CNPetro-Tape 100mm Width x 10m Roll Marine Petrolatum Wrap Tape for Piles corrosion protection

Marine Petrolatum Tape is a heavy-duty, high-conformability anti-corrosion wrapping tape engineered for the long-life isolation, sealing, and waterproofing of atmospheric, buried, and submerged metal surfaces. It serves as the primary corrosion protection layer within the comprehensive PileCoat system utilized on jetty piles.
The compound is formulated to maintain its long-term plasticity and composition across an extensive thermal range, remaining completely non-hardening and non-cracking. This allows the anti-corrosive barrier to accommodate continuous substrate vibrations, structural shifts, and thermal movements without structural failure.

Material Composition & Component Design
The tape is manufactured through a multi-layered composite design to guarantee chemical and physical stability in aggressive marine environments:
Synthetic Fabric Carrier: A non-woven, stitch-bonded synthetic fabric structure that serves as the core matrix.
Petrolatum Compound: The carrier is fully saturated and coated on both sides with a thick, neutral petrolatum compound blended with inert fillers and active corrosion inhibitors.
Backing Film: Reinforced with a High-Density Polyethylene (HDPE) film layer to provide immediate external shielding during the wrapping process.

All physical, electrical, and chemical resistance parameters are verified through standardized international testing methodologies:
Physical & Thermal Properties
Material Thickness: average.
Unit Weight: average.
Tensile Strength: minimum under ASTM D1000 testing.
Elongation at Break: average under ASTM D1000 testing.
Dropping Point: thermal stability limit.

Chemical Resistance Documentation

Target Application Scenarios

• Flange Assemblies: Wraps intimately around bolted flange gaps and bolt heads, sealing against salt spray and tidal immersion at pipe junctions.
• Valve Bodies: Conforms to gate, globe, and ball valve geometries where rigid coating systems are impractical.
• Instrumentation and Small-Bore Piping: Suitable for hydraulic lines, pneumatic tubing, and process sensing lines in corrosive marine atmospheres.
• Dissimilar Metal Transition Joints: Seals interfaces between carbon steel and stainless steel where galvanic corrosion risk is elevated.

Application Protocol

1. Clean substrate to SP2 or SP3 using hand tools or power wire brushing.
2. Apply CNPetro-Paste primer to displace moisture and fill surface irregularities.
3. Spiral-wrap with 55% minimum overlap; use narrower overlap on tight-radius bends.
4. Hand-smooth all overlaps for intimate contact and air elimination.
5. For buried or submerged service, apply outer mechanical shielding.

Standard Tape Dimensions & Roll Configurations
The tape is supplied in a standard roll length of 10 meters. Widths and case packaging configurations are available as follows:
50 mm Width: — 24 Rolls per Case.
75 mm Width: — 18 Rolls per Case.
100 mm Width: — 12 Rolls per Case.
150 mm Width: — 8 Rolls per Case.
200 mm Width: — 6 Rolls per Case.
300 mm Width: — 4 Rolls per Case