PE protection film how to test?

Performance test: on the surface easy to paste stripping, not glue plate bending, with 90 is not broken, do not fall off.

Load test: 360 hours at 20 ℃ - 50 ℃ subjected to 2Kg/2.5c ㎡ load off no adhesive residue surface.

Ageing test: 300W ultraviolet irradiation in 50 under the conditions of 240 hours, no crack, no deformation, tear off surface without adhesive residue phenomenon.

Humidity test: 1 hours light rain +1 hours after 240 hours off, peel the surface no residue.