I. Introduction:
Some manufacturers also call it PipeCoat, a new type of polypropylene reinforced fiber anticorrosive tape. Different manufacturers have different product models and names.
Second, the composition:
The base material of this product is a unique modified polypropylene woven fiber cloth, and the anti-corrosion adhesive layer adopts butyl asphalt rubber. Its base material is fiber structure, which can effectively resist creep damage caused by soil stress. The aging test shows that its corrosion resistance life is more than 50 years, and all the detection indexes are much higher than SY/T 04 14-2007, and completely reach the indexes of American ANSI/AWWAC209-00 and NACEMR0274-95. It is the best choice for pipeline cold anticorrosion construction zone and the most economical choice for anticorrosion.
Third, the use method:
(1), steel pipe surface treatment: derusting. Manual derusting shall reach Grade St3 and mechanical derusting shall reach Grade Sa2, and meet the requirements of SYJ 4007-86.
(2) Primer: Special primer should be used.
(3) After the surface of the primer is dried, the adhesive tape can be wound. Note that this tape belongs to the tape with isolation film specified in SY/T04 14—2007. Construction should be carried out in strict accordance with the adhesive tape with isolation film, and the general manufacturer will provide specific usage methods.
(4) Backfilling in the ditch: After the quality inspection and acceptance, drainage in the ditch can be carried out.