Dynatron™ Fiberglass Resin

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Durable waterproof resin cures permanently for long-lasting repairs

Accepts auto and marine paints including gel coats

Ideal for filling holes caused by rust-outs

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  • Durable waterproof resin cures permanently for long-lasting repairs
  • Accepts auto and marine paints including gel coats
  • Ideal for filling holes caused by rust-outs
  • Resin mixed with hardener can be used by itself or with mat or cloth

Dynatron™ Fiberglass Resin is a durable, professional-quality polyester resin for repairing and restoring a range of materials including metal, wood and fiberglass in auto body repair. This resin accepts most auto and marine paints, including gel coats. With Dynatron™ Fiberglass Mat and Fiberglass Cloth, it is ideal for repairing large rust holes in metal and repairing fiberglass parts.

Dynatron™ Fiberglass Resin
Ideal for filling holes caused by rust-outs
Repairs and Restores Fiberglass, Metal and More
The ideal material for collision repair and restoration, Dynatron™ Fiberglass Resin is moldable and shapeable. The resin applies easily into properly prepared fiberglass and other substrates — it can be used to cover holes left by rust-outs and even to stabilize and repair rotted wood. Waterproof resin hardens fast and accepts most auto paint and marine topcoats including gel coatings.

Bringing Science to the Art of Auto Body Repair
As a brand of 3M, Dynatron is well known among collision repair professionals. This fiberglass repair resin is another way that 3M provides the latest benefits of science to the art of auto body repair and restoration.

Typical properties



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3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.