Reliance Specialty Products
Vapor Degreasing Experts™
EnTron-Aero™ degreasing solvent

Boeing BAC5408 Approved Precision Solvent for Vapor Degreasing

EnTron-Aero™ is a powerful, advanced nPB based solvent which has been approved under Boeing Specification BAC5408 for use as an alternative for chlorinated solvents: TCE and PERC. EnTron-Aero™ is specially formulated for metal, plastic and elastomer compatibility in aerospace cleaning and can be used to clean titanium. Contact us today for more information or a free test sample or if you would like to try our AeroTron™-AV Next Generation aerospace vapor degreasing solvent.

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Advantages of EnTron-Aero™:

  • Approved for use on titanium
  • Approved under Boeing Specification BAC5408 for vapor degreasing
  • Non-Flammable (has no flash point)
  • Non-Chlorinated (replaces TCE and PERC)
  • US-EPA SNAP approved (Significant New Alternative Policy)
  • Approved to ASTM-D-6368
  • Recyclable

Effortless Precision Vapor Degreasing and Ultrasonic Cleaning of Complex Parts

EnTron-Aero™'s low surface tension, high evaporation rate and powerful solvency make it ideal for removing contaminants from parts with blind holes and complex geometries or for batch cleaning of multiple small parts in vapor degreasing and ultrasonic cleaning applications.

Ideal Drop-In Replacement for Chlorinated Solvents: Trichloroethylene and Perchloroethylene

EnTron-Aero™ has been approved under BAC5408 for use as a drop-in replacement for TCE and PERC in aerospace vapor degreasing and ultrasonic cleaning. The physical properties (no flash point, azeotropic, 160°F boiling point, solvency power, stability and easy distillation) and make EnTron-Aero™ ideal for replacing chlorinated solvents.

EnTron-Aero™ is Cost-Effective

We recognize that the total cost of cleaning is more than just the cost of the solvent. That is why with EnTron-Aero™ not only will you find a competitively priced product, but a full compliment of support personnel, and performance characteristics that enhance the cost-effectiveness of choosing EnTron-Aero™:

Specially Formulated for Aerospace Cleaning Applications

EnTron-Aero™ is a technologically advanced nPB solvent formulation which produces consistent, stable results in vapor cleaning and degreasing applications, which is why it has been approved for use under Boeing Aircraft Company BAC5408. EnTron-Aero™ has passed extensive test validation by the premier aerospace manufacturer to ensure EnTron-Aero™ produces the level of cleaning required for aerospace parts.

Performance Properties ENTRON-AERO™ TCE PERC
Boiling Point 160° F
(71° C)
188° F
(87° C)
250° F
(121° C)
Flash Point None None None
KB Value 130 129 90
Specific Gravity 1.31 1.46 1.62
Evaporation Rate 4.7 3.0 1.5
Vapor Pressure 134 60 18
Vapor Density 4.3 4.53 5.76
Specific Heat 0.26 0.23 0.21
Water Solubility
@25°C g/100ml
0.24 0.11 0.015
Surface Tension
(dynes / cm)
26.1 29.5 31.8
Dialectric Strength 27,000 varies varies
Viscosity 0.5 0.49 0.8
EnTron-Aero™ vapor degreasing solvent performance

Pictured above is a performance test part cleaning of an aerospace turbine cleaned in the Reliance ULTRA™ Vapor Degreaser. The aerospace turbine is being cleaned in our EnTron-Aero™ BAC5408 Boeing approved vapor degreasing solvent.

Approved for Use on Titanium

EnTron-Aero™ is approved for use on titanium and is formulated to be compatible with a broad range of metals.

Superior Cleaning Performance

EnTron-Aero™ is highly effective in cleaning organic contaminants such as oils, greases, lubricants, coolants, drawing fluids, adhesives, waxes, fluxes and flux residues.

Expert Technical Support With Every Drum

Best of all, with EnTron-Aero™, the Reliance Technical Support Engineering Team is behind you. We are confident that our expertise in solvent chemistries, vapor degreasing equipment and regulatory compliance will allow us to provide the correct solution to solve any cleanliness, productivity or regulatory issues that you may have. Our technical personnel would be happy to assist you in your switch to EnTron-Aero™. We provide turn-key, value-added technical support to help in your transition.

EnTron-Aero™ Solvent
Aerospace Metals Compatibility Testing
(Tested to ARP 1755B)
AMS 4037 Aluminum Passes
AMS 4375 Magnesium Passes
AMS 4434 Magnesium Passes
AMS 4442 Magnesium Passes
AMS 4507 Copper Passes
AMS 4544 Nickel Passes
AMS 4640 Al Bronze Passes
AMS 4911 Titanium Passes
AMS 5040 Steel Passes
AMS 5382 Cobalt Passes
AMS 5504 Steel Passes
AMS 5508 Steel Passes
AMS 5524 Steel Passes
AMS 5525 Steel Passes
AMS 5536 Nickel Passes
AMS 5537 Cobalt Passes
AMS 5596 Nickel Passes
AMS 5661 Nickel Passes
AMS 6431 Steel Passes

Our Comprehensive Transition Success Program Includes Two Key Phases:

Phase A - Validation Performance Testing:

  • Free test sample of EnTron-Aero™
  • Free performance testing of sample parts
  • Full range of vapor degreasing & ultrasonic capability in the Reliance Vapor Degreaser Test Cleaning Labs for large and small parts

Phase B - Switch-Over & Continuing Production Services:

  • Vapor degreaser consultation and technical support
  • Vapor degreaser engineering, modification & repair services
  • Analytical lab with solvent analysis services
  • EnTron-Aero™ bath quality monitoring kit & support
  • EnTron-Aero™ spent solvent disposal program
Regulatory Profile
  EnTron-Aero TCE
NESHAP Reporting Not Required Required
RCRA NON-Hazardous Waste Hazardous Waste
DOT NOT Regulated Yes, Regulated
Title V Permit NOT Required Required
CERCLA Regulated over
20,000 lbs. 24 hrs.
Regulated over
110 lbs. 24 hrs.
Prop 65, CA Yes Yes
with US-EPA
SNAP Approved
Yes Yes