Solve Your Aviation Cleaning Challenges with Techspray

Techspray's Aviation MRO line breaks new ground in safety and performance for precision solvent cleaning, aircraft component degreasing, contact cleaning, and avionics repair.

Our R&D team works one-on-one with aircraft manufacturers and major aviation maintenance, overhaul, and repair facilities (MRO) to identify the root cause of their challenges and develop safer products that meet performance and compliance requirements.

PWR-4 Aviation Degreaser, G3 Blue Shower Maintenance Cleaner, and G3 Contact Cleaner are all approved under Boeing spec D6-17487 rev. P for paint softening, hydrogen embrittlement, stress crazing, and other aviation specific requirements. Aviation Degreaser II qualifies under NESHAP VOC requirements 63.741-753.

Looking for 3M Novec Replacements, check out our Novec replacements page.


Low Toxicity

Safer than most aerosol degreasers Free of n-propyl bromide



Meets all regulatory and environmental specifications



Efficient, industrial strength products engineered for specific applications



Usable across a variety of devices and electronics

	E-Line Parts Sprayed Clean E-LINE Contact Cleaner
Powerful and economical electrical contact cleaner
2359-13S Aviation 2000 Degreaser
High pressure cleaner to quickly flush out grease & other soils
Picture of Aviation Clean & Prep Wipes Aviation Clean & Prep Wipes
Aerospace approved chemistries & wiping material in easy-to-use dispensing tubs
2892-G Citrus HF Degreaser
High flashpoint citrus-based degreaser for heavy greases
2870-19S	Precision-V Aviation Maintenance Cleaner
Nonflammable & eco-friendly aviation degreaser for cleaning sensitive surfaces
Picture of PWR-4 Aviation Degreaser PWR-4 Aviation Degreaser
Nonflammable & powerful spray for removing hydraulic and lubricating fluids
Picture of Aviation Degreaser II Aviation Degreaser II
Low-VOC cleaner for removing hydraulic and lubricating fluids
G3 Blue Shower Maintenance Cleaner	G3 Blue Shower Maintenance Cleaner
Nonflammable & powerful degreaser
G3 Spray Clean	G3 Contact Cleaner
Nonflammable & powerful contact cleaner
Picture of Liquid Oxygen Validation Solvent Liquid Oxygen Validation Solvent
Proprietary azeotropic blend designed for cleaning & validation of NASA propulsion oxygen systems hardware
Novec replacement for 37DE, 72DA, 72DE and 73DE PWR-4 Solvent 3410
Heavy-duty, cost effective degreaser
PWR-4 Solvent 3910 PWR-4 Solvent 3910
100% US Made, Heavy-duty, Low GWP degreaser, PFAS FREE
EmaroSolv Citrus EmaroSolv Citrus
Biodegradable solvent formulated for aircraft interior and exterior cleaning
EmaroSolv Citrus EmaroSolv MR
MR is a safer alternative to MEK (Methyl Ethyl Ketone) and MPK (methyl propyl ketone) for surface cleaning and preparation.
Precision-V 3710DL Solvent Novec 7100DL Replacement - 1 gal
Replacement for 3M Novec 7100DL


How can you reduce chemical exposure?

Every organization using hazardous chemicals within their facility has the responsibility to equip their facility and personnel to maintain exposure levels below the TLV. Personal monitoring badges can be used to measure exposure of a specific material. Then, depending on the threshold limit and the application, exposure can be controlled with PPE like masks, face shields, respirators, and even coveralls. If they don’t reduce exposure below the recommended limit, you will need to consider a special ventilation hood or even containment booth. As you can see, as the exposure limit gets down to a certain level, the equipment required to safely use the solvent can get impractical. At that point, your best option is to consider a safer alternative.

How do you know the safe exposure limit of a degreaser, contact cleaner, or flux remover?
The personal hazard associated with a solvent is often defined using Threshold Limit Value (TLV), which is the recommended average exposure in an 8-hour day, 40 hour work week. The lower the TLV of a particular substance, the less a worker can be exposed to without harmful effects. TLV is stated on the SDS of chemical products, in additional to recommended personal protection equipment (or PPE). The threshold limit value of a solvent is generally set by the American Conference of Governmental Industrial Hygienists (ACGIH). The unit of measure is Parts Per Million (PPM).
What is the difference between degreaser and sanitizer?

A degreaser is intended to clean a surface, so remove contamination. A degreaser is designed specifically to remove oils, greases, and lubricants. Sanitizers are intended to kill various pathogenic agents, like bacteria and viruses. There are materials that can do both, like 70% isopropyl alcohol (per CDC guidelines for hard surface disinfecting), but don’t assume all degreasers will kill pathogens.

What chemicals are in degreasers?

The ingredients of a degreaser can vary wildly depending on the product. Generally speaking, they fall into 2 camps: 1) solvent cleaners – this includes alcohols (like isopropyl alcohol, or ethyl alcohol), hydrocarbons (like heptane and mineral spirits), ketones (like acetone and xylene), and more exotic compounds and blends. 2) water-based cleaners – these include ingredients dissolved or blended with water. Which is best for your application depends on the type of soil and various requirements like performance, evaporation rate, toxicity limits, and environmental regulations.

Is Windex a degreaser?

Windex (or other similar glass cleaners) could be considered a very light-duty degreaser. Glass cleaners can remove very light oils, like fingerprints, but will fall very short with heavier oils, greases and lubricants. Techspray offers a foaming glass cleaner (part #1625-18S) and water-based Eco-Shine (1505-QT) for light cleaning, and products like G3 Maintenance Cleaner (1630-16S), PWR-4 Maintenance Cleaner (3400-20S), and E-LINE Maintenance Cleaner (1620-10S) for more heavy-duty oils, greases and lubricants.

Are there degreasers that are more toxic than others?

N-Propyl Bromide (nPB), Trichloroethylene (TCE) and Perchloroethylene (Perc) are highly toxic chemicals commonly used in degreasers to provide cleaning performance in a nonflammable formula. There are documented court cases where workers suffered major health effects when exposed to high levels of these chemicals. Workers reported headaches, dizziness, and even loss of full body control. There are also possible links to reproductive problems and cancer. All of this has caused maintenance facilities to reconsider their solvent choices, especially with manual cleaning when exposure tends to be higher.

Should I worry about plastic packaging and components and rubber seals when degreasing?
Rigid plastics like ABS, polycarbonate (trade name Lexan), and acrylic materials like Plexiglass can be very sensitive to harsh solvents like toluene, xylene, and acetone. Alcohol and hydrocarbon based solvents tend to be better on sensitive plastics. Rubber, silicone or other seals or gaskets made of elastomeric (soft) materials can have a tendency to swell or shrink with exposure to harsh solvents. After the solvent flashes off, they may spring back to their original dimensions, or be permanently changed, impacting the effectiveness of the seal. Polyester or Teflon based gasketing materials are less prone to this type of damage from harsh solvents.
What is a degreaser?

A degreaser is a cleaner designed to remove grease, oils, cutting fluids, corrosion inhibitors, handling soils, finger prints, and other contamination common in assembly, stamping, other types of metal fabrication, refineries, motor repair, airplane hangars, and many other applications. Degreasers go by a number of different names, including precision cleaner, maintenance cleaner, and specific for automotive repair, carb cleaner, brake cleaner. The objective for a degreaser is to remove the offending soil quickly, avoiding as much wiping and scrubbing as possible. Degreasing solvents are commonly packaged as an aerosol for convenience. Aerosols have the added advantage of providing a forceful spray that creates agitation and to penetrate all the crevices of the part.


WEBINAR: 3M Novec Replacements -- Latest News & Best Available Options
   Contents: About Techspray Full Service Product Development & Qualification Lab 3M is Discontinuing Novec Solvents Update on 3M & Force Majeure Securing Your Supply Chain What Are Novec Solvents? What Are PFAS? Options for Novec Users Direct Drop-in Replac...
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EPA Tightens Restrictions on nPB, TCE, Perc & Methylene Chloride Due to Health Risks from Toxicity
by Dr. Saroj Yadav, Marketing Director and Organic Chemist n-Propyl Bromide (nPB), Trichloroethylene (TCE), Perchloroethylene (Perc), and Methylene Chloride are four examples of harmful chemicals that are commonly used in aerosol and bulk cleaners in industrial applications. These chemi...
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Paradox of Hazardous Air Pollutants (HAPs) Regulations in the USA
Hazardous chemicals are present in many products and materials that we use in our daily lives, from cookware or cleaning liquids to electronic devices; they are pretty much everywhere around us. While these chemicals may make our lives easier, they can also pose a significant risk to human health an...
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3M Novec Replacements: Infographic Guide
On December 20, 2022, 3M announced their plans to phase-out their Novec PFAS-based product lines by the end of 2025. At Techspray, our focus is on high-precision cleaning chemistries, which include chemical replacements for NOVEC and proprietary formulas. Below is an infographic on the availabl...
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How Clean is Clean? Ultimate Guide to PCB Cleanliness Testing
The increased miniaturization in modern electronics has been continuously reducing the pitch between conductors and increasing the probability of electrochemical migration of contamination in class 3 electronic devices. Contamination, if not taken care of properly, can cause serious reliability issu...
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3M Announcement of Novec Phase-Out… What Does It Mean?
On December 20, 2022, 3M announced their plans to phase-out their Novec PFAS-based product lines by the end of 2025: “3M today announced it plans to exit per- and polyfluoroalkyl substance (PFAS) manufacturing and work to discontinue use of PFAS in its product portfolio by the end of 2025. Th...
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Challenges (and Costs) of Reporting Hazardous Air Pollutants (HAPs)
Reporting Hazardous Air Pollutants (HAPs) has become increasingly important around the world, where multiple international initiatives are committed to safeguarding public health. In the United States, the Environmental Protection Agency (EPA) employs air toxic data to create statewide inventories o...
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Case Study: Aviation MRO Cleaning with Techspray PWR-4 Citrus HF Degreaser
A large international freight carrier used a well-known d-limonene-based product (Citri-safe by Inland Chemical) to clean various soils on the belly of the aircraft, APU areas, landing gear housing areas stained with burned, caked-on Skydrol, and other substances. The issues with the current product...
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Keeping Clean During Engine Overhauls: Reciprocating Engines
If you work in the engine MRO shop, you know the struggle of tearing down an engine and cleaning its components. Even with proper care and maintenance, engines get dirty. Really dirty. Besides the effort in a complete teardown to replace worn parts and seals, engines must be completely cleaned. This...
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Aviation Oxygen Components: Cleanliness is Critical
Oxygen is vital to sustaining life, but the benign gas we breathe has the potential to become lethal in concentrated form. Each year, workers are harmed and killed by high-energy-yielding reactions resulting from inappropriate handling and cleaning of oxygen components. Aviation maintenance personn...
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Impact of Partial Discharge Through Conformal Coating on Avionics Reliability
The technological breakthroughs in the field of power electronics have transformed the automotive, military, and defense industries. Particularly, the reliance of the aerospace industry on electronic systems has increased significantly. To keep up with the aerospace industry's requirement of high po...
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Cleaning & Maintenance Guide for Aircraft Engine Nacelles
One of the dirtiest parts of a jet is the engine which is not much of a surprise. Engines have come a long way since the dawn of the jet age but they still produce a lot of carbon. Carbon is, of course, a leading cause of corrosion, but in the case of engines it can cause more problems than that. Mo...
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Top 7 Criteria for Qualifying a New Aviation MRO Degreaser
Selecting new cleaning chemicals for use in aviation maintenance, repair, and overhaul (MRO) organizations is fraught with risk, given the impacts from an ill-advised choice. The long-term effect on aircraft serviceability and safety, human health, and the environment could prove to be considerable ...
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7 Tips for Qualifying 3M Novec Replacement Vapor Degreaser Solvents
After markets reopened with a vengeance after the lifting of COVID-19 restrictions, supply chain shortages continue to be an issue. These have led to shortages, long lead times, and extreme price increases. This is challenging enough for commodity products, where one could find new sources from the ...
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Replacements for 3M Novec 71DA, 71IPA, 71DE & 72DE Solvents
Companies across industries are turning to Techspray as a replacement for expensive and difficult to find 3M Novec solvents. Our PWR-4 High-Performance Vapor Degreaser Solvents are a safer and more cost-effective alternative. They remove oil and contaminants from contacts, printed circuit boards, ba...
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Cleaning Solutions for Flap Tracks, Slat Tracks, and Other Wing Components
There are few things more unsightly than finding grease smudged all over your wing, especially on your flaps and ailerons. Not only does it look bad, but it can permanently tarnish your paint finish. But where does the grease come from? And is it only a cosmetic issue, or are there issues beyond tar...
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Guide to Degreasing Landing Gear Assemblies
Keeping aircraft clean is an essential part of the aircraft maintenance process. The FAA states that "from an AMT's viewpoint, it should be considered a regular part of aircraft maintenance." Maintaining the cleanliness of your aircraft goes far beyond aesthetic appeal. Yes, a clean aircraft does in...
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Case Study: NESHAP-Compliant Degreaser & Contact Cleaner for Aviation MRO
A major US-based airline MRO facility was struggling to replace AK225, a class of chemical that was pulled from the market in 2015 due to restrictions on ozone-depleting products. It was particularly challenging as AK225 was VOC-exempt, so it allowed cleaners to be NESHAP-compliant. Luckily Techspra...
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Safety Guide for Proper Handling of 1-Bromopropane (nPB) & Other Toxic Solvents
1-Bromopropane (1-BP or nPB) has been widely used in adhesives, dry-cleaning, steam degreasing, and in electronics and metal cleaning industries.  It can be identified as a slightly dense and colorless or faint yellow liquid with a strong odor. Although it was initially proposed as a replacemen...
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How to Mitigate the Risk of Aircraft Damage from Chemical Agents
FAA regulations require aircraft maintenance personnel to use only approved chemicals. When a failure to meet this legislative requirement can have serious consequences to aircraft and personnel safety, how can a maintenance technician be sure they comply? Technical data sheets and compliance with a...
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Proper Cleaning Keeps Drone Aircraft (UAS / UAV) Flying High
Aircrafts flying in desert environments get dirty. Really dirty. It is also the most demanding environment in the world, with blowing grit and filth being a mainstay of everyday life. This is especially troublesome with modern aircraft that are heavily reliant on electronics for sustained flight, na...
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Airlines Gain Operating Efficiency from Rigorous Ground Support Equipment (GSE) Management
Like all asset-intensive industries, airline operators struggle to maintain their return on capital employed (ROCE) above their cost of capital. Looking for efficiency gains, airlines have discovered that rigorous ground support equipment (GSE) management offers competitive and financial opportuniti...
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Techspray Aviation Cleaning Products - Video Overview
Techspray have been a mainstay for avionics maintenance and general industrial MRO for the past 40-years. We now are able to use that expertise to aviation maintenance to provide you cleaning products that are… More effective Safer and easier to use All of our products have been tes...
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Replacing n-Propyl Bromide (nPB): What You DON'T Know CAN Hurt You
Pierce Pillon, Senior Field Engineer, and Kevin Pawlowski, Application Specialist, explain the issues with n-propyl bromide (nPB) as a cleaning solvent and the most effective and efficient way to move to a safer solvent. This is edited from a webinar broadcast on November 5, 2020. Download Technic...
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EPA Considers 1-Bromopropane (n-Propyl Bromide, nPB) an “Unacceptable Risk” for Degreasing
August, 2020 – In the report “Nontechnical Summary of the Risk Evaluation for 1-Bromopropane (n-Propyl Bromide)”, the US Environmental Protection Agency (EPA) determined that the solvent “presents an unreasonable risk for 16 conditions of use.” Some of those conditions ...
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The Expert’s Guide to Degreasers & Maintenance Cleaners
What is a degreaser? A degreaser is a cleaner designed to remove grease, oils, cutting fluids, corrosion inhibitors, handling soils, fingerprints, and other contamination common in assembly, stamping and other metal fabrication in refineries, motor repair shops, airplane hangars, and factories, etc...
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Trans: the Cleaning Workhorse
Trans-1, 2 - Dichloroethylene, commonly called “trans”, is an important solvent cleaning workhorse because it has high solvency, is reasonably priced, and can easily be formulated into nonflammable blends when combined with hydrofluorocarbon (HFC), hydrofluoroether (HFE) or Hydrofluorool...
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Critical Cleaning is Lean
By Barbara and Ed Kanegsberg, BFK Solutions LLC, guest contributors According to the gospel of Lean Manufacturing, if a company is not lean, it cannot be competitive. The business will fail; workers will lose their jobs. A lean process is value-added; critical cleaning is value-added. Cleaning is r...
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How Techspray Developed a Powerful & Safe Aviation Industrial Degreaser
By Ed Vickless, Director Aerospace Business Development, Techspray A major freight company with a large fleet of aircraft was looking for a new solvent cleaner for their maintenance operation. Their health and safety engineers flagged the current aerosol cleaner as a health risk. Therefor...
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Vapor Degreasing: The Quick Guide
What is Vapor Degreasing? Vapor degreasing is the cleaning process which involves condensing solvents vapors on the object that is being cleaned. The process doesn’t require any water or scrubbing. Instead, the vapor-degreasing machine uses solvent vapors to cleanse and remove contaminants fr...
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Techspray MRO products are used by over 200 aviation companies worldwide

  • duncan
  • delta
  • fedex
  • bombardier
  • american