The reason why the polypropylene anti-corrosion tape is lifted

Time:2019-02-16 12:29:35

Polypropylene tape is a non-contaminating anti-corrosion material. This kind of tape can be used for cold construction. After the construction of polypropylene anti-corrosion tape, there is sometimes a lifting phenomenon. What is the reason?

First, there is a problem with stickiness

Before the construction of the polypropylene anti-corrosion tape, it is necessary to apply a uniform thickness of the primer to the surface of the pipeline or the construction object. When the thickness of the primer is insufficient or uneven, the polypropylene tape of the later construction will be used because of the viscosity. Not big enough, the phenomenon of lifting occurs.

Second, the pressure is not enough

In some construction projects, in order to ensure better adhesion of polypropylene anti-corrosion tape, it is necessary to use mechanical or labeling machine for pressing, and the pressing process should be uniform in intensity and suitable in size. When the pressure is too small, there will be some time. The situation of curling.

Therefore, in the construction process of polypropylene anti-corrosion tape, in order to better the bonding effect and construction effect, the primer coating must be sufficient and uniform, and the pressing force should be appropriate during the construction process, so as to avoid the occurrence of the lifting phenomenon.

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