Tungsten Putty (1 ounce)
Tungsten Putty comes in 1oz and is the easiest way to fine tune the weight of your Pinewood Derby, Tungsten Putty is made from 100% pure Tungsten Powder and is very malleable, easy to apply and will not dry out even after several weeks exposed to air and sunlight. It is very simple to use all you have to do is take a piece, knead it until it is pliable, and press it onto the car. It will stick best if pressed into a hole or cavity on the car.
Why use Tungsten??? Tungsten is a metal with one of the highest densities weighing in at 1.7 times heavier than lead. Only gold, platinum, and a few other rare metals have a similar density. Having more concentrated weight means having more control with weight placement in your car to achieve the center of mass that you are targeting. Tungsten is also non-toxic and environmentally friendly so it is safe for children and adults to handle and work with.