fiberglass & Gelcoat Preparing Aluminum Preparing Steel Preparing Wood Fairing Compounds & Surface Correction...
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Preparing Previously Painted Surfaces for Awlgrip Many boat refinishing projects involve applying new coatings over previously painted surfaces. Proper inspection, cleaning, and sanding of existing paint systems is critical to ensure long-term adhesion and professional finish quality. The condition of the existing coating determines whether it can be recoated directly or if removal and full surface preparation are required. Evaluate the Existing Paint System Before beginning...
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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...
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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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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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MEKP Catalyst Calculator & Mixing Guide (oz, mL, cc) MEKP Catalyst (Methyl Ethyl Ketone Peroxide) is used to cure polyester resin, vinyl ester resin, and gelcoat. The correct mix ratio is critical to ensure proper curing, strength, and finish quality. Standard mix: 1.5% MEKP (about 2 oz per gallon of resin). Important Mixing Notes This information is based on MEKP 925 and tested at 77°F (25°C) . These are estimates and may vary depending on the resin system, shop conditions, and ap...
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