Skip to main content
Amber fluid

OCEANIC HW 443 Subsea Production Control Fluid

OCEANIC HW 443 is a high performance, high temperature water-based hydraulic fluid for use in open and closed loop subsea production control systems and in Blow-Out Preventer (BOP) control systems.

MacDermid maintains worldwide environmental approvals and can offer OCEANIC & PELAGIC subsea production control fluids suitable for use in every exploration & production region around the world.



Key Benefits


OCEANIC HW 443 offers excellent technical and environmental performance and contains a fluorescent dye that aids in leak detection. Stable up to 145°C / 293°F, this fluid is suitable for some operations at 145°C and specified for high temperature wells with a downhole temperature ≤135°C / 275°F including a comfortable safety margin. OCEANIC HW 443 offers high compatibility with other materials typically used in subsea production control equipment.  


  • Quality tested and certified to industry standards 

Designed for use in most subsea production control systems and quality tested in accordance with ISO 13628-6 Annex C

  • Global environmental compliance

Meets stringent global environmental discharge regulations

  • Extended operational fluid life and outstanding stability with high seawater ingress

Resistant to microbial infection and no solids formation in hydraulic lines with 50% seawater contamination

  • Excellent corrosion protection and lubrication properties

Ideal for established projects with long design life (≥25 years) and recommended for long-term equipment storage

Can't find what you're looking for?

We’re here to help! We offer innovations and custom solutions all around the world, with offices in North America, South America, Europe, and the Asia Pacific region.