Polyethylene Balls (High Density) is an FDA approved plastic. It is more stress crack resistant than polyethylene low density balls.
Physical Properties
| Specific Gravity | 0.96 |
| Water Absorbtion (Method A, 24hr)% | —– |
| Tensile Strength at Yield, 100 psi | 4.2 |
| Elongated at Yield, % | 900 |
| Elastic Modulus In Tension, 10 to the 5th power psi | —– |
| Flexural Strength in Tension, 10 to the 5th power psi | —– |
| Elastic Modulus in Flexure, 10 to the 5th power psi | —– |
| Compressive Strength at Yield, 1000 psi | —– |
| Rockwell Hardness (Method A) | R30-60 |
| Maximum Service Temperature in °F | 160 |
| Natural Color | milky white |
| Color Possibilities | unlimited |
| Clarity | translucent to opaque |