Prepregs formulated for your success! The TCR Advantage: Clean. Simple. Sustainable. TCR Prepregs are formulated to allow mess-free processing, ambient transport and storage for up to 12 months, and flexible cure cycles. Our White Glove Services mean that every order is tested, verified and certified to meet your order requirements. Additional "White Glove Services" include: Custom Cure Cycles, Design Assistance, Material Specification Development, Filament Winding Assistance, and Composite Testing.