Arrowhead Plastics is a trusted supplier of custom-fabricated fiberglass tanks, designed and built to meet the specific needs of our customers across various industries. With the ability to produce large-capacity tanks—up to 5000 gallons—we specialize in applications where off-the-shelf or stock tank solutions simply don’t work. Whether due to unusual dimensional constraints, non-standard configurations, or highly specialized usage requirements, our fiberglass fabrication capabilities allow us to create the right solution for complex challenges.

Unlike metal tanks, fiberglass tanks offer inherent corrosion resistance, making them ideal for storing a wide variety of chemicals, liquids, and other corrosive materials. Fiberglass construction provides long-term durability, strength, and low maintenance—especially in environments where exposure to moisture, chemicals, or extreme temperatures would compromise the integrity of steel or aluminum alternatives.

Our customers often turn to Arrowhead when a standard tank doesn’t fit the physical space they’re working with, or when the application requires integrated fittings, custom inlets or outlets, reinforced support structures, or unique shapes that traditional rotational or metal-molded tanks can’t provide. From initial design consultation through final fabrication, Arrowhead offers expert support, engineering insight, and production flexibility.

With decades of experience in custom composites, we take pride in our ability to build fiberglass tanks that perform reliably and meet both structural and regulatory requirements. Whether you need a one-off specialty tank or a series of custom units, Arrowhead can deliver with precision, quality, and service you can count on.

The open molded fiberglass hood is a popular solution for large, contoured components in the transportation industry—especially in applications like buses, trucks, and specialty vehicles. One of the key reasons fiberglass is the preferred material is the significantly lower tooling cost compared to other molding processes. This is especially important for large parts that feature compound curves, complex surfaces, or molded-in details. Open molding allows manufacturers to produce durable, cost-effective hoods without investing in expensive, multi-cavity tooling systems.

An additional benefit of using an open molded fiberglass hood is the material flexibility it offers. The type and quality of fiberglass reinforcement—such as chopped strand mat, woven roving, or multi-axial fabrics—can be selected based on the strength, weight, and cost requirements of the project. This customization enables design engineers to fine-tune performance characteristics, ensuring long-term durability with minimal added weight. This is particularly advantageous in industries where reducing vehicle weight can lead to increased fuel efficiency and improved overall performance.

The open molding process also provides flexibility in integrating functional features into the hood. Structural brackets, reinforcing ribs, hinge mounts, and other hardware can be mechanically fastened, laminated in place, or bonded to the backside of the part during or after the molding process. These additions enhance both the strength and usability of the hood, allowing for seamless assembly with surrounding vehicle components.

Arrowhead specializes in producing high-quality open molded fiberglass hoods and similar components, offering engineering support, in-house tooling, and precision manufacturing to meet your unique project requirements. Whether you need a single custom prototype or a low-to-medium production run, open molded fiberglass offers the versatility, cost savings, and performance you’re looking for.

Request a Custom Molded Fiberglass Fabricated Part Quote