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Evercoat 603 Liquid Hardener for Fiberglass Resin and Gel Coat 1.5 oz

Manufacturer

Evercoat

<h3>About Evercoat: A Legacy of Collision Repair Innovation</h3><p>Since 1953, <strong>Evercoat</strong> has been one of the most trusted names in professional collision repair. Headquartered in Cincinnati, Ohio, Evercoat has spent over seven decades engineering products that help body shops, marine technicians, and commercial fleet operators achieve flawless, long-lasting repairs. Their commitment to research, formulation science, and real-world shop performance has made them a go-to brand for professionals who can't afford to cut corners.</p><p>What truly distinguishes Evercoat from the competition is their focus on efficiency. Their product lines are designed with direct-to-paint workflows in mind, helping shops reduce labor time without sacrificing finish quality. Whether a technician is working on a minor dent or a full panel replacement, Evercoat products are engineered to integrate smoothly into high-throughput repair environments.</p><h3>Evercoat's Core Product Lines</h3><p>Evercoat's catalog spans nearly every stage of the collision repair process. At the heart of their lineup is their industry-renowned <a href="/229-evercoat-body-filler-14648">body filler</a> range — a diverse family of lightweight fillers, premium finishing glazes, and specialty putties formulated for everything from large structural panels to fine cosmetic finishing work. Evercoat body fillers are known for their easy sand characteristics, excellent adhesion, and resistance to shrinkage and pinholes, making them a staple in professional body shops across North America.</p><p>Beyond fillers, Evercoat offers a comprehensive selection of <a href="/229-evercoat-primers-sealers-200811">primers and sealers</a> engineered to maximize topcoat adhesion and corrosion resistance. These products are designed to work seamlessly with modern waterborne and solvent-borne paint systems, delivering a consistent, uniform foundation for the final finish. Their <a href="/49473-paint-primer-evercoat-229">paint primers</a> further extend this capability, providing excellent filling properties and a smooth surface that minimizes the need for additional blocking or sanding steps.</p><p>For bare-metal and multi-substrate applications, Evercoat's <a href="/229-evercoat-primers-200810">primers</a> offer strong inter-coat compatibility and are formulated to meet the demands of today's mixed-material vehicle construction — including aluminum, SMC, and high-strength steel panels.</p><p>Evercoat's expertise also extends well beyond automotive bodywork. Their <a href="/229-evercoat-gel-coat-gel-coat-repair-kits-200489">gel-coat and gel-coat repair kits</a> are widely used in the marine industry to restore fiberglass hulls, decks, and surfaces to a like-new finish. These products are formulated for UV resistance and color retention, making them ideal for watercraft exposed to harsh environmental conditions.</p><h3>Why Professionals Choose Evercoat</h3><ul style="list-style:disc"><li><strong>Over 70 years of formulation expertise</strong> in automotive, marine, and commercial repair</li><li><strong>Direct-to-paint product systems</strong> that streamline shop workflows and reduce cycle times</li><li><strong>Broad substrate compatibility</strong> — works on steel, aluminum, fiberglass, and composites</li><li><strong>Comprehensive training and technical support</strong> to help shops get the most from every product</li><li><strong>A full-spectrum catalog</strong> covering fillers, glazes, adhesives, sealants, primers, resins, and more</li></ul><p>From the first skim coat of filler to the final sealer before topcoat, Evercoat provides the tools professionals need to deliver consistent, high-quality results — job after job.</p>

Part Number

603
09/12/2036 6:01 AM
Sale Price

$9.45

In Stock (10+)

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Product Details

Evercoat 603 Liquid Hardener is a methyl ethyl ketone peroxide (MEKP) catalyst designed as a setting agent for use with all polyester resins and gel coats. This clear liquid hardener is essential for initiating the curing process in fiberglass repair and fabrication projects.

Key Features:

  • Compatible with all brands of polyester resin and gel coat products
  • Comes in a convenient plastic squeeze tube with graduated measurements for precise mixing ratios
  • Clear liquid formula for consistent results
  • 1.5 fluid ounce (40-44cc) capacity per tube
  • Made in USA with quality control standards

This hardener must be mixed according to the manufacturer's directions on your specific resin or gel coat product label. Proper mixing ratios are critical for achieving optimal cure times and strength in automotive body repair, marine applications, and general fiberglass fabrication work.

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