The performance of VHB Tapes is not significantly affected by exposure to sunlight and harsh environments. The long-term ageing resistance lies in the polymer comprising 3M VHB Tapes. The chemical bonds that make up the polymer chains consist of carbon-carbon single bonds that are highly resistant to energy in the form of heat, cold, or ultraviolet light, as well as chemical attack. Outdoor weathering decks around the world are used to collect data on the long-term performance of these tapes. These harsh tests typically show 100% bond strength retention after 2-5 years.