RD-6 / RD-6 HT

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Non-Shielding Coating RD-6 Coating System

Spiral wound gasket for ASME flange sealing in oil and gas, petrochemical, refinery, and pipeline applications. Designed for high pressure and high temperature service where reliable flange sealing is required.

Proven Across IndustriesRD-6 Coating System

Non-Shielding Cathodic Protection Compatibility

RD-6® is engineered with a geotextile-backed non-shielding design that allows cathodic protection currents to reach the pipe surface, even in disbonded areas, supporting long-term corrosion mitigation and pipeline integrity.

Fast No-Cure Field Application

Cold-applied coating system designed for rapid installation and immediate backfill, reducing downtime during pipeline rehabilitation and new construction projects.

High Adhesion & Disbondment Resistance

Delivers adhesion strength up to 35 N/10mm on primed steel surfaces while resisting coating disbondment caused by soil stress, moisture ingress, and field installation conditions.

Engineered for Harsh Underground Conditions

Provides excellent resistance to soil stress, mechanical impact, and environmental exposure with a 50 mil (1.27 mm) factory-controlled coating thickness and impact resistance up to 23 in./lb.

Certified Industry Compliance

Manufactured to comply with major international pipeline coating standards including NACE SP0109-2023, ANSI/AWWA C233-24, CSA Z245.30:22, and ISO 21809-3 for buried and submerged pipeline systems.

Field-Proven Global Performance

Successfully utilized across thousands of pipeline installations worldwide for girth weld protection, rehabilitation, and buried or submerged pipeline corrosion control applications.
View Case Studies (Link here)

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What Makes RD-6 a Proven Choice for Corrosion Protection?

Polyguard RD-6 is a non-shielding, anti-corrosion coating system engineered to safeguard buried and submerged pipelines from corrosion. Its polymer-modified coating layer, bonded to a tightly woven polypropylene geotextile fabric, provides excellent durability, high tensile strength, and low elongation — ensuring long-term protection without compromising cathodic protection efficiency.

How Does the RD-6 System Work?

The RD-6 Coating System combines three layers of defense:

  • Liquid Adhesive Primer for superior surface bonding.

  • Geotextile-Backed RD-6 Coating for corrosion resistance and flexibility.

  • SP-6 Outerwrap & UV Overcoat for added protection and UV stability above ground.

This system is ideal for buried and submerged pipelines, girth welds, and rehabilitation projects, with compatibility for operations up to 145°F (63°C). For higher temperatures, RD-6 HT is recommended.

Why Choose RD-6?

  • Non-shielding design — prevents corrosion under disbonded coating.

  • Ease of installation — supplied in rolls and applied with a Polyguard-approved machine.

  • Proven field performance — widely trusted for long-term corrosion control.

Choose PetroMarys for certified Polyguard RD-6 solutions, ensuring reliable protection, extended service life, and cost-efficient performance for your critical pipeline assets.

PetroMarys ProductsRD-6 HTProtection

High-performance gaskets designed to meet the demanding needs of the oil & gas, marine, and industrial sectors.

PetroMarys supplies Polyguard RD-6 HT®, a non-shielding, anti-corrosion coating for buried, submerged, and new pipeline applications.
Reinforced with polypropylene geotextile fabric, it offers high strength, low elongation, and long-term corrosion protection.
For above-ground use, apply RD-6 UVO for added UV resistance.

Features & Benefits:

  • Non-shielding design — allows cathodic protection currents to reach the pipe surface.

  • High-temperature service — suitable for pipelines up to 190°F (88°C).

  • Superior cathodic disbondment resistance, even with minimal surface prep.

  • Strong geotextile backing — resists soil stress and maintains coating integrity.

  • Fast and easy to apply — backfill immediately after coating.

  • Visco-elastic flexibility — accommodates thermal expansion and contraction.

  • Excellent adhesion — woven fabric promotes uniform bonding at overlaps.

  • Water vapor resistant — ensures consistent protection in challenging conditions.

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UV protection

Custom-cut sheets available in various materials for on-site or workshop fabrication.
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anti-corrosion coating

High-strength gaskets for extreme pressure and temperature. Ideal for critical oil & gas and industrial systems.
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non-shielding system

Flexible, corrosion-resistant gaskets for general sealing in marine and industrial applications.

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PetroMarys is always interested in new, challenging and exciting projects

So, why not contact us and send us your project requirements, and we’ll do the rest!

Proven Across IndustriesSpiral Wound Gasket

Non-Shielding Cathodic Protection Compatibility

RD-6® is engineered with a geotextile-backed non-shielding design that allows cathodic protection currents to reach the pipe surface, even in disbonded areas, supporting long-term corrosion mitigation and pipeline integrity.

Fast No-Cure Field Application

Cold-applied coating system designed for rapid installation and immediate backfill, reducing downtime during pipeline rehabilitation and new construction projects.

High Adhesion & Disbondment Resistance

Delivers adhesion strength up to 35 N/10mm on primed steel surfaces while resisting coating disbondment caused by soil stress, moisture ingress, and field installation conditions.

Engineered for Harsh Underground Conditions

Provides excellent resistance to soil stress, mechanical impact, and environmental exposure with a 50 mil (1.27 mm) factory-controlled coating thickness and impact resistance up to 23 in./lb.

Certified Industry Compliance

Manufactured to comply with major international pipeline coating standards including NACE SP0109-2023, ANSI/AWWA C233-24, CSA Z245.30:22, and ISO 21809-3 for buried and submerged pipeline systems.

Field-Proven Global Performance

Field-Proven Global Performance

Successfully utilized across thousands of pipeline installations worldwide for girth weld protection, rehabilitation, and buried or submerged pipeline corrosion control applications.


View Case Studies

“Please do not leave the trash room door or entrance door open. Leaving it open causes trash to spill out and creates hygiene issues. Let’s keep our space clean and safe. Thank you!”
Pics (2)
“Please do not leave the trash room door or entrance door open. Leaving it open causes trash to spill out and creates hygiene issues. Let’s keep our space clean and safe. Thank you!” (14)