When the heavy hammer fell from a height, the expected splashing of glass did not occur - the Huakai PVB film and SGP film sandwiching between the two layers of glass, like an invisible hand, firmly held up all the fragments, and the entire piece of glass still maintained its intact shape.

During the impact test, even though fine cracks appeared on the outer layer of glass, the Huakai PVB film and SGP film in the middle maintained a stable adhesive force. The fragments were firmly adsorbed on the film surface without any falling off or splashing.

This "unbreakable" property stems from a unique polymer chain structure - millions of vinylpyrrolidone molecules are intertwined with each other, forming a three-dimensional network that combines elasticity and strength. It can not only buffer instantaneous impact forces but also maintain adhesion for a long time.

From building curtain walls to car front shields, Huakai's PVB and SGP films have proven through repeated experimental data that true safety is not a head-on confrontation, but a combination of firmness and flexibility in protection.