When you can't run a torch and can't run a coating plant
In some situations heat-shrink sleeves and powder coatings just aren't an option — confined spaces with no ventilation for torches, sites where electrical certification limits hot work, retrofit jobs on aging pipework that can't be moved to a plant, emergency repairs where speed matters more than premium performance. Cold-applied pipeline tapes were designed for exactly these situations.
Tape systems we supply
PVC anti-corrosion tape
The general-purpose workhorse — solvent-applied PVC carrier with butyl-mastic adhesive. Fast to install, low-cost, suitable for buried and atmospheric service up to 50 °C. Available in widths from 50 mm to 300 mm and thicknesses from 0.4 mm to 1.0 mm.
Polyethylene anti-corrosion tape
Higher-performance alternative — polyethylene backing with butyl or rubberized-mastic adhesive. Better mechanical strength, UV resistance and service temperature (up to 70 °C). Used for above-ground exposed pipework and where higher abrasion resistance matters.
Inner / outer two-tape system
For demanding service we supply matched-pair systems — soft inner tape for corrosion protection (visco-elastic or rubber-mastic) + harder outer tape for mechanical protection (PVC or PE). The standard for buried and rocky-terrain installations where blasting + HSS isn't viable.
Petrolatum-based tape (for tidal / immersion)
Petrolatum-soaked synthetic carrier tape designed for splash-zone and immersion service. Self-healing, resists biofouling, performs in saline environments.
Where we use these
- Buried small-diameter pipework — service connections, utility tie-ins
- Above-ground retrofit jobs — aging coatings, no plant access
- Confined spaces — basements, vaults, valve pits where hot work is restricted
- Emergency or temporary repairs — pinhole patches, exposed-pipe protection ahead of permanent fix
- Couplings, fittings, valve bodies — irregular geometry where wrap-and-press works
- Concrete embedment / casing-to-carrier-pipe — protecting pipe inside a casing
- Atmospheric anchor flanges and bolted joints
Build characteristics (typical PVC + PE tapes)
| Property | PVC tape | PE tape |
|---|---|---|
| Thickness | 0.4-1.0 mm | 0.5-1.5 mm |
| Service temperature | -10 °C to +50 °C | -40 °C to +70 °C |
| Tensile strength | 12-18 N/mm | 18-30 N/mm |
| Adhesion to steel | ≥ 5 N/cm | ≥ 8 N/cm |
| Dielectric strength | 30 kV/mm | 35 kV/mm |
| Available widths | 50, 100, 150, 200, 300 mm | 50, 100, 150, 200, 300 mm |
| Roll length | 10-30 m | 10-30 m |
Standards
- AWWA C214 — tape coating systems for the exterior of steel water pipelines
- DIN 30672 — corrosion protection of buried pipelines (tape coatings)
- EN 12068 — Class B (Bituminous) tape systems
- ASTM D1000 — pressure-sensitive adhesive tape testing
- NACE SP0109 — cold-applied tape coatings
Application principles
- Power-tool clean to St 2-3 (or Sa 2½ for high-spec service)
- Apply primer where specified (usually a thin butyl-mastic primer)
- Wrap inner tape with 50% overlap, controlled tension, no wrinkles or air pockets
- Wrap outer mechanical tape with 50% overlap in the opposite spiral direction
- Press down at end-laps with a hand-roller or power roller for even adhesion
Common questions
How does tape compare to HSS on cost? Tape is roughly 30-50% lower per metre on materials but takes longer to install per joint. For large-volume mainline work, HSS wins on labour. For small jobs or retrofits, tape often wins overall.
Does tape need a topcoat for UV exposure? PVC tapes are reasonably UV-stable; PE tapes more so. For tropical sun exposure (Gulf surface installations), we recommend an over-applied UV-protective wrap or a PU topcoat.
Service life expectations? PVC tape: 15-20 years buried, 7-10 years atmospheric. PE tape: 20-30 years buried, 15-20 years atmospheric. Petrolatum tape: 30+ years immersed.
