I Function
Cold-applied Polypropylene Fortifying Fiber Anticorrosion Tape is a new-type environmental protection anticorrosion product, which is free from pollution or other damage. Crowned with the title “championship in anticorrosion”, it represents the highest level of cold-applied anticorrosion tapes at home and abroad. It can be used for the purpose of steel pipe and underground steel tank surface corrosion resistance and rehabilitation for various pipelines in facility projects of petroleum, petrochemical industry, city gas, oil and gas storage and transportation, power, water supply etc. Therefore, it has been recommended by National Construction Department, Environmental Protection Bureau to take place of “pitch glass fabric” and “epoxy coal pitch”. Easy and convenient in application it performs well in shock resistance, aging resistance, stretching resistance, UV resistance, and adhesive strength.
The backing material of the product is modified PP woven fabric cloth, and the anticorrosion layer of it is butyl rubber modified asphalt. Since its backing material is of fabric structure it can resist effectively the creep caused by soil stress. In addition, the ageing test proves that its service life is beyond 50 years and all the indexes of the items surpass the standard prescribed in SY/T0414—98 and reach that of ANSI/AWWAC209-00 and NACEMR0274-95. It is the best choice for cold anticorrosion project and also the most economical one.
II Performance Index
Serial No. | Item | Polypropylene Fortifying Fiber Anticorrosion Tape |
1 | Specifications | SXB |
2 | Color | Black, grey, green and other colors |
3 | Model No. | 50, 75,100, 150, 250, 300 |
4 | Thickness（mm） | Film 0.30, 0.30 ,0.70, 0.55, 0.40, 0.50 |
Adhesive 0.85, 0.90, 1.10j 0.95, 1.00, 1.05 |
Total 1.15 ,1.20 ,1.40 ,1.50, 1.60,1.65 |
6 | Tensile Strength （Mpa） | ≥60 |
7 | Peel Strength （N/cm） | to Prime Pipe ≥45 |
To Adhesive Backing Material ≥25 |
8 | Dielectric Strength （k v/mm） | ≥30 |
9 | Volume Resistivity （Ω.m） | >1x1012 |
10 | Water Vapor Transmission Rate （24h）mg/cm2 | <0.45 |
11 | Thermal Antioxidation（2400h） | <25% |
12 | Ultraviolet Oxidation Resistance（168h） | ≥80% |
13 | Water Absorptivity | <0.35% |
14 | Application Temperature（℃） | 5-50 |
III Methods of Application
1) Surface treatment: Remove rust, welding spatter, burr, oil or filth and keep it clean and
dry. If the rust is removed manually, the effect should reach St3; if mechanically, the effect should reach Sa2 and comply with SYJ4007 86.
2) Primer coating: Specialized matching primer is supposed to be used. During the process keeping it away from the fire, mix it evenly and use clean brush, roller or other mechanical method to coat it. The appropriate primer quantity applied is 12㎡／L by manual coating, and 20㎡／L by mechanical coating.
3) 5 to 10 minutes after the prime coating surface dried, the wrapping can be started.
4) Back to the duct: After passing all the inspection, it can be put back to the duct.
IV Transportation and Storage
1) Keep it away from insolation, rain, or pressing.
2) If it has been stored or transported in the temperature below 5℃, it has to be put in the place at about 20℃ for 48hours before it is installed.
3) The storage time is 12 months. It should be kept in a cool place at5～30℃,＜75℃, away from heat or open fire.
