The processing of thermoplastic materials is generally associated with the use of elevated temperatures and pressure that bring the material into a fluid/solid mixed state, which facilitates its deformation. Such processes also require the use of dies, tools or molds that increase capital investment and restrict the shape of the final product to a specific geometry, usually having tight tolerances, where the tools or molds in use do not allow for any flexibility in terms of slight geometrical modifications. The room temperature, out-of-mold solid-phase forming of thermoplastics is therefore desirable in terms of energy savings and changes in the targeted final shapes. The present work seeks to pave the road for the solid-phase forming (e.g. bending and torsion) of metallic profiles bonded to thermoplastic polymers. In order to achieve this, the mechanical properties of a polyamide 12 (PA12) are modified with the addition of a PA12-elastomer. A measuring mixer connected to a torque rheometer is used to produce compound materials containing varying amounts of elastomer in sufficient quantities to characterize their mechanical properties. A compound with optimal elastomer content is thus selected for larger scale compounding by means of twin-screw extrusion. Further inspection of the resulting mechanical properties is contrasted with a thorough analysis of the material properties that enable the uniform and predictable deformation of a plastic in its solid phase.