Acrylic compounds are a kind of very stable organic materials, especially with very good UV and chemical resistance. The results of 7000 hours' simulated accelerated aging test show that its performance is better than the initial performance; In humid and hot Florida, hot and dry Arizona and Minnesota with great temperature difference between cold and hot, aluminum, painted glass and metal are bonded with VHb. After 2 ~ 5 years of outdoor aging, the results show that the strength is 100% maintained.
