Crane Composites, the pioneers of fiberglass Recreational Vehicle (RV) sidewalls and industry leader for over three decades, proudly announces the introduction of its latest innovation, 4th generation FILON coilable exterior sidewalls, offering new levels of performance.

Both FILON G4 and FILON G4+ are engineered for durability while weathering extreme conditions. These next generation products have undergone rigorous testing to ensure enhanced performance versus the current generation in key aspects including weathering and longevity. The Filon G4 design prioritizes durability and functionality, whereas Filon G4+ enhances aesthetics with a higher gloss, reduced fiber visibility, and an exceptional surface appearance. The 4th generation sidewalls achieve their superior performance and appearance without needing to increase thickness and weight. FILON’s product advancements continue to set the standard as superior fiberglass sidewalls for the RV industry.

“FILON has been an industry leader for decades, and we’re always looking for ways to advance our product line based on customers’ needs,” explains Mike Cheney, VP of Recreational Vehicles. “Building on our legacy, the introduction of 4th generation FILON marks a key milestone in our journey to elevate the ownership experience for RVers.”

Crane Composites sets the industry benchmark with FILON sidewalls, which are proudly manufactured in the USA. The brand combines the company’s expertise in composites material science, process, and technology with a deep understanding of customer requirements. Its localized manufacturing, support teams, and R&D center are recognized for delivering quality products, exceptional service, and superb flexibility to respond quickly to customers’ changing needs.