This creates glass threads that are chopped, woven into a mat or spun to make wool. Fiberglass has a high strength-to-weight ratio and is scratch, chemical and temperature resistant. Read More…



Leading Manufacturers
All Plastics and Fiberglass, Inc.
Mobile, AL | 800-226-1134With 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 ensures the highest quality fiberglass fabrications.



WYN Industries, Inc.
Whitestown, IN | 317-769-3455For over 40 years, WYN Industries, Inc. has been committed to providing custom solutions for all of your fiberglass needs. We offer fiberglass grating and structural components in a wide range of sizes and shapes. Other products include custom platforms and staircases for your workplace.



Arrowhead Plastic Engineering, Inc.
Muncie, IN | 765-286-0533Arrowhead has been in the composite molding business for 40+ years. We supply parts to many different customers in a variety of different industries. Such industries include but are not limited to: agriculture, truck and bus, marine, transportation, commercial and specialty vehicle and equipment manufacturers. We specialize in both open and closed molding and have many years of experience converting products made from traditional materials to fiberglass in order to save our customers money.



Town & Country Plastics, Inc.
Marlboro, NJ | 732-566-3800At Town & Country Plastics, Inc., we solve your water control problems by designing and manufacturing custom neutralization and wastewater treatment systems and products in any size, shape or material you require, and we do it with fast turnaround times and at highly competitive prices. Town & Country Plastics has been a leading manufacturer of poly tanks, neutralizing and dilution tanks, chemical storage tanks, double wall tanks, plastic water tanks and more.



Molded Fiber Glass Companies
Ashtabula, OH | 800-456-5263At Molded Fiber Glass Companies, we have fiberglass products to suit your needs. Our core fiber molding technologies include directed fiber performing, compression molding, infusion molding, painting and any secondary operations that may be necessary. Contact us for custom fiberglass products.



Janco Engineered Products
Mishawaka, IN | 574-256-3860Our fiberglass items are a great alternative to metal. These products are not only flexible and lightweight but also very durable. Turn to us for your fiberglass fabrication needs. Our engineers can create fiberglass protective coverings, machine housings and more. Our teams utilize open molding and infusion to ensure the quality of our items. Please give us a call today!



Fiberglass fabricators use limestone, silica, strand feldspar and borax to make standard fiberglass, often mixing these with vinyl, polyester, epoxy or Furan, which are thermoplastic resins. This forms a fiberglass composite, sometimes referred to as fiberglass, but officially called fiberglass reinforced plastic (FRP). Fiberglass is a popular alternative to many materials because of its high strength to weight ratio, making it easier to transport, install and handle.
There are seven main types of fiberglass used today. These include E-glass, the most common and used for fiberglass reinforced plastics, A-glass, which has little boron oxide, E-CR-glass, which has a high acid resistance, C-glass, used for glass staple fibers, D-glass, which has a high dielectric constant, R-glass, which has high mechanical properties and S-glass, which has a high tensile strength.
The manufacturing process begins with the glass threads. They are either manufactured into fibers or wool. To make wool out of fiberglass, after the molten glass is pushed through a rapidly spinning container with little holes, a hot gust of air or gas converts the threads into fibers. The fibers are interlaced with each other, resulting in a mound of fleecy material.
Fiberglass reinforced plastics are manufactured one of three different ways, depending on the shape of the product being formed. Molds, often called mandrels, in the form of the desired product shape are used during this process. Heat and pressure help form layers of the composite materials to the mold. The fiberglass reinforcement layer is composed of either chopped strand mats or woven glass fibers. The resin material is either sprayed or rolled onto the mold. For shapes that are round, like tanks and pipes, a centrifugal molding method is used.
Open molding uses a single mold. The first layer, a gel coat, is applied and let dry. Next, the fiberglass material is rolled on as well as the spray-on resin material. Closed molding is similar to open molding but uses a mold consisting of two different, separate parts. The gel and fiberglass layers are applied to one mold, and the other mold is then pressed against it. Next, the resin is injected in molten form. This method is used for parts like panels and corrugated sheets that are smooth on both sides.