Most composite repair systems use a “spiral†wrapping method during installation. Even those that aren’t spiral-wrapped still require some form of overlap to ensure proper material placement. But why does this matter?
Engineered composite repairs depend on precise material placement to achieve consistent laminate thickness, which is essential for the structural integrity and performance of the repair. A small deviation in overlap can lead to significant issues—like reducing a 6-layer system to just 2 layers, as specified in the design. This kind of mistake could mean the difference between a repair that’s ready for service and one that needs to be removed and redone at your expense.
In today’s world of advanced technologies, automated equipment, and complex systems, engineered composites still rely on skilled human hands. The components we repair—such as tees, reducers, and elbows—often have irregular shapes and are located in hard-to-reach areas, sometimes less than 100 feet long. Crews must work quickly and adapt to challenging conditions while maintaining quality. That’s why experienced technicians are crucial—they oversee the process to ensure all quality control checkpoints are met according to manufacturer specifications.
Over 20 years ago, HJ3 introduced a simple but effective innovation: a “center stitch†in their fabrics specifically for pipe repair contractors. Though seemingly minor, this feature has become an essential tool for thousands of installers. It helps them maintain accurate 50% overlap during spiral wrapping without guesswork.
The “Center Stitch†acts as a visual guide, ensuring consistent coverage and reliable results. Without it, applicators often have to estimate or “eyeball†the layup, which becomes increasingly difficult on larger diameter pipes. This small addition has made a big impact on the accuracy and efficiency of composite repairs.
After two decades and thousands of successful installations, HJ3 continues to prioritize innovation and customer feedback. We believe that great projects come from strong partnerships and exceptional service. If you're an applicator or operator struggling with outdated fabric technology, tired of inconsistent results, or just looking for a more reliable way to apply composites, give us a call. Let’s build better repairs together.
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