Petrolatum tape, also known as wax tape or anti-corrosion tape, is commonly used for the protection of oil storage tanks against corrosion. It is a non-hardening, self-healing tape that provides a barrier to moisture and oxygen, preventing corrosion on the tank surface.

Petrolatum tape is composed of a flexible backing material, typically made of polyethylene or polyvinyl chloride (PVC), coated with a thick layer of petrolatum or petroleum-based wax. This coating acts as a barrier, sealing out moisture and preventing the corrosion process from occurring.

To apply petrolatum tape for corrosion protection on oil storage tanks, the following steps are typically followed:

1. Surface Preparation: The tank surface should be thoroughly cleaned and free from any dirt, rust, or loose paint. It is important to ensure a clean and smooth surface for proper adhesion of the tape.

2. Tape Application: The petrolatum tape is wrapped around the tank, overlapping each layer by approximately 50%. It is important to apply sufficient tension to ensure a tight fit and complete coverage of the tank surface. The tape can be easily molded to irregular shapes and contours of the tank.

3. Mastic Filler: In areas with protrusions, welds, or other irregularities, a mastic filler may be applied before wrapping the tape. The mastic filler helps to provide additional protection and ensure a smooth surface for the tape application.

4. Overwrapping: After the initial layer of petrolatum tape is applied, an additional layer of PVC or polyethylene tape may be applied as an overwrap. This overwrap provides added mechanical protection and enhances the overall durability of the corrosion protection system.

Petrolatum tape is known for its long-term effectiveness in protecting oil storage tanks against corrosion. It is resistant to water, salt, and various chemicals, making it suitable for both above-ground and underground tanks. Additionally, it is easy to install and requires minimal maintenance.

It is important to note that proper surface preparation and application techniques are crucial for the effective performance of petrolatum tape. Regular inspection and maintenance should also be conducted to ensure the integrity of the tape system and address any potential issues promptly.

Uses

For long-life corrosion protection,

sealing and waterproofing of atmospheric buried and submerged metal surfaces.

High degree of conformability

application over irregular surface profiles including gas utility, sewer, potable water, mining,

Application

55% overlap for all applications,

For vertical applications the tape shall begin at the bottom and proceed up – providing a“weatherboard” overlap.

“cigarette wrapped” when space is too restricted or confined to apply in the preferred spiral manner, with the overlap on the topside of the pipe –providing a “weatherboard” effect.At the completion of each roll, smooth the overlaps by hand. Maintain a 100mm overlap when overlapping one roll with the end of a new roll.

Properties

Package

Tape Width	㎡/Roll	Rolls/Carton
50mm	0.50	36
75mm	0.75	24
100mm	1.0	18
150mm	1.5	12
200mm	2.0	8
300mm	3.0	6

CNPetro Hitech Co.,LTD is a well-known high-tech company mainly engaged in research, development, production, and sales of a complete set of pipeline anti-corrosion products and equipment, as well as anti-corrosion products for offshore pier piles, and providing related engineering construction and technical services. Its headquarters are located in Tianjin, China. The company has successively invested and established industrial companies such as CNPetro Haitai Technology Development Co., Ltd. and CNPetro Engineering Construction Co., Ltd. The company has a total investment of over 10 million yuan and a total of over 100 employees, including 5 senior engineers and 20 engineers. 60% of the employees have bachelor's or graduate degrees. The company has obtained 5 national registered trademark rights, 2 independent intellectual property patents, 5 patents are currently being applied for, and has passed the "Technology Enterprise" certification in Tianjin

Quality certification. CNPetro Hitech Co.,LTD has an internationally leading production center for pipeline anti-corrosion tape and marine anti-corrosion system products, covering an area of over 4000 square meters. Its main products include new high viscosity polyethylene anti-corrosion tape, polypropylene anti-corrosion tape, UV resistant linear anti-corrosion sealing tape, marine anti-corrosion tape, petrolatum based anti-corrosion tape for valve flanges and pipe fittings, and waterproof and anti-corrosion sealing system for tank edge plates Viscoelastic body products, marine armor anti-corrosion protection products for splash zones of steel piles and cement piles in seawater, and special anti-corrosion protection systems for special-shaped steel structures. The annual comprehensive production capacity has reached a production scale of 5 million square meters and 6000 tons.

CNPetro has a pioneering and enterprising technology and management team, with strong research and service capabilities, complete production and testing equipment, and a complete ISO9001 quality assurance system. The production equipment is excellent, and the product quality is excellent. CNPetro has many internationally leading core technologies. As a member unit of the China Petroleum Engineering Construction Association, the company has obtained the qualification certificate of "Qualified Supplier" issued by China Petroleum Technology Development Corporation, and has become a member unit of China Petroleum Energy No.1 Network. It is also a qualified supplier of anti-corrosion materials for Sinopec and CNOOC.

CNPetro excellent reputation and refined products are well-known to customers around the world. Its excellent products and perfect technical service network have earned China National Offshore Oil Corporation an excellent reputation and reputation both domestically and internationally. The technical experts of the company actively participated in two national industry standards issued and implemented by China National Petroleum Corporation and the Ministry of Construction: the People's Republic of China Petroleum and Natural Gas Industry Standard SY/T0414 "Technical Standard for Polyethylene Adhesive Tape Anticorrosion Coating of Steel Pipelines" and the People's Republic of China Engineering Construction Industry Standard CJJ95-2003 "Technical Specification for Corrosion Control of Urban Natural Gas Buried Steel Pipelines".

As a global leader and innovator in anti-corrosion tape technology, the new environmentally friendly anti-corrosion products produced by CNPetro have been certified by the Chinese Society for Corrosion and Protection, inspected by the Corrosion Testing Center of the China Petroleum Pipeline Science Research Institute, and inspected by the Quality Supervision and Inspection Center of the Anti Corrosion and Insulation Products of China National Petroleum Corporation (SY/T) and the American Association of Corrosion Engineers (NACE) The American National Standards Institute/American Institute of Hydraulic Engineering ANSIA AWWA, German DIN standards, Arab National Petroleum Corporation and other international standards have won the favor of domestic and foreign users. The products have been widely used in industries and fields such as petroleum, chemical, gas, shipbuilding, water supply and drainage, external anti-corrosion protection of thermal pipelines, sewage treatment, power and telecommunications, building waterproofing, highway and track construction, metallurgy, civil aviation, and marine terminal construction.

CNPetro has established a comprehensive technical service and warehousing distribution network. We have established offices and warehousing distribution centers in Zhejiang, Jiangsu, Shanghai, Guangdong, Guangxi, Gansu, Qinghai, Hubei, Hunan, Liaoning, Shaanxi, and Xinjiang, enabling us to wholeheartedly and timely serve our more than 5000 users. In many large-scale projects in China, such as China Petroleum Development, West East Gas Pipeline, and Sichuan East Gas Pipeline Shaanqi has played a significant role in projects such as the Beijing China Myanmar pipeline and Turkmenistan's oil and gas development. The products are also exported to the United States, Mexico, Japan, South Korea, Australia, Southeast Asia, Central and Western Asia, Africa, the Middle East, and other regions.

The company has now become a highly influential, powerful, technologically advanced, comprehensive supplier of various anti-corrosion tape products and an integrator of seawater pile anti-corrosion solutions both domestically and internationally, with the most complete service system.

CNPetrol, with its strong economic and technological strength, sincerely provides excellent corrosion control solutions to our customers!