It is made from a plastic material that has the function to electrically isolate, protect and shield the PV cells from weather and moisture. This particular sheet is usually white in color and is sold in rolls or sheets. . Because of the sensitivity of some photovoltaic devices to moisture-induced corrosion, they are packaged using impermeable front- and back-sheets along with an edge seal to prevent moisture ingress. Evaluation of edge seal materials can be difficult because of the low permeation rates involved. . A photovoltaic bonding material keeps the layers of a photovoltaic cell together. New materials can help panels work better. Weather and recycling choices are important. . Edge sealing for solar panels is a critical process that involves several key aspects: 1. Protection against environmental factors, 2.
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