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 ...
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...
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...
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...
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...
Steel Surface Preparation Guide Correct surface preparation of steel is critical for long-term coating performance. Removing mill scale, rust, shop primers and contaminants ensures strong adhesion and corrosion protection when applying Awlgrip coating systems. Select Your Steel Surface Scenario Steel (No Fairing Required) Standard steel surfaces where fairing compounds are not required. View System Steel (Fairing Required) ...
Fairing & Surface Repairs Guide Fairing and surface repair is used to correct imperfections in hulls, decks and structures before applying primer and topcoat systems. Proper surface preparation and fairing techniques ensure smooth finishes and long-term coating performance. Select Your Repair Scenario Minor Surface Repairs Small scratches, sanding marks or shallow imperfections. View Repair Method Fairing Large Areas ...
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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