Flux Removers


Flux removers (defluxers) remove flux residues and other contaminants left by manufacture, rework, or repair of printed circuit boards. Residues from higher, lead-free temperatures are more baked on and harder to clean. PWR-4™, G3®, E-LINE™ and Precision-V™ flux removers have been proven very effective at removing fluxes baked on at lead-free temperatures.

Micro-components and fine pitch leads are delicate and easily damaged, so brushing and scrubbing should be avoided if possible. Both G3, E-LINE™ and Precision-V have a powerful spray and strong solvent that blasts off residues and cleans areas under components that a brush cannot touch.

Techspray offers traditional solvent-based cleaners and cutting-edge water-based technologies marketed under the Techspray Renew™ brand.


TECHSPRAY RENEW™ branded cleaners are innovative solutions that combine the best of current “green” technologies to make the most powerful eco-friendly cleaners on the market

All Techspray flux removers have the following advantages:

  • Help create bright, shiny solder joints
  • Improve PCB reliability
  • Prevent conformal coating defects
  • Prevent corrosion from contamination
  • RoHS compliant


Solvent Defluxes

Flux Remover • 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,
ultrasonic and immersion cleaning
• Rapid evaporation
• Non-ozone depleting
Powerful, nonflammable and cost-effective cleaner
Cleans away flux residues and other contaminants in vapor cleaning and ultrasonic application. Easily removes residues from high temperature lead free soldering operations, no-clean fluxes and all handling soils.
3401-G 1 gal. (3.8L) pail
3401-5G 5 gal. (18.9L) pail
3401-54G 54 gal. (204L) drum




      Flux Remover • Nonflammable
• Powerful cleaner
• Proven effective for lead-free processes
• All-in-one cleaner and defluxer
• Rapid evaporation
• Non-ozone depleting
Strong and fast-acting flux remover
Remove flux residues and other contaminants left by manufacture, rework, or repair of printed circuit boards.
1631-5S 5 oz. (142g) aerosol w/brush attachment
1631-16S 16 oz. (454g) aerosol
1631-16SB 16 oz. (454g) aerosol w/brush attachment



      No-Clean Flux Remover • Nonflammable
• Ideal for no-clean fluxes
• Proven effective for lead-free processes
• Rapid evaporation
• Non-ozone depleting
Strong and fast-acting no-clean flux remover
Remove no-clean flux and white residues left by manufacture, rework, or repair of printed circuit boards.
1634-12S 12 oz. (340g) aerosol



       Universal Cleaner • Nonflammable
• Powerful cleaner
• Effective as maintenance cleaner and flux remover
• Rapid evaporation
• Non-ozone depleting
• Dielectric strength – 27.3 kV
Nonflammable, powerful liquid cleaner
Engineered to remove oils, fluxes and other contamination using a manual soak cleaning process or ultrasonic equipment.
1638-G 1 gal. (3.8L) pail
1638-5G 5 gal. (19L) pail
1638-54G 54 gal. (205L) drum



Flux Remover & Maintenance Cleaner • Nonflammable
• Low VOC
• High precision – residue-free
• Rapid evaporation
• Non-ozone depleting
• Safe on most plastics
Nonflammable and powerful precision cleaner
Formulated to reduce VOCs within your facility. Ideal for aviation and other applications where strict VOC caps apply (based on EPA VOC exemptions). Bulk chemicals ideal for soak cleaning and ultrasonic (not intended for vapor degreaser).
1651-16S 16 oz. (454g) aerosol
1651-5G 5 gal. (19L) pail



Flux Remover & Maintenance Cleaner • Powerful cleaner
• Proven effective for lead- free processes
• Ideal for sensitive plastics
Powerful and economical flux remover
Hydrocarbon-based defluxer formulated to be powerful, yet very economical. Eliminates brushing and scrubbing, saving time and materials.
1621-10S 10 oz. (283g) aerosol
1621-10SB 10 oz. (283g) aerosol w/brush attachment
1621-G 1 gal. (3.8L) can
1621-5G 5 gal (19L) pail
1621-54G 54 gal (205L) drum
Specifications: GM H1013; Ford Tox #142431, USDA: NSF registered K-2 aerosol and bulk.



Vapor Degreaser Solvents

Techspray offers a wide variety of vapor degreaser formulas engineered to meet challenging requirements like cleanliness specifications, difficult-to-clean soils, solvent-sensitive materials, and restrictive regulations.

All Techspray solvents have azeotropic properties that allow them to remain stable as they are cycled in a vapor degreaser. They are not reactive or corrosive to metals commonly found in the construction of vapor degreasers.

PWR-4™ solvents are designed to replace nPB, TCE and Perc, matching and surpassing cleaning performance without the safety concerns.

Precision-V™ vapor degreaser solvents are ideal replacements for AK-225 based cleaners, which were phased out due to the ozone depletion restrictions of the Montreal Protocol.

To order, add the following to the part # shown in the chart below:

-1G for 1 gal. (3.8L)

-5G for 5 gal. (19L)

-54G for 54 gal. (205L)

Part # Product Name Base Solvents kB value Boiling Point (°F/°C) VOC
GWP Degreasing Defluxing Plastic- Safe
1654 VC-1200 DuPont Vertrel® XF 56 94/34 552 684
1655 VC-1500 DuPont Vertrel® XF 62 90/32 562 663
1656 VC-1600 DuPont Vertrel® XF 100 106/41 1063 264
1686 ME-1500 3M Novec 7100/7200 58 104/40 889 43
1680 AE-1000 Asahi AE3000 ~0 133/56 ND 540
1681 AE-1400 Asahi AE3000 ND 139/54 ND 540
3400 PWR4 Maintenance Cleaner 3M Novec 7100 100 118/48 1201 ND
3401 PWR4 Flux Remover 3M Novec 7100 100 118/48 1201 ND
ND=Not Defined