Fiberglass Molding

A reliable source for Fiberglass Fabrication information and leading Fiberglass Fabrication Companies

There are many different fiberglass molding processes, including compression molding, blow molding, rotational molding, injection molding and dip molding, among others. Read More…

Fiberglass Molding Fiberglass molding represents the process of shaping fiberglass products using a hollowed form. Fiberglass moldings can also be created when solid materials are pressed into a die form.

Leading Manufacturers

Mobile, AL  |  800-226-1134

With over 100 years combined experience, All Plastics and Fiberglass has the experience to handle all your fiberglass needs. No matter how large or small the job is, AP & F is committed to a process that assures its valued customers of the highest quality fiberglass fabrications available on the market. You can count on AP & F, Inc.’s products to not only being the best, but also built to last.

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All Plastics and Fiberglass, Inc. $$$

Compton, CA  |  310-328-6661

Fiberglass and composite production and tooling are what we're known for. We are a service company, and also known for making molds for other fiberglass companies to use. We have 25 plus years in the composites industry. For more information, please visit our website!

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Performance Composites, Inc. $$$

Holt, MI  |  800-610-0811

Molded Plastic Industries, Inc. has been manufacturing high quality fiberglass fabrication for over 30 years. Let our experienced staff help you select the most cost efficient manufacturing process for your unique application. The production team is ready to provide you with superior customer service and satisfaction. Call one of our service representatives today to learn more!

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Molded Plastic Industries, Inc. $$$

Portland, OR  |  503-775-7755

Miles Fiberglass has invested almost 50 years in the fiberglass and composites industry. Our company produces RV component parts, Rail car component parts, water storage tanks, showers, wind turbine component parts, cars and much more. Some processes include open mold spray up, vacuum bagging and resin infusion. For a complete listing of the processes we provide, view our website.

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Miles Fiberglass & Composites, Inc $$$

Osborne, KS  |  800-255-0316

Osborne Industries specializes in liquid molding of thermoset resins. Our Resin Transfer Molding (RTM) and Reaction Injection Molding(RIM) processes allow flexibility for your fiber-reinforced project. Osborne has over 40 years of experience and has an ISO 9001 QualityManagement System.

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Osborne Industries, Inc. $$$
placeholder image All Plastics and Fiberglass, Inc. Performance Composites, Inc. Molded Plastic Industries, Inc. Miles Fiberglass & Composites, Inc Osborne Industries, Inc.

Since its introduction, fiberglass has been used as a reinforcing agent for plastics and as insulation in buildings, homes, stoves, refrigerators, furnaces and in many other applications throughout industry, commerce and in consumer products contexts. Fiberglass moldings are low weight, high strength and scratch resistant. Many boat hulls, go-kart bodies, large storage tanks and automobile parts can be made of molded fiberglass.

Fiberdome Resin Transfer Molding Fiberglass Molding - Fiberdome, Inc.

Fiberglass molding can be used to make fiberglass sheets, panels, pipes and a wide variety of other shapes. A range of different fiberglass compositions are available to suit the many contexts in which fiberglass moldings are applied. Just a few of these compositions include E-glass, A-glass, E-CR-glass, C-glass and R-glass, each of which features its own properties of strength, durability, UV and corrosion resistance, optical clarity and color.

The three main methods of fiberglass molding are open molding, closed molding, and centrifugal molding. In open molding, a layer of gel coat is applied and cured in a one-piece mold or structure. After being layered into the mold, the fiberglass and sprayed resin are allowed to cure. During closed molding the initial gel coat is applied in a two-part mold.

Fibers in the form of chopped fibers or laminated sheets are sprayed or placed in the female part of the mold on top of the gel coat. The part cures after being sealed in the mold by a vacuum and having catalyzed resin injected into the pressurized mold. In centrifugal molding, the gel coat is applied to the sides of a spinning cylindrical mold.

Layer by layer, catalyzed resins saturated with short fibers are sprayed into the mold until the desired thickness is reached. Centrifugal molding is used to form cylindrical products such as pipes and tanks. In all three processes, the end products are extracted from their molds and subject to any necessary surface treatments or other finishing processes.

Fiberglass Molding Informational Video