UC 3018

eChem Ultra Clean
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Pratt & Whitney aerospace approved

PWA 36604 · industrial cleaning and degreasing

UC 3018

A non-silicated, multi-metal-safe aqueous cleaner proven for demanding aerospace spray, immersion and ultrasonic processes.

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Aerospace approvalMeets PWA 36604 criteria
Process fitSpray, immersion and ultrasonic
Material fitFerrous and non-ferrous alloys

Product overview

Clean parts—without silicate residue

Ultra Clean 3018 is a liquid, mildly alkaline cleaner for stainless steel, titanium, aluminum and other ferrous and non-ferrous metals. Its non-silicated formulation helps parts emerge clean and bright without the white powdery residue associated with traditional silicated products.

Wetting agents support soil penetration while the free-rinsing formula helps limit scale and sludge in spray washers, immersion systems, ultrasonic tanks and on heating elements.

Pratt & Whitney aerospace approval

Meets PWA 36604 criteria

Ultra Clean 3018 meets PWA 36604 criteria and was evaluated so that residual process material would not be detrimental to the following alloys when exposed to elevated temperature. Create a PMC when required by the applicable process specification.

Evaluated alloy coverage

  • Steel (AMS 6359)
  • Stainless steel (AMS 5508)
  • Nickel alloys (AMS 5536 / AMS 5544)
  • Powder-metallurgy nickel (PWA 1115)
  • Cobalt alloys (AMS 5608)
  • Titanium (AMS 4911)

PWA approval test condition

TemperatureImmersion time (2×)Make-up concentration
180°F20 minutes10%
PWA 36603 status: The current eChem technical reference states that Ultra Clean 3018 will be added at the next revision.

Additional benefits

Built for demanding production soils

Multi-metal safeCleans aluminum, steel, stainless steel, titanium and other alloys in a single process family.
Oil rejectingHelps floating oils separate for easier removal and longer usable bath life.
Heavy-soil performanceRemoves chlorinated oils, buffing compounds and difficult production residues.
Process versatileSuitable for spray washers, immersion/agitation systems, ultrasonic tanks and manual stations.
Free rinsingHelps reduce residue, scale and hard deposits in the washer and on heating elements.
Production-minded chemistryBiodegradable, nonflammable and formulated without silicates.

Directions for use

Establish the operating window

UC 3018 can be used from approximately 125°F to 180°F. A 3–5% by-volume range is a practical starting point for many soils, with concentrations up to 10% used for especially difficult cleaning requirements.

Validate concentration, temperature, dwell time, mechanical action, rinsing and bath-maintenance practices on representative parts before production release.

Safety: Use suitable eye, face and hand protection and follow the current SDS. Rinse exposed skin with water and flush eyes thoroughly if contact occurs.

Typical properties

Product reference

ColorLight straw
FragrancePleasant, mild aromatic
SurfactantsNonionic and anionic
Silicates0.0%
pH9.6–10.0
Flash pointNone
Active ingredients24.0%
Specific gravity1.050
Hard-water compatibilityExcellent
Grease cutting / penetrationSuperior
Application note: Confirm the current TDS, SDS and applicable Pratt & Whitney process documents. Final chemistry selection and operating parameters should be validated on representative parts, soils and downstream requirements.

Build the right aerospace cleaning process

Share your alloys, soils, throughput, equipment and governing specifications. We’ll help establish the chemistry and operating window.

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