Table 5.

Color characteristics of the composite samples before xenon-arc light weathering.

Sample	L*	a*	b*
Reference	58	7	29
PB_C1	36	−0.6	1.2
PB_C2	40	1	3
PB_C3	40	−1.5	1.3
PB_C4	38	−1.6	1.3
PB_C5	29	−0.1	1.3
PB_C6	35	0.2	4
PB_C7	43	−6	8
PB_C8	46	−2	8
PB_C9	37	−0.4	0.7
PB_C10	46	−0.5	10
PB_C4_CB	26	−0.1	−1