A laminator is crucial for bonding EVA films to substrates such as glass or photovoltaic cells. It applies heat and pressure to ensure proper adhesion, eliminate air bubbles, and create a uniformA laminator is crucial for bonding EVA films to substrates such as glass or photovoltaic cells. It applies heat and pressure to ensure proper adhesion, eliminate air bubbles, and create a uniformA laminator is crucial for bonding EVA films to substrates such as glass or photovoltaic cells. It applies heat and pressure to ensure proper adhesion, eliminate air bubbles, and create a uniform