Table.
Radiography Densitometer Results
| Composite Group | Aluminum Equivalentsa,b,c |
|---|---|
| Commercial control, 3M Corp. Z100 | 2.51 (± 0.09) |
| 3M Z100 + 35 wt% chopped fibers | 1.37 (± 0.21) |
| Commercial control, Kerr Corp. XRV | 2.29 (± 0.05) |
| Kerr Herculite XRV+35 wt% chopped fibers | 1.40 (± 0.06) |
| Exp. paste + 35 wt% chopped fibers | 1.85 (± 0.06) |
a
Aluminum equivalents expressed as millimeters of 99.99% pure aluminum thickness per millimeter of composite thickness.
b
ADA Seal of Acceptance Guidelines and ADA Composite Standard #27 for Aluminum Equivalents are 1.5 and 2.0, respectively.
c
Values are means ± 1 standard deviation of 5 specimens (N = 5).