Black Tooling Gelcoat (Polyester)


Black Tooling Gelcoat: Achieve a high-gloss, durable finish with superior hardness and abrasion resistance. Perfect for molds demanding precision and longevity.

Black Tooling Gelcoat is primarily used as a surface coating for the interior of fiberglass molds.

Color: Black

All gelcoat prices include catalyst.
1 Quart= 1oz, 1 Gallon=3oz, 5 Gal=13oz

Black Tooling Gelcoat

The Ultimate Choice for Moldmaking Excellence!

High Gloss Finish: Achieve a radiant and professional high-gloss finish that stands out in every application.

Abrasion Resistant: Designed for durability, this gel coat offers exceptional abrasion resistance, ensuring longevity and consistent performance.

Superior Hardness: Experience the benefits of a gel coat with unmatched hardness, perfect for molds that require a robust and durable surface.

Exceptional Craze Resistance: Say goodbye to unwanted distortions. Our Black Tooling Gel Coat is formulated to resist crazing, ensuring a smooth and flawless finish.

Minimum Distortion: Crafted for precision, this gel coat guarantees minimal distortion, making it ideal for molds that demand accuracy and perfection.

Versatile Application: Whether you’re creating molds for parts with a white gel coat or looking for a gel coat with superior adhesion properties, our Black Tooling Gel Coat is the perfect choice.

Affordable: Even with superior properties, we offer the most affordable option!

Discover the difference with our Black Tooling Gel Coat. Designed for professionals, it promises unmatched quality, durability, and aesthetic appeal.


Polyester Gelcoat is used to provide a high-quality visually pleasing finish on the surfaces of a fiber-reinforced composite material. The most common gelcoats are based on epoxy or unsaturated polyester resin chemistry. Gelcoats are modified resins that are applied to molds in a liquid state. Once cured, the gelcoat forms cross-linked, polymers and are then backed with a composite matrix. Often this matrix is a mixture of polyester resin, fiberglass, carbon fiber ; and in some cases epoxy resin with fiberglass.

When fully cured, the reinforced composite is removed from the mold,  and will present the finished gelcoat surface. This is usually pigmented to provide a glossy surface, which improves the aesthetic appearance of the completed composite, such as a fiberglass boat hull or carbon fiber hood.

Many wood or fiberglass boats and aircraft are manufactured using carbon fiber and fiberglass composite materials with an outer layer of gelcoat, typically 0.5 mm to 0.8 mm (0.02 in to 0.03 in) thick. Polyester gelcoat is designed to be durable, and provide protection from the ultraviolet rays of the sun and water.

Specialized gelcoat such as those used for tooling can be used to manufacture the molds, which in turn are used to manufacture composite parts. These gelcoats have a very high level of durability to overcome the mechanical and thermal stresses during the curing and de-molding processes.

In addition to any pigment a gelcoat will, if necessary, contain a thixotropic additive to assist its ability to stick to vertical portions of the mold while curing.


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