1. Fiber-Reinforced Matrix: An outer shell that is made primarily of fiberglass
(FRP) is given its shape by a heat-setting plastic resin. The SHOEI helmet
shell owes its ideal function to the integration of organic fibers, as well
as a three-dimensional shaping process in a layered structure. The result is
an outer shell with high strength, but very low weight as compared to shells
that are produced in a conventional way.
2. The Compound Structure: The AIM shell consists of various layers of reinforcing
organic fibers and glass fibers. Compared to an outer
shell that is made only of glass fibers, the AIM outer shell is both lighter
and more elastic, yet has the same strength and is more resistant to penetration
due to the additional use of special fibers.
3. The Synthetic Resin: A specially modified, unsaturated polyester resin
(a so-called heat-setting plastic) is used for the AIM outer shell. This resin
acquires the desired strength and elasticity during the heat hardening process.
This synthetic resin is also extremely resistant to corrosion. With these constituent
parts, we produce outer shells that convincingly produce ideal dampening of
impacts, good elasticity, light weight, and enormously high strength and resistance