PWR-4 Industrial Maintenance Cleaner

Powerful, nonflammable & cost effective cleaner that is a safer nPB replacement

Part # Name Size Units
Per Case
Price
Per Case
Case
Qty
 
3400-20S PWR-4 Maint Cleaner - 20oz aerosol 20 oz aerosol 12 $517.56
3400-G PWR-4 Maint Cleaner - 1 gal 1 gal (3.8L) 1 $251.85
3400-5G PWR-4 Maint Cleaner - 5 gal 5 gal. 1 $883.17
3400-54G PWR-4 Maint Cleaner - 54 gal 54 gal (205L) 1 Call for pricing
Packaging Order minimum case quantity only. Extra shipping fees may apply.
Order from an authorized distributor

PWR-4... The Safer, Powerful n-Propyl Bromide (nPB) Replacement

PWR-4™ Industrial Maintenance Cleaner Blasts away oil and contaminants off of contacts, printed circuit boards, barcode instruments, switch boxes, gear boxes, and electronic motor controllers. Grease and oil flow right off, reducing the time and materials needed to scrub off stubborn soils.

Ideal where a safer, nonflammable, and cost effective cleaner is required. This innovative solvent is much safer than the four most common industrial solvents: TCE, nPB, Perc and Methylene Chloride and quickly cleans the most difficult greases and oils from electronics, relays, and motors. It is engineered to remain stable and effective over thousands of cycles in vapor degreasing equipment.

Removes oils, greases, silicones, refrigerant oils, fluxes, adhesives and other common industrial contaminants. Used for cleaning medical instruments, implants and other devices including orthopedic implants, monitoring devices, oxygen and gas lines. This solvent can be used as a carrier fluid like for silicone-based lubricant coatings.

  • Nonflammable
  • Much safer than most common industrial solvents — TCE, nPB, Perc & Methylene Chloride
  • Powerful cleaner — Ideal for degreasing and contact cleaning
  • Available in aerosol or bulk for vapor-degreasing, ultrasonic and immersion cleaning
  • Rapid evaporation
  • Non-ozone depleting
  • Cleaning applications: electronics, relays, switches & breakers, transformers, and electric motors and generators
  • NSF registered K1 and K2


Technical papers:

PWR-4 performance testing
Overview of health & safety impact of nPB and other toxic industrial cleaners
For more information, check out our The Expert’s Guide to Degreasers & Maintenance Cleaners.

 

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Vapor Degreaser Setting Guidelines

  • Boiling point – 118°F / 48°C
  • Boil sump temp set – 127°F / 53°C  
  • High solvent temp set – 136°F / 58°C
  • Refrigerant high temp set – 109°F / 43°C

Note: As with all vapor degreaser equipment and processes, observe all safety precautions, guidelines and operating rules associated with these units. Failure to do so may put operations personnel at risk. Avoid excessive vapor losses, loss of refrigeration, excessive boil sump heat, etc. Make sure all equipment is operated in accordance with the manufacturer’s guidelines and instructions. If in doubt, contact your manufacturer immediately.


FAQ's

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).
How do you use an aerosol cleaner?

Hold object to be cleaned in vertical position. Pull trigger gently to control solvent flow rate. Spray from top to bottom, allowing the liquid to flush away contaminants. 

There are a number of regulations prohibiting the use of chlorinated solvents. Should I be concerned with Trans, which is used in many of your nonflammable cleaners?

No, it should not be a concern. Many of Techspray's nonflammable solvents (e.g. G3, Precision-V, PWR-4) contain 1,2-trans-dichloroethylene (Trans, CAS# 156-60-5), which has caused confusion. The regulations controlling chlorinated solvents do not generally pertain to Trans. The following are the reasons: Many are confused with “chloro” substances due to the NESHAP requirements. The big 3 chlorinated substances are Perchloroethylene (Perc), Trichloroethylene (TCE), and methylene chloride. The association of those with all chlorinated substances is not valid. NESHAP requirements only refer to restrictions of emissions of hazardous air pollutants (HAP). Of the nearly 200 substances listed as HAP’s, Trans is not on that list. Reference the following link: https://www.epa.gov/haps/initial-list-hazardous-air-pollutants-modifications. Trans has the same exposure limit (per ACGIH) time-weighted average (TWA) as 2-propanol (IPA) -- 200 ppm. In contrast, n-Propyl Bromide (nPB) is commonly used in vapor degreasers, with TWA established by ACGIH of 10 ppm. It has been proposed to be reduced to 0.1 ppm. nPB is also listed on various carcinogen lists, notably Prop 65.

Articles

Krytox Removal with Techspray PWR-4 Aviation Degreaser
Techspray tests the effectiveness of their PWR-4 aviation degreaser against the industry standard, Krytox. Access the case study for details.
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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. The lack of toxicity knowledge and control can lead to employee ill health, downtim...
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Cleaning Challenges When Machining Medical Implants
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EPA: Perchloroethylene (perc, PCE) Poses an “Unreasonable Risk” of Injury to Health for Dry Cleaning
The EPA report “Perchloroethylene Draft Revised Unreasonable Risk Determination for Public Comment”, resolved the sixty(60) uses that pose unreasonable risks . . .
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7 Tips for Qualifying 3M Novec Replacement Vapor Degreaser Solvents
Currently, companies are scrambling to identify and qualify replacements for common solvents used for vapor degreasing: 3M Novec 71DA, 71IPA, 71DE and 72DE. 3M’s Belgium-based chemical processing plant has been shut down (as of May ’22) due to stringent discharge standards of PFAS. The loss of this ...
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Safety Guide for Proper Handling of 1-Bromopropane (nPB) & Other Toxic Solvents
Employees involved in the production of 1-BP or those using it in commercial applications are those most likely to experience high exposure levels. Therefore, understanding how to evaluate, measure, and control workers’ exposure to this chemical is imperative to safe operations or to identify the co...
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Vapor Degreaser Video Demo & Overview
Video overview of how vapor degreasing works, best practices for equipment set-up, and a demonstration of the cleaning process.
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Replacing n-Propyl Bromide (nPB): What You DON'T Know CAN Hurt You
Welcome to our webinar, our Techspray webinar is replacing n-propyl bromide (nPB), which you don't know can hurt you. We're going to be going over issues with n-propyl bromide, and how to identify and qualify replacement as efficiently as possible. You guys aren't chemical experts, at least I assume...
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EPA Considers 1-Bromopropane (n-Propyl Bromide, nPB) an “Unacceptable Risk” for Degreasing
In the report “Nontechnical Summary of the Risk Evaluation for 1-Bromopropane (n-Propyl Bromide)”, the US Environmental Protection Agency (EPA) has determined that this solvent “presents an unreasonable risk for 16 conditions of use.” Those conditions of use include: Industrial and consumer use for ...
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Isopropyl Alcohol (IPA) Replacements for Electronic Assembly and Repair
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The Expert’s Guide to Degreasers & Maintenance Cleaners
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.
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Optimizing the Vapor Degreasing Process
Vapor degreasers use a closed-loop system that works very reliably and efficiently as long as it is set-up correctly. If not, you can experience solvent loss, equipment corrosion, loss of cleaning performance, 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 Hydrofluoroolefin (HFO) s...
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Videos

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