1.Definition:Regardless of the color depth of film, the clarity of high-quality film at night should be more than 6m, while the inferior film will be hazy feeling bad.
2.Touch: Good membrane have thick smooth feeling, and inferior membrane feel is thin and crispy, easy to wrinkle.
3.colour :The pigment of Good membrane is unmistakable in the film, durable, Not easily discoloration. the paste process by scraper scrape will not decolorize. But the poor film's color is in the glue, after torn the film lining, scrape with the fingernail, the color has fade, on the diaphragm where has scraped by the fingernail will become transparent.during the paste process when the scraper wiper Sometimes the color will be off themselves, such membranes will lose color in the year, and fade more obvious after one year.
4.The bubble: when the car ripped the plastic lining membrane, and then reunited, the poor quality film will be bubbly. And the high-quality film remain intact. Windscreen heat
proof transparent film, evolution from transparent bullet-proof membrane, and it is more than 70% light transmission.
5.Insulation: solar film is good or bad depends on the insulation, and this is very difficult to the naked eye and hand identification. Through a simple test for comparison: put the glass with the film over an iodine-tungsten lamp, no hot feeling when touch means this film is high-quality ,but if you feel hot as soon as you touch the glass, it means there’s some problem with the film, it’s a poor film.
Simple method to test a good film
1.Fading test: membrane, gush the glue layer with carburetor cleaner, scrape with the
fingernail, the poor-quality explosion-proof membrane will fade the color soon, become
transparent film, so-called low-grade membrane.
2.Wear-resisting test:the front of membrane should be folded in half, rubs with the thumb moves, can't be moved is the high-quality one, or the poor-quality one.
3 .Every ultraviolet:let a money detector‘s ultraviolet lamp shine on the security printing of RMB, then put the film between the lamp and the money, you will see the ultraviolet ray become weak even disappeared, this can judge the intensity of every ultraviolet.
4.Outward appearance:look at the surface of explosion-proof membrane you can see,if presents the sand, is not clear, presents white spot, glue lines or some other slight
Established in 2008, Hangzhou Guangke New Window Film Co., Ltd. a professional manufacturer engaged in the research, development, production, sale and service of Anti-blast film, Heat insulation membrane and Building membrane. We are located in Hangzhou, Zhejiang and have convenient transportation access. Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. ... View detail