Roemex launches RX-5255 Pre-Dyed Hydrotest Cocktail

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Roemex is pleased to announce the launch of RX-5255, a 4 in 1 liquid hydrotest cocktail comprising corrosion inhibitor, biocide, oxygen scavenger and leak detection dye. It is designed to provide effective corrosion mitigation and leak detection whilst maintaining the highest environmental credentials, OCNS Gold, no substitution warning.

In September 2017 Roemex launched the 3 in 1 liquid hydrotest cocktail RX-5254 after an extensive R&D programme. One of the key development criteria was the compatibility with the existing, field proven RX-9022 leak detection dye. Following the results of performance and compatibility Roemex has now launched RX-5255 which comprises all of the features of the RX-5254 product with the added benefit of including the environmentally friendly leak detection dye.

Hydrotest cocktails are utilised to provide corrosion mitigation for a range of pre-commissioning, new field development, workovers and mothballing projects.


  • Reduction (simplified) pumping spread with cost and deck space benefits.
  • Significantly less operational risk at the point of dosing – one product and one dose rate only to be controlled during deployment.
  • Reduction in manpower associated with pumping
  • Simplified ordering process – purchase order, shipping manifest for only one product.
  • Simplified permit status – no separate management of leak detection dye on the chemical permit.

RX-5255 Technical features and benefits

  • Outstanding environmental profile; CEFAS Gold, No Substitution Warning. NEMS Yellow Y2.
  • Dose optimised to 550ppm providing a minimum of 2 years protection time.
  • Designed for compatibility with seawater, potable water and MEG
  • Neat compatibility of all 4 components gives the ability to simultaneously deploy the cocktail.

Please contact us at or call us on +44 (0)1224 783444 for full product information and performance stability and compatibility.