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Tungsten Powder - 3 ouncesa
Pinewood Derby Weight
Three ounces of Tungsten Powder
What is Tungsten?
Tungsten is a metal with one of the highest densities. Tungsten is 1.7 times more dense than lead, 2.4 times denser than steel, and 2.7 times denser than zinc.
How to Use this Product
Tungsten Powder is finely ground tungsten. In this powdered form, it has approximately the same density as solid lead. When mixed with epoxy, the density decreases.
Tungsten Powder can be used for pinewood derby car weighting as follows:
a3 ounces nominal weight - actual weight ranges from 2.95 to 3.05 ounces.
in Car Bottom
Pour the powder into a hole in the car, and then seal the hole. By weight, this is virtually a direct substitute for lead.
Mix the powder with epoxy, and then fill cavities with the resulting tungsten epoxy.b This results in a density slightly less than lead.
- Make castings by mixing the powder with epoxy, and then pouring the mixture into a mold which has been sprayed with a release agent. This results in a density slightly less than lead.
The casting in the photo was made in the bottom of a small bottle. Elmer's Slide-All was used as the release agent.
bUse 30 minute epoxy, and mix only the amount that can be used within 30 minutes. Mix the epoxy first in a disposable container. Slowly stir the tungsten powder into the epoxy until the desired consistency is reached. Pour or ladle into the cavity immediately.