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SuprClean Heavy Duty Flux Remover

Heavy Duty Flux Remover - SuprClean™ is the industry’s most versatile cleaner for touch-up repair and rework of printed circuit boards. This powerful flux remover dries instantly with no residue making it ideal for heavy duty printed circuit board cleaning, especially on age hardened
flux. It is optimized for use on R, RA, RMA, and SA fluxes. 

Heavy Duty Flux Remover - SuprClean - EU is the preferred choice for tough SMT defluxing, thru-hole rework, BGA boards, hybrids and connectors. Use to remove tough lead-free solder pastes and to spot-clean most acrylic conformal coatings. 

Safe on most electronic components, surface mount components, epoxies, nylon, polyethylene and
polypropylene. Test on other plastics before use. Dispense directly from the can or use with the MicroCare TriggerGrip cleaning system for faster, safer and more economical cleaning of printed circuit boards at the work bench.

*** New Formula - Technical Bulletin attached ***

Key Products Features & Benefits: 

  • Best for cleaning heavy duty rosin, RA, and RMA fluxes including MIL-SPEC cable and connector flux cleaning. 
  • Very strong, low odor & fast drying.
  • Eliminates white residues without rinsing or drying.
  • ESD-safe.
  • TriggerGrip™ cleaning system and StatZap™ compatible


Product Number : MCC-SPR2127

Prod. No. MCC-SPR
Heavy Duty Flux Remover - 340G Aerosol

Data Sheets and Info

Health & Safety

Technical Bulletin

Data Sheet

Product Guide


Q - Can l remove Humiseal 1B31 conformal coating with MicroCare Solvents
A - We are using MicroCare DC1 for lacquer removal, Humiseal 1B31. It works OK, but not perfect, and we do quite a few each day. Is there anything better? (From Motti in Israel)

(Editor’s note: “Lacquer” is a term often used in Europe to describe conformal coatings.)

We’re a little surprised the No-Clean Flux Remover – VeriClean™ (#MCC-DC1) works at all. This cleaner is siloxane- based and is the best choice for SILICONE conformal coatings. But the Humiseal 1B31 is an acrylic. According to the Humiseal product spec sheet, “HumiSeal 1B31 is a fast air drying, single component, acrylic coating that provides excellent moisture and environmental protection for printed circuit assemblies.” Acrylics are best removed with the Lead-Free Flux Remover – PowerClean™ or the Heavy Duty Flux Remover – SuprClean™, which are much better cleaners for the thin, hard acrylic coatings. Try one of them and you will see the results are much faster and better.

Be advised the one type of confiormal coating we CAN’T remove are the “thermoset” materials, which take a heat-cure process, such as epoxies and Paralene.

Q - Which MicroCare Solvent is the strongest?
A -
As odd as it seems, “strongest” is a relative term. Cleaning strength depends less upon the solvent and more upon the contamination being removed. For example, when it comes to removing water-soluble fluxes and pastes, nothing is as strong as the MultiTask Surface Cleaner – MultiClean™, but this is generally considered one of Micro Care’s milder, softer solvents. So to really say which cleaner is the strongest, you have to know what the contamination is that you’re trying to remove.

Cleaning strength is measured by the Kari-Butanol rating of the solvent, shown on MicroCare product specifications as the “Kb number.” (Some competitors do not offer Kbratings on their products, which we find odd.) A rating of 20 or so is mild while anything over 70 is a muscular solvent. Our strongest solvent, the Lead-Free Flux Remover – PowerClean™, has a Kb value over 100.

All that being said, if you need real muscle for age-hardened rosin fluxes or maybe some nasty conformal coatings, try these: Lead-Free Flux Remover – PowerClean™ (#MCC-PW2) or Heavy Duty Flux Remover – SuprClean™ (#MCC-SPR) for fast-drying choices, and the Uncured Epoxy Remover – ExPoxy™ (#MCC-EPX) for a slower-drying choice. All are superior choices for most cleaning applications. If you are cleaning residues that may be soluble in water, go with the money-saving Reflow Oven Cleaner (#MCC-ROC).

Here are the details…
•Heavy Duty Flux Remover – SuprClean™ was first introduced late in 1998. Formulated specifically for high-powered defluxing, it cleans great, dries fast, has almost no aroma, and is nonflammable. It is a great choice for cleaning most fluxes, oils, grease and some inks. However, it is often too strong for some applications: the cleaner creates white residues when it comes into contact with some “no clean” fluxes. We highly recommend Heavy Duty Flux Remover – SuprClean™, especially if you can use the TriggerGrip™ dispensing system. Ozone-safe, easy-to-use Heavy Duty Flux Remover – SuprClean™ rocks with cleaning power. It totally rules. It knows no bounds!
•Lead-Free Flux Remover – PowerClean™ is the strongest of the nonflammable, fast-drying solvents. It is stronger than SuprClean™ and also is completely ozone-safe and dries very quickly. Most importantly, it works great on the high-temperature lead-free solders and pastes. It easily eliminates the white residues that often occur with those materials. And it’s the least expensive product in it’s class. It also can be used with the TriggerGrip™ system.
•The Uncured Epoxy Remover is a combination defluxer, degreaser and stencil cleaner. It has been available for more than a decade. Based on a hydrocarbons it is 100% a volatile organic compound, so it’s less than ideal in California. It is relatively slow drying and about as strong as the old 1,1,1-TCA (especially on grease, oils and other heavy contamination). This means it is ideal for use in those circumstances when you are cleaning more than just circuit boards — such as mechanical parts and even housings and cabinetry. Overall, it works great, is very versatile and highly affordable, delivers superior toxicity ratings, and less expensive than other choices.
•The Reflow Oven Cleaner is a powerful, water-based cleaner available in refillable pump sprays and bulk packages. It is an aggressive, nonflammable, slow-drying solvent engineered specifically to remove baked-on fluxes from inside wave solder machines and reflow ovens. This cleaner dissolves conveyor-clogging flux residues inside the ovens. The convenient, adjustable pump spray makes cleaning easy and fast. The chemical is safe on pallets, baffles, heating elements, clamps, chains, pulleys, drive gears and housings. Rinsing is never required.

One final warning: all of these products are very, very aggressive cleaners. Before putting them into wide-spread use, you should test them thoroughly, especially on soft plastics, gaskets, insulation, and rubber. While they will not damage today’s tough SMT components, they can easily chew up older passive components, housings and mechanical parts (e.g., platens, drive wheels) coming in for repair.

Associated Products

MicroCare Trigger Grip Dispenser

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MicroCare Bench Mounting Kit

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MicroCare Epoxy Pre-Saturated Wipes

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