PWR-4 Flux Remover

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PWR-4 Flux Remover

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Sku Number Name Size Units
Per Case
3401-G PWR-4 Flux Remover - 1 gal } 1 gal (3.8L) 1
3401-5G PWR-4 Flux Remover - 5 gal } 5 gal. 1
3401-54G PWR-4 Flux Remover - 54 gal } 54 gal (205L) 1
Packaging Order minimum case quantity only. Extra shipping fees may apply.
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PWR-4... The Safer, Powerful n-Propyl Bromide (nPB) Replacement

PWR-4™ Flux Remover is 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 baked-on R, RMA & no-clean fluxes from electronic assemblies. It is engineered to remain stable and effective over thousands of cycles in vapor degreasing equipment.

  • Nonflammable
  • Much safer than most common industrial solvents — TCE, nPB, Perc & Methylene Chloride
  • Powerful cleaner - Effective on R, RMA & no-clean fluxes
  • Available in bulk for vapor-degreasing, ultra-sonic and immersion cleaning
  • Rapid evaporation
  • Non-ozone depleting


Technical papers:

PWR-4 performance testing
Overview of health & safety impact of nPB and other toxic industrial cleaners

pwr-4
Click here for more info on PWR-4

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solvent line brochure.

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

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.

Are PWR-4 cleaners good replacements for n-propyl bromide (nPB)?

Yes, PWR-4 high performance solvent cleaners are nonflammable, powerful cleaners like nPB, safer than nPB, and are also economically priced.

How do I figure out the shelf life of a product?

The shelf life of a product can be found on either the technical data sheet (TDS), available on the product page, or by looking on the certificate on conformance (COC). The COC can be downloaded by going to https://www.techspray.com/coc. Once you have the shelf life, you will need to add it to the manufacture date for a use-by date. The manufacture date can be identified by the batch number. The batch code used on most of our products are manufacture dates in the Julian Date format. The format is YYDDD, where YY = year, DDD = day. For example, 19200 translates to the 200th day of 2019, or July 19, 2019. This webpage explains and provides charts to help interpret our batch numbers: https://www.techspray.com/batch-codes.