RS PRO 12mL Pen Solder Flux

  • RS Stock No. 251-3637
  • Manufacturer RS PRO
Product overview and Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

Engineers Pens

Precision application pens designed for the service and repair engineer to apply small quantities of cleaners, oils and coatings or where application in confined areas is required. Ideal for spot cleaning, repair and service of communication equipment, electrical and electronic control equipment, office equipment etc. All available as packs of 5 12ml pens.

Clear protective coating: a conformal coating to protect PCBs against environment attack after repair.

Connector lubricant: a contact lubricant for micro-switches, relays, edge connectors, especially suitable for gold contacts, resists attack and suppresses arcing.

Mechanical oil: clear oil containing molybdenum and good mechanical lubrication. Resists drain when moving parts at rest.

Surface mount flux: a quick- drying, mildly activated (RMA type) no clean flux for removing components and making quick repairs.

Cleaning solvent: removes greases, oils, flux residues and conformal coatings, fast drying leaving a clean dry surface.

RS PRO Solder Flux Pen

From RS PRO, this handy solder flux pen is ideal for surface mount rework applications. The quick-drying, no-clean flux is supplied in a handy pen format that makes replacing surface mount components easy and convenient. The pen is fitted with a wide-angle actuator to give a protective film and an extension tube actuator for pinpoint application. This handy applicator is ideal for precision and control.

Features and Benefits

• 100% Ozone Friendly.
• Zero halide content so no cleaning is required.
• Passes copper plate and copper mirror corrosion (residue) test.
• For use with hot air, hot gas or conventional soldering techniques.
• Excellent solderability. Excellent solder spreadability.
• Mildy Actived (RMA Type)
• Very high reliability.
• Low non-tacky / non-corrosive residue.


An application of spray flux to solder joints will aid reflow when heating to remove surface mount components from a circuit board. The flux should be applied to solder pads for the placement of new components, with hot air or hot gas, or using conventional solder and iron.

Spray flux can also be used as an anti-tarnish, protective film on bare copper or tinned tracks providing excellent solderability for up to six months. This solder flux is particularly recommended for precision products e.g. telecommunications or professional computers where a high degree of reliability is required.


RS PRO aims to be your go-to brand for reliability and value for money. We source great parts at great prices and test everything with our in-house experts to ensure the quality you need.

When it comes to tools, we know that versatility and dependability are what you need. As such, we stock a variety of mainstay and specialist tools to suit any application. Whether you're a professional electrician, plumber, builder or DIY enthusiast, RS PRO is here to support you.


  • Flammable solvent
Attribute Value
Package Type Pen
Package Size 12ml
In stock for delivery within 8 working days
Price Each (In a Pack of 5)
HK$ 50.374
(exc. GST)
Per unit
Per Pack*
5 - 20
25 - 45
50 +
*price indicative
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