Q:The color of the aluminium-plastic panel is white without protective film. But I've seen other colors that looks like it's painted.

This shows that the quality of the coating of the aluminium-plastic panel you bought is not good. The paint on the surface of the panel should be very even and consistent. There shouldn't be any dark stripe or marks or shades of the same color which usually appear in spraying processing.

Q:I've never been a salesman. My company wants me to do business, but I don't know how to start doing it. I just got into the company soon. I don't know about the film yet. I don't know where to start.

Then you start with phone sales, and look for protective coatings on the Internet. Call, ask, sample, try, and then visit.In short, the business is not accomplished overnight, the long-term accumulation of experience, experience in communication with people, product experience, industry experience.

Q:When should the protective film of mattress be torn off?

You can tear it off because it only has the function of moisture proof.

Q:The site is now waiting for acceptance, but the door on the layer of protective film to tear up a lot of trouble, one day only to tear two or three, now with a hair dryer blowing while tearing effect is not significant, this is the door looks like plastic doors, the speed for master pointing.

Get some soap water or detergent water or washing powder against water, and then slowly tear.Water with sulfuric acid, otherwise it will corrode, soaked with a clean ball.

Q:What's the best way to clean the glue of protective film which is coated on the elevator door? And the fastest way?

I do not suggest to use water (water with washing powder etc.). You can use oil. If possible, you can buy some special stainless steel cleaning oil. If the door is painted, machine oil is okay.

Q:How can the protective film on the burglarproof door be removed after sun exposure?

The first chunk by hand, or small pieces of plastic softening under the opposite side of the membrane and fine flour with wind in the above

Q:When you remove the protective film from your cell phone, how can you remove the glue?

Can be removed with an eraser or alcohol.Ethanol (alcohol) is a good solvent, can dissolve many inorganic compounds, and can dissolve many organic compounds, so commonly used ethanol to medicinal ingredients dissolved or the plant pigment; also used ethanol as reaction solvent

Q:How to clean the keyboard protection film?How to wash the best?

Oh, this is not pay attention to, directly with water can be washed, or you can add detergent or detergent, as long as the decontamination basically no what problem, but should pay attention to the wash to let it dry naturally, not the sun to pull, it is not easy to deform and the keyboard does not match.

Q:Is it necessary to tear off the protective film on surveillance camera?

The image will be clearer if you tear off the film. But of course it won't affect too much if you do not.

Q:What's the advantage of sticking a protective film on your cell phone?

Advantages of mobile phone sticking protective film:1, to prevent the phone screen was scratched, then only need to replace the protective film on it.