Reinforced polypropylene anticorrosive adhesive tape
Manual of polypropylene reinforced fiber anticorrosive tape
1. Use characteristics:
Polypropylene fiber anticorrosive tape is a new type of pollution-free and harmless environmentally friendly anticorrosive product. It can be widely used in water supply and drainage in petroleum, natural gas, chemical industry, urban construction, and external anti-corrosion and repair projects of steel pipelines for oil and gas and gas transportation and steel buried storage tanks. It is a recommended product designated by the Ministry of Construction and the State Environmental Protection Administration to replace "asphalt glass cloth" and "epoxy coal pitch". It has the characteristics of simple construction, impact resistance, aging resistance, tensile resistance, ultraviolet radiation resistance, and high bonding strength. The product base material is a unique modified polypropylene woven fiber cloth, and butyl rubber modified asphalt is used as the anticorrosive glue layer. The base material is a fiber structure that can effectively resist the creep damage caused by soil stress. The aging test proves that its corrosion resistance life is more than 50 years. The test indicators are much higher than the requirements of the SY/T0414-2007 standard. Reach the American ANSI/AWWAC209-00 and NACEMR0274-95 indicators. It is the best choice in pipeline cold anticorrosion construction tape and the most economical choice for anticorrosion.
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2、Performance
Serial number | project name | Polypropylene reinforced fiber anticorrosive tape |
1 | Numbering | SXB |
2 | colour | Black, gray, green or other colors |
3 | Specification model | 50、75、100、150、250、300 |
4 | thickness（mm） | Basement membrane 0.30 0.30 0.55 0.40 0.50Glue layer 0.85 0.90 1.10 0.95 1.00 1.05 |
5 | Tensile StrengthMpa | ≥60 |
6 | Peel strengthN/cm | For primer steel ≥45 |
7 | Dielectric strengthkv/mm | ≥30 |
8 | Volume resistivityΩ.m | ＞1x1012 |
9 | Water vapor transmission rate（24h）mg/cm2 | ＜0.45 |
10 | Heat aging test（2400h） | ＜25% |
11 | Resistance to UV aging（168h） | ≥80% |
12 | Water absorption | ＜0.35% |
13 | Operating temperature（℃） | 5-50 |
3、How to use:
(1) Surface treatment of steel pipes: remove rust, weld slag, burrs, oil, dirt and keep clean and dry. Manual rust removal should reach St3 level, and mechanical rust removal should reach Sa2 level, and meet the requirements of SYJ4007-8 6.
(2) Primer: Use special matching primer, keep away from fire when using, stir evenly and apply with clean brush, roller or other mechanical methods. Primer dosage: manual coating 12㎡/L mechanical coating 20㎡/L
(3) After the primer surface is dry (usually 5-10 minutes), the tape can be wound.
(4) Backfilling of the lower ditch: After passing the quality inspection, the ditch can be lowered.
4、transportation and storage:
(1) The tape is protected from exposure, rain, and crushing deformation during transportation.
(2) When it is subjected to violent freezing below 5°C during transportation or storage, it must be stored at about 20°C for 48 hours before construction.
(3). It should be stored in a warehouse with a temperature of 5-30℃ and a temperature of <75℃. The storage period is 12 months. Keep away from heat and open flames.