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Increase knowledge! Bubble problem and repairing process of polypropylene anticorrosive adhesive tape

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Increase knowledge! Bubble problem and repairing process of polypropylene anticorrosive adhesive tape

Release date:2018-01-13 Author: Click:

The problem of bubbles in polypropylene anticorrosive tape may be a lot of problems encountered in the construction of tape, and it is also a common problem. There was a blistering problem during the construction process, please don't panic, because this is actually a very normal natural phenomenon. The foaming problem of the adhesive tape will not affect the anti-corrosion quality, nor will it affect the normal acceptance of the project. Because in the industry construction specifications, blistering is allowed. Here's a look at why bubble problems occur in adhesive tapes. (Heat shrinkable mouth cover)

Causes of air bubbles in polypropylene anticorrosive tape:


Regarding the problem of anti-corrosion tape bubbles, this is actually a natural phenomenon of thermal expansion and contraction. It is a normal phenomenon and a permitted phenomenon. Therefore, whether the anti-corrosion tape is air-bubble does not image the construction quality and engineering acceptance. Clients don't have to worry about it. Regarding the phenomenon of anti-corrosion tape bubbles, this phenomenon often occurs in areas with large temperature differences and strong sunlight. Under normal weather conditions, the tape is generally not foaming. But whether it is foaming or not, this is not a quality issue.

一分彩Repairing process of polypropylene anticorrosive adhesive tape:


After the pipeline finds a defect, it should be marked and repaired in time. When repairing it, the damaged part should be trimmed first, loose burrs should be removed, cleaned up and coated with primer. For small-scale pinhole-like defects in pipes, the same tape as the original anti-corrosion layer of the pipe body should be used for patching. When repairing, cut a piece of 100 × 100 mm tape, cut out the rounded corners of the patch, and affix it to the wound after the primer is dry. For areas where the large missing or anticorrosive layer is damaged, so that the pipeline is exposed, the damaged anticorrosive layer should be removed, the edges should be trimmed and smoothed, and then the damaged area should be spirally wound with tape of appropriate width.

一分彩Repair requirements for polypropylene anticorrosive tape:


When repairing, it is necessary to carefully remove a sufficient area of the anticorrosive layer from the defects of the anticorrosive layer of the steel pipe. The remaining part should be intact and firmly bonded to the steel pipe. The edges of the anticorrosive layer at the repaired place should be cut obliquely to increase the bonding strength of the anticorrosive layer at the repaired place and remove the foreign objects in the repair area of the pipeline anticorrosive layer. If the primer is to be applied at the repaired place, the repair material must be applied after the primer is dried.


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Suzhou Qiangjiang Pipeline Anticorrosive Material Co., Ltd.

Contact: Cheng Huiqiang

Contact : Li Cong
Telephone:0512-63982510 Mobile phone:13962536717

Mobile phone:13806256210

Fax:0512-63982520
Address: No. 333, Jinxian Road, Jinjiaba, Wujiang District, Suzhou, Jiangsu
Website:www.diendanthanhly.net

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