Pipeline Coatings

Advanced Coating Protection for Industrial Pipelines

Pipelines are critical and costly infrastructure assets to maintain. Once they're buried, inspection, repair, and replacement require significant time, labor, and budget, making long-term protection essential from the very beginning. Selecting a high-performance coating system isn't just about meeting today's specifications — it's about preserving asset integrity for decades to come.

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Corrosion Never Stops. Neither Should Your Protection.

Whether transporting natural gas, drinking water, or municipal wastewater, Tnemec provides the corrosion protection, abrasion resistance, and compatibility with cathodic protection needed to keep critical pipeline infrastructure operating for decades.

Experience Pipe Armor Firsthand- Request a Series 423 Demonstration Kit

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Pipe Armor Solutions

High-Performance Protection for Buried Pipeline Systems

Tnemec's Pipe Armor technologies are formulated to protect steel pipelines from rugged underground conditions. These advanced epoxy systems provide exceptional abrasion resistance, superior adhesion, and the flexibility needed to withstand installation stresses while delivering long-term corrosion protection.

Series 425 Pipe Armor ARO

Abrasion-resistant protection for the entire pipeline

Series 425 Pipe Armor ARO is a 100% solids epoxy overcoat designed to protect fusion-bonded epoxy (FBE)-coated steel pipelines during installation, including horizontal directional drilling (HDD) and other trenchless methods. Its rapid cure, high-build application, and exceptional flexibility help safeguard pipelines from abrasion, impact, and mechanical stress while maintaining long-term coating integrity.

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Uses + Applications

  • Steel pipelines
  • Buried pipelines
  • Oil and gas transmission pipelines
  • Abrasion-resistant overcoat for FBE systems

Key Benefits

  • Abrasion-resistant protection
  • Superior adhesion
  • Rapid cure and hardness development
  • Pipe movement flexibility
  • Resists cathodic disbondment
  • 100% solids epoxy formulation

Series 425 Pipe-Armor Comparison to other coating

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Series 423 Pipe Armor FJW

Advanced protection for field joints and welds

Series 423 Pipe Armor FJW is a high-performance, 100% solids epoxy engineered to protect field joints, welds, and repaired areas where corrosion protection is critical. Easy to apply and fast curing, it provides durable reinforcement for vulnerable connection points while remaining compatible with cathodic protection systems.

Series 423 Pipe Armor FJW Application

Uses + Applications

  • Field joint welds
  • Field repairs
  • Buried pipelines
  • Oil and gas transmission pipelines

Key Benefits

  • Easy application
  • Superior adhesion
  • Abrasion resistance
  • Rapid hardness development
  • Pipe movement flexibility
  • Resists cathodic disbondment

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Municipal Water & Wastewater Pipeline Solutions

Engineered Protection for Critical Water Infrastructure

Beyond transmission pipelines, Tnemec offers high-performance coating systems designed to protect potable water and wastewater infrastructure from corrosion, chemical exposure, abrasion and microbiologically influenced corrosion (MIC). Whether lining buried pipe, wastewater conveyance systems or potable water assets, these proven technologies help extend service life while minimizing maintenance demands.

Series 431 Perma-Shield PL

Designed specifically for buried wastewater infrastructure, Series 431 Perma-Shield PL is a 100% solids, abrasion-resistant lining that protects steel and ductile iron pipe and fittings exposed to corrosive soils, wastewater immersion and hydrogen sulfide (H₂S) environments. Its resin-rich, coal tar-free formulation provides outstanding chemical resistance, low gas permeation, and long-term protection against microbiologically influenced corrosion (MIC).

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Uses + Applications

  • Buried wastewater pipelines
  • Wastewater immersion service
  • H₂S fume environments
  • Steel and ductile iron pipe and fittings

Key Benefits

  • Abrasion-resistant
  • Low H₂S permeation
  • MIC protection
  • Chemical-resistant
  • Coal tar-free formulation

Series 431 Ductile


Series G435 Perma-Glaze

A thick-film, 100% solids lining developed for domestic wastewater immersion and fume environments. Series G435 Perma-Glaze is reinforced with microfibers; it provides enhanced film integrity while resisting H₂S permeation, MIC, and chemical attack.

Key Benefits

  • Abrasion-resistant
  • Microfiber reinforced
  • Low H₂S permeation
  • MIC protection
  • Chemical-resistant


Series N140 Pota-Pox Plus

A high-build epoxy coating engineered for potable water systems, Series N140 Pota-Pox Plus offers excellent edge protection and appleication flexibility across a wide range of temperatures for steel and concrete assets.

Key Benefits

  • Potable water certified
  • High-build edge protection
  • Low-temperature application capability
  • Interior and exterior applications



Series 21 Epoxoline

Series 21 Large Kit

Series 21 Epoxoline is a high-solids, immersion-grade epoxy that delivers exceptional film build and long-term corrosion protection for steel and concrete structures in potable water service and pipelines.

Key Benefits

  • High-build protection
  • Long-term corrosion resistance
  • Potable water approved
  • Steel and concrete applications



Series 22 Epoxoline

Series 22

Series 22 Epoxoline is an advanced 100% solids epoxy providing superior abrasion resistance and faster curing for immersion service in both potable water and wastewater environments.

Key Benefits

  • 100% solids epoxy
  • Fast cure response
  • Abrasion-resistant
  • Potable water and wastewater immersion



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