Harvakids window film supplier focuses on different kinds of custom window film manufacturing since 2005.
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A heat gun is used when applying window films primarily because during the production of security window films, the direction of the electroplating process is fixed. As a result, when these films are heated to take their final shape during installation, they contract in a specific direction. To minimize the risk of air bubbles creating creases, it is essential to squeegee the film in the same direction as its contraction.