Resin Infused Fiberglass Technology: What is it?, Why don't all Boat Builders use it? + What you Should Know!
- Spartancraft Boats Australia
- Aug 8, 2024
- 4 min read
Updated: Sep 16, 2024
In the world of boat building + Construction, innovation is key to supplying a strong, stable + Great quality Product whilst also remaining affordable. One such revolutionary technique that has taken hold of the industry is the Method known as Resin Infused Fiberglass. But what exactly is resin infused fiberglass, and why is it considered a game-changer in boat building? Let's delve into the intricate details to understand the magic behind this cutting-edge process.

What is Resin Infused Fiberglass?
Resin infused fiberglass is a state-of-the-art technique that involves infusing resin into fiberglass fabric under heavy duty bags with a use of a vacuum. This method ensures a consistent and uniform distribution of resin throughout the fiberglass, resulting in a stronger, lighter, and more durable material. Unlike traditional methods that rely on manually applying resin, resin infusion offers precise control over the resin-to-fiberglass ratio, reducing weight and maximizing strength.

Generic uses Resin Infused Fiberglass Technology in Global Manufacturing
Resin Infused fiberglass construction is a technology that is widely used for creating strong, light, and durable items across the globe. You'll find Resin infused fiberglass is used in the construction of Floor pans for some of the worlds most popular electric Cars, In Truck Bodies for some of the worlds most durable Heavy Rigid Vehicles, Wind Turbine Blades that provide power to town and cities around the globe and even for Housing or body components used throughout the aircraft industry.
A Great substitute to a metal alternative Resin Infused fiberglass is sought after for Production houses looking for a Strong, Light, Durable and Uniform component which can handle considerable Torque or Load without the risk of warping, fracturing or bowing under pressure.
How is Resin Infused Fibreglass Different from Other Fibreglass Boat Building Techniques?
Chopper Gun vs. Resin Infusion:
In conventional boat building, the chopper gun method is commonly used, where resin and fiberglass are sprayed simultaneously onto a mold. While this technique is quicker and more cost-effective, it often results in uneven resin distribution and excess resin build-up. On the other hand, resin infused fiberglass ensures a computer controlled and monitored resin flow, optimal resin saturation, and superior structural integrity, making it the preferred choice for a high-performance and high end product.
Benefits of Resin Infused Fiberglass Technology
Amongst the many Benefits to the resin infused fiberglass process, some of the Key benefits of using this in as part of the manufacturing pressed are;
Strength: Resin infused fiberglass offers exceptional strength-to-weight ratio, making it ideal for building sturdy yet lightweight structures.
Lightweight: The infusion process ensures that the final product is lightweight, enhancing performance and fuel efficiency.
Durability: Items manufactured using resin infused fiberglass are known for their durability and longevity, withstanding harsh marine environments.

The Cost Conundrum: Why is Resin Infusion so Expensive?
Advanced Technology and Equipment:
The high cost associated with resin infusion can be attributed to the advanced technology and specialized equipment required for the process. From vacuum pumps and resin distribution networks to infusion mesh and flow media, each component plays a crucial role in ensuring a flawless infusion. Additionally, the use of robotic technology for precise resin application further drives up the expenses.
Increased Resin Consumption:
In resin infusion, a higher quantity of resin is used compared to traditional methods to achieve the desired resin-to-fiberglass ratio. This increased quality as well as quantity of resin + consumption contributes to the overall cost of the process, as top-quality resin comes at a premium price.
Capital Investment Barrier:
Despite the numerous benefits of resin infusion, the capital investment needed to adopt this technique acts as a barrier for many boat builders. The initial set-up costs, maintenance expenses, and training requirements make it challenging for your every day boat builder to justify the transition to resin infusion and adopt into their building process.

The Dilemma for Boat Builders: Why the Majority Struggle with Resin Infusion
Financial Constraints:
For small to medium-scale boat builders, the daunting upfront costs associated with resin infusion make it financially unfeasible. The need to invest in high-tech machinery, expert training, and ongoing maintenance surpasses the budget of many builders, limiting their ability to adopt this groundbreaking technique.

Skill and Expertise:
Resin infusion requires a specialized skill set and in-depth training to execute the process flawlessly. Many builders lack the expertise needed to master resin infusion, further deterring them from incorporating this advanced technique into their boat-building practices.
A WORD TO THE WISE - DON'T BE FOOLED!
Not all Resin Infusion construction methods and processes are the same. This applies to the product, the facility and the manufacturer. While some brands claim to use "Resin Infusion" in the manufacturing of their product, they fail to make the considerable investment to necessary to achieve an Product truly worthy of the "Resin Infused" Name. The Worlds Premier Resin Infusion component manufacturers including our state of the art laminating facility, Make the investment and spare no expense to achieve the best possible quality Product. This Investment goes from the Premium Quality Supplies and Product we use including the very Resin + Fiberglass component, all the way through to our sealed temperature, Dust and humidity controlled chambers and of course through to our computers, Vacuums and other component to ensure their is no compromise in the hulls we send out on the water.
The Spartancraft Approach:
Spartancraft, an Australian boat brand now renowned for our innovative design and manufacturing processes, has embraced resin infusion to elevate their boat-building standards. The precision and quality achieved through resin infusion align perfectly with our commitment to excellence and customer satisfaction.

In Conclusion
Resin infused fibreglass stands as a testament to the continuous evolution and innovation within the boat-building industry. While the cost implications and technological barriers pose challenges for widespread adoption, the superior quality, durability, and performance offered by resin infusion are undeniable. As technology advances and knowledge spreads, more builders may find a way to overcome these hurdles and unlock the full potential of this transformative process.