The plastic pipes we usually see are mostly white, blue and gray. Some people say that the white plastic pipe is non-toxic, the gray plastic pipe is poisonous, and some people think that the gray plastic pipe is a regeneration pipe and is unwilling to use it.

In fact, the tube is toxic and non-toxic and does not depend on its appearance color, but on its intrinsic quality, so-called white, blue or gray.

According to the relevant regulations and the special needs of users, the manufacturer has added titanium dioxide, titanium cyan or carbon black to the raw materials to produce white, blue and gray pipes. As for toxic or non-toxic, it depends on the inside of the pipe. Whether the content of lead, cadmium, tin, mercury, vinyl chloride monomer meets the standards set by the state.

As for the general use of gray plastic pipes as regeneration tubes, it is unscientific. The materials of the regeneration tubes are of different origins and the colors are mixed. The manufacturers must increase the amount of colorants for the appearance, deepen the color, dress up the appearance, or gray or black. However, it cannot be concluded that all gray and black plastic pipes are regenerative pipes.

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