Alumide is an aluminum-filled nylon 12 with a metallic gray look, high stiffness, and heat deflection around 144 °C under load, suited to rigid parts, jigs, and models, though it is less flexible than standard nylon.
Alumide is nylon 12 filled with aluminum powder (about 50% by weight), giving parts a metallic gray appearance. Compared with standard nylon 12, it is more than twice as stiff with similar tensile strength, but much less flexible and heavier.
It deflects under load at about 144 °C, well above standard nylon 12, and the aluminum makes it easier to machine, with low tool wear.
Alumide is well suited to jigs and fixtures, metallic-look models, and small-run mold inserts.