fiber tape
Anticorrosive polypropylene
Anticorrosive tape
I. Purpose & Features: 　
　　 Anticorrosive polypropylene fiber tape is a new kind of pollution-free and nondestructive anticorrosive product, representing the top level of cold-wrapping tape both at home and abroad and called “anticorrosive champion”. It can be widely used in such anticorrosive constructions as water supply, steel pipelines for conveying oil, natural gas and coal gas or underground tank outer anticorrosion or rehabilitation work in oil, natural gas, chemical engineering and municipal constructions. It is the appointed product replacing asphalt glass cloth and epoxy coal tar by the National Construction Department and Environmental Protection General Bureau. The product is characterized by its easy construction, shock resistance, aging resistance, elongation resistance, ultra-violet light resistance and high bond strength.
　 The basis material of the product is the unique modified polypropylene knitted fabrics, adopting modified butyl rubber asphalt as anticorrosive rubber. Its fabric structure can effectively resist the creep fracture due to the soil stress. Aging test shows that it can endure 50 years of corrosion, The product according with the US standards ANSI/AWWAC209-00 and NACEMR0274-95 makes it the best tape in cold antisepsis pipe construc-tion.the index of which overpasses that of the SY/T0414-98 Standard. It is the best and the most economic choice


II. Main Technical Specification:

Item Unit Ordinary Strengthened Specially strengthened

Serial Number
- XW-T760 XW-T770 XW-T780

Color - Black, Gray, Green or others
Specification mm 50、75、100、150、250、300、500
Rubber

thickness Basement membrane thickness
mm 0.30 0.30 0.60 0.60
Bondline thickness
mm 0.85 0.90 1.10 0.95 1.00 1.05
Aggregate thickness
mm 1.15 1.20 1.40 1.50 1.60 1.65

Tensile strength
Mpa ≥60
Peel

strength To priming painted steel
N/cm ≥45
To priming painted steel
N/cm ≥25
Volume resistivity
kv/mm ≥30

Water vapor permeability
Ω.m ＞1x1012

Water vapor permeability（24h） mg/cm2 ＜0.45

Thermal antioxidation aging test2400h % ＜25
Antiultraviolet light 168h % ≥80

Water absorption % ＜0.35
Application temperature ℃ 5-50



III. Methods of application:
(1) Steel pipe surface treatment: rust removal, removing welding slag, burr, oil and filth and keeping dry and clean. Manual rust removal should reach St3, mechanical St2, meeting the request of SYJ4007-86.
(2) Primer coating: adopting customized mating priming paint. Keep away from fire. Spreading equably no matter brushing, rolling or spraying. Priming paint dosage for manual work 12 ㎡ /L , mechanical construction 20 ㎡ /L.
(3) When surface dry (in 5-10 minutes), wrapping can be done.
(4) After the quality inspection is done, the pipes can be put back into the ditch and be buried.
IV. Transportation and Storage:
(1) Avoid exposure to direct sunlight, drench, crushing and distortion when tapes are transported.
(2) Construction can be carried out after 48 hours storage around 20 ℃ if the tapes are stored or transported below 5 ℃.
(3) Store where it is cool (5-30℃), humidity below 75%. Shelf life: 12 months. Away from heat and open flame.