Product Description:

The CNPetro Petrolatum Tape is an essential product for pipeline coating. It is a versatile product that can be used for various applications such as house connections and fittings. However, it is particularly suitable for complex parts such as T-pieces that are in connection with petroleum filling materials.

The CNPetro Petrolatum Tape is an anti-corrosive binding with chemical fibers that are based materials like non-woven. This material is coated with modified petroleum on both sides, making it highly adhesive and elastic. It also has a high softening point, which makes it durable and reliable when applied to pipelines.

The CNPetro Petrolatum Tape is designed to be used as an inner-wrapping tape for pipeline coating. It also has an additional layer of outer wrapping tape, which provides mechanical protection for long-lasting coating.

Features:

The product meets NACE RP0375-2006, which makes it an ideal choice for surfaces that aren't well prepared according to SSPC SP 2-3 standards. Unlike many coatings, it conforms perfectly to shapes and profiles, resulting in a smooth, level surface. The coating can also be applied to surfaces that are cold and wet, which makes it unique compared to many other types of coatings.

Furthermore, it's not affected by water, acids, salts, or soil organics, which makes it a highly durable solution. This also makes it ideal for encapsulating lead paint, as it does not react with the toxic substance. It should be noted that this product contains no solvents.

The coating is formulated for ease of application in arctic to tropical temperatures and is designed to be ready for immediate service after application. It is compliant with AS 4822-2008, ISO 21809-3:2008, and AWWA C217 Standards, which is indicative of the superior quality of the product. Additionally, this coating has been in use for over 80 years, and its proven track record suggests that it's a reliable, effective solution for all your coating needs.

Technical Parameters:

Thickness: The average thickness of the material according to ASTM D1000 is 1.15 mm.

Weight: The average weight of the material is 1.50 kg/m2.

Breaking Strength: The minimum breaking strength according to ASTM D1000 is 200 N/50 mm.

Water Vapor Transmission: The average water vapor transmission according to ASTM E96 - 66 Procedure A is 0.006 perms.

Elongation @ Break: The average elongation at break is 10%.

Breakdown Voltage: The minimum breakdown voltage with 55% overlap is 16 kV.

Resistance to Cathodic Disbonding: The average resistance to cathodic disbonding according to ASTM G-8 after 30 days is 180 mm2.

Resistance to Acids, Alkalies and Salts: The material shows excellent resistance to acids, alkalies, and salts.

Maximum Service Temperature: The maximum service temperature for the material is 55°C.

Roll Widths: The material comes in rolls with widths ranging from 50 to 300 mm.

Roll Length: Each roll has a length of 10 m.

Applications:

To prepare surfaces for coating or painting, it is crucial to remove any debris or foreign matter. This can be done by following the guidelines set forth in SSPC SP2 “Hand Tool Cleaning” or SP3 “Power Tool Cleaning”. Alternatively, high pressure water wash of 3,000 - 7,000 psi (20.68 - 48.26 MPa) can also be effective.

After surfaces have been thoroughly cleaned, a thin film of petroleum paste should be applied. Then, spirally wrap the tape around the surface with a 55% overlap. While wrapping, it is important to press out any air pockets and smooth all lap seams.

For surfaces with irregular shapes, such as valves and flanges, it may be necessary to use a Petroleum Filler Mastic or Profiling Mastic. Once these products have been applied, PVC Tape can be used as an outerwrap for mechanical protection. For more information on how to properly apply and select these products, consult the product sheets for each specific item.