Best Body Repair Putty Under $100 (2026)

We ranked products under $100 by a value score that weighted user ratings, suitability for metal/fiberglass/glazing tasks, and the usefulness of included tools or hardeners

This roundup covers body repair putties and related finishing products priced under $100, focused on tools for glazing, fiberglass and metal repairs, and surface prep. Selections were based on value scores combining user ratings, versatility (glazing, fiberglass, metal), and relevance for DIY and shop use

Top Picks

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    Duraglas Fiberglass Filled Filler 1 Gallon

    Duraglas Fiberglass Filled Filler 1 Gallon

    U.S. Chemical & Plastics • ★ 3.8/5 • Mid-Range

    Fiberglass-filled filler for metal and fiberglass repairs, including rust, cracks, and holes. Noted for strong adhesion and quick hardening, with easy application. Customers value reliability and waterproof results

    • fiberglass-filled formula
    • works on rust and cracks
    • easy-to-use finishing putty
    Check current price on Amazon →
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Buying Guide

Match putty type to substrate

Choose polyester putties or metal glazes for metal and fiberglass panels, and glazing putty for final surface filling and feathering

Use compatible hardener

Select the correct hardener formulation and volume for the putty—system-specific hardeners ensure proper cure and work time for polyester-based products

Consider finish and sanding properties

Look for products designed for glazing and finishing or with a dry guide coat option to highlight low spots and speed sanding for a smooth final surface

Prioritize multi-purpose kits for repairs

Kits that include resin or filler and applicators simplify fiberglass and small structural repairs without needing separate tools

Check value via rating and application use

Balance user ratings with intended use—high-rated items for glazing, fiberglass repair, or guide-coating can offer better value for specific tasks