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Advanced Composites Group’s Prepregs Used on ‘Spano’ Super Sports Car

06 December 2011

Tooling, automotive body panel system and high visual quality prepregs manufactured by Advanced Composites Group (ACG) are being used by Spanish car manufactured GTA Motor to create their ‘Spano’ super sports car.

According to ACG, the GTA Spano, designed for GTA Motor’s owner Domingo Ochoa by their engineering director Sento Pallardó, boasts advanced material technology, innovative aesthetics, superior aerodynamics, futuristic solutions and established application techniques. ACG say their Out-of-Autoclave (OoA) materials and expertise have played a significant role in making Domingo Ochoa’s dream a reality, enabling them to compete with international prestigious brands both in terms of image and performance.

ACG explain that GTA decided to use material with a proven track record of successful application to manufacture the 99 units of their Spano super sports car. ACG’s OoA LTM217 prepreg and compatible LTF318B surfacing film were selected for the tooling, BPS240 body panel system for the bodywork, and a combination of ACG’s LTM24ST and LTM26EL high visual quality cosmetic prepregs for the interior and exterior cosmetic trim panels. For high impact resistance in certain areas of the car, GTA Motor is using ACG’s VTM264 resin system on a hybrid aramid/carbon reinforcement. 

BPS240 is ACG’s two-ply, partially impregnated, oven/vacuum bag processing, epoxy prepreg system specifically designed for the manufacture of body-in-white panels which they say has excellent surface quality from vacuum-only processing at cure temperatures between 85 to 150°C. The first ply utilises ACG’s ZPREG partial impregnation technology, which consists of a structural fabric coupled to a surface scrim and a high performance resin system. The second ply combines low-density syntactic core material and structural fabric to create significant panel rigidity, and all delivered in a rapid layup format. BPS240 is designed to be ready for painting with minimal preparation. ACG say that in many instances, paint can be applied directly to a degreased panel taken straight from the mould tool. Moreover, they say excellent environmental performance can be expected from panels painted in Hi-Bake & Lo-Bake paint systems.

ACG claim their LTM217 tooling prepreg offers GTA Motor the best solution for the manufacture of affordable, high temperature capable composite tooling. ACG’s LTF318B surfacing film, used in conjunction with LTM217 tooling prepreg, employs ZPREG selective impregnation technology designed to achieve a high quality surface finish on composite mould tools manufactured via low pressure, vacuum bag processing.

For cosmetic applications requiring a UV stable, superior visual quality surface finish, GTA Motor selected ACG’s OoA LTM24ST, a controlled rheology resin matrix which is used for the surfacing ply of components moulded from LTM26EL prepreg. ACG explain that LTM24ST surface ply is partially impregnated to give asymmetric tack, and promotes a flaw-free, smooth surface and a low void content laminate under oven/vacuum bag moulding conditions, providing the exquisite, ultraviolet stable finish required for a car of this class.

Hugo Sosa, Designer and Head of Composites at GTA, said “We selected ACG over other composite materials manufacturers for their excellent reputation in the motorsport sector, the wide range of materials (resins and reinforcement) available to us, and the fact that these could be fully tailored for a specific application. ACG also provided outstanding technical customer support at the start of our Spano program.”

Carlos J. Simarro, ACG Sales Manager for Spain and Portugal, said "GTA’s Spano is an amazing supercar; it is a unique combination of advanced technology and an incredible sporting spirit which is very difficult to match. The automotive market is just one of the sectors where we have experienced considerable success, and ACG is proud to apply its own tooling and components technology to help GTA Motor achieve its dream."





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