Table 4.

Barcol hardness values of the samples before and after the UV treatment.

	Barcol Hardness
Sample	Untreated	UV Exposure
0 wt.%	46 ± 1	49 ± 2
1 wt.%	42 ± 5	48 ± 2
3 wt.%	46 ± 2	49 ± 2
5 wt.%	42 ± 2	47 ± 2