
RTM, Hand Lay-Up, Filament Winding and Pultrusion: How to Choose the Right Resin
Choosing the right resin is essential for achieving optimal performance and production efficiency in composite manufacturing. Different processes—RTM, hand lay-up, filament winding, and pultrusion—place distinct demands on resin viscosity, curing behavior, mechanical strength, and chemical resistance. By aligning resin characteristics with specific process requirements, manufacturers can improve fiber wet-out, surface quality, structural integrity, and long-term durability. A process-oriented resin selection strategy enables more stable production and higher-quality composite products across automotive, industrial, construction, and corrosion-resistant applications.










