Aerospace Vapor Degreasing-Clean Faster. Perform Better. Gain a Competitive Edge.

Author: Elizabeth Norwood, MicroCare Senior Chemist
In aerospace manufacturing, precision cleaning is not optional. It is mission-critical. From propulsion systems and hydraulic components to landing gear assemblies and structural fasteners, aerospace parts must meet strict standards for performance, traceability, and cleanliness.

When tolerances are tight and production schedules tighter, manufacturers need a cleaning process that delivers speed, repeatability, and compliance without compromising quality.

That’s why vapor degreasing using Tergo™ Vapor Degreasing Fluids and MicroCare Engineered Fluids has become a trusted precision cleaning solution across the aerospace supply chain.

Engineered for high-performance manufacturing environments, vapor degreasing provides validated, closed-loop solvent cleaning that improves throughput while supporting AS9100, NADCAP, and OEM compliance requirements.

What Is Vapor Degreasing in Aerospace Manufacturing?

Vapor degreasing is a precision solvent cleaning process designed to remove oils, greases, hydraulic fluids, machining residues, and particulates from complex aerospace components.

The process operates in a sealed, closed-loop system and typically includes:
 
  • Boil Sump: Heated solvent dissolves contaminants through immersion cleaning.
  • Rinse Sump: Clean distilled solvent removes remaining residues.
  • Vapor Zone: Condensing solvent vapor delivers a final ultra-pure rinse while drying parts completely.
Advanced cleaning fluids such as Tergo™ aerospace-grade vapor degreasing fluids are formulated for high solvency, material compatibility, and low environmental impact. The result? Components emerge clean, dry, cool to the touch, and ready for bonding, coating, inspection, or assembly, without additional drying time.

Why Do Aerospace Manufacturers Choose Vapor Degreasing?

Superior Cleaning of Complex Aerospace Geometries

Aircraft components often feature:
 
  • Blind holes
  • Micro-channels
  • Tight tolerances
  • Internal cavities
Traditional aqueous cleaning may struggle to penetrate these geometries. Vapor degreasing fluids, including MicroCare Engineered Fluids, penetrate intricate features easily, dissolving and removing contamination with precision.

Repeatable, Easier-to Validate Cleaning Processes

Aerospace production demands documentation, validation, and traceability. Vapor degreasing is:
 
  • Automated
  • Parameter-controlled
  • Highly repeatable
Using easier-to-validate cleaning chemistries such as Tergo™ Fluids, manufacturers can support AS9100 quality systems and NADCAP process documentation while maintaining consistent cleaning performance across batches.

Faster Cleaning Cycles and Higher Throughput

Compared to aqueous systems requiring multiple wash and drying stages, vapor degreasing:
 
  • Cleans and dries in one cycle
  • Eliminates long oven drying times
  • Reduces part handling
This translates into shorter cycle times, reduced bottlenecks, and improved production efficiency.

Lower Downtime and Extended Fluid Life

Modern vapor degreasers incorporate:
 
  • Continuous solvent distillation
  • In-process filtration
  • Closed-loop recovery systems
MicroCare Tergo™  fluids are engineered for long service life and stability, reducing maintenance interruptions and minimizing solvent consumption.

How Does Vapor Degreasing Reduce Aerospace Manufacturing Costs?

While aerospace quality standards are uncompromising, cost efficiency remains critical.  
Vapor Degreaser cleaning helps reduce rework and scrap while proper surface preparation improves 
adhesive bond strength, coating adhesion and seal integrity.

By eliminating contamination early, vapor degreasing reduces rework, warranty claims, and inspection failures.

Minimizes Hazardous Waste

Closed-loop solvent recycling purifies and reuses cleaning fluid, reducing:
 
  • Hazardous waste disposal
  • Fresh solvent consumption
  • Environmental reporting burdens
The MicroCare advanced cleaning fluids support lean, cost-efficient operations without sacrificing compliance.

Supports Lean Manufacturing

With fewer process steps, reduced labor handling, and faster drying, vapor degreasing aligns with lean manufacturing principles and just-in-time aerospace production models.

Why Is Surface Preparation Critical in Aerospace?

In aerospace, cleaning is about more than cosmetic appearance. It directly affects performance and safety.

Poor cleaning can compromise:
 
  • Structural bonding
  • Fuel system sealing
  • Corrosion resistance
  • Coating durability
MicroCare Tergo™  vapor degreasing fluids leave no water spots, ionic residues, or particulates behind, ensuring optimal surface energy for painting, plating, welding, sealing, and adhesive bonding.

Because parts exit the system dry and residue-free, they are immediately ready for downstream processes, saving valuable production time.

How Do You Choose the Right Aerospace Cleaning Fluid?

Selecting the proper vapor degreasing fluid requires evaluation of three critical factors:

1. Contaminant and Material Compatibility

Aerospace components may include:
 
  • Titanium
  • Aluminum alloys
  • Stainless steel
  • Composite substrates
MicroCare aerospace cleaning fluids are engineered for compatibility with sensitive metals and advanced materials while effectively removing hydraulic fluids, machining oils, corrosion inhibitors, and greases.

2. Regulatory and OEM Compliance

Aerospace cleaning solvents must align with:
 
  • REACH regulations
  • RoHS directives
  • U.S. EPA SNAP program
  • OEM and Tier 1 specifications
MicroCare vapor degreasing fluids are formulated to meet evolving environmental and regulatory requirements, reducing the risk of costly process requalification.

3. Environmental and Safety Performance

Modern aerospace manufacturers prioritize sustainability and EHS performance.

MicroCare cleaning fluids offer:
 
  • Low Global Warming Potential (GWP) options
  • Zero Ozone Depletion Potential (ODP)
  • Non-flammable formulations
  • Favorable occupational exposure limits
These attributes support corporate sustainability goals while maintaining high cleaning performance.

Proven Aerospace Applications for Vapor Degreasing

Vapor degreasing is widely used across aerospace manufacturing for:
 
  • Bearings and fasteners
  • Fuel system components
  • Hydraulic assemblies
  • Landing gear parts
  • Precision-machined housings
  • Pre-bonding and pre-coating preparation
By integrating validated vapor degreasing systems with MicroCare Tergo™ aerospace cleaning fluids, manufacturers achieve consistent, documented cleaning performance across critical applications.

Conclusion: A Strategic Cleaning Advantage for Aerospace

Vapor degreasing is more than a cleaning method. It is a competitive manufacturing strategy.

As aerospace manufacturers face tighter production schedules, stricter quality standards, and increased environmental expectations, vapor degreasing provides:
 
  • Faster cycle times
  • Repeatable, easy-to-validate cleaning
  • Lower operating costs
  • Improved compliance
  • Superior surface preparation
With advanced cleaning chemistries such as MicroCare Tergo™ Vapor Degreasing Fluids  aerospace manufacturers can clean faster, perform better, and maintain a critical edge in a demanding industry.

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Author Information

Elizabeth Norwood is a Senior Chemist at MicroCare LLC, a global provider of precision cleaning solutions including Tergo™ Vapor Degreasing Fluids and Vertrel® Specialty Fluids. With more than 25 years of industry experience, she holds a BS in Chemistry from the University of St. Joseph and leads advanced cleaning technology development initiatives.