splineTEX  is a new process for the production of seamless 3D curved hollow fibre composite profiles, mainly CFRP tubes with high quality surface. While the process type splineTEX plast is primarily an inexpensive material substitute for steel and aluminum tubes, splineTEX  flex is used in areas where weight reduction and geometry optimization play an important role. The profiles are made of a standardized or customized semifinished from the role, which consists of a flexible inliner, the woven fibre layers and a flexible outliner.

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The forming process for SplineTEX is different with conventional production methods. The technology-specific inliner/outliner concept of the semifinished enables the production of composite structural elements without costly molding and without costly post-processing such as sanding and varnishing. The shaping method depends on the required tolerance accuracy, the component geometry, the required fibre volume content and the quantity. The possible options are: free Forming, forming with holding device or forming with molds.

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For low requirements on the tolerance accuracy and for large-sized components in small numbers suits the possibility of free forming, in which the semifinished product is made with only a few holding points. For large-scale components with increased demand on the tolerance accuracy and for low to medium quantity production of structural elements, the manufacturing in holding devices or templates that support the geometry linear over most of the length of the component is recommended. The holding devices and templates can be made from both rigid foams of low density as well as wood or metal. Components with high demands on precision and with complex geometries, such as deviations from the circular cross-section, are made in molds. Not in expensive metal molds, but rather in inexpensive tools of block materials (such as medium density fibreboard, high density foams)

After the Hardening Process, the strength of the material will be considerably increase. It was soft and bendable before hardened. By injecting resin into the tube, the resin will combine with the carbon fiber. The material would be hardened once the resin is dry.