UV Resistance of Adhesion Interface on SCG

Test specimens were prepared as shown in Fig. 7, and were cured at 23°С for four weeks. The specimens were set in a Xenon tester so that the adhesion interface could be directly irradiated through the SCG. After a certain irradiation period, the test pieces were evaluated by a 180° hand peeling method (Table 4).

It was confirmed that the NTP sealant maintained excellent adhesion to SCG under UV irradiation because it showed cohesive failure after UV irradiation of up to 10000 h.