Pinewood Derby incremental tungsten putty weight

       Tungsten by itself is an unstable material, and can be with a bonding alloy of nickel, copper, iron or a combination of them, when mixed with a polymer binder, tungsten putty come out.Tungsten putty is great for high density weighting and counterweighing. It is soft ,pliable and non-toxic.

Pinewood Derby incremental tungsten putty weight product display: