Everflux is a water soluble plumbing flux trusted by plumbers for over 40 years. It cleans and solders copper pipe simultaneously, making joints faster and more reliable. Available in multiple sizes and application formats to suit different working preferences.
Everflux has been the go-to plumbing flux on British building sites for decades, and there is a reason it has stuck around. As a water soluble flux with self-cleaning properties, it removes oxides from copper pipe as it works, so you are not fighting the material before you have even started. The result is a cleaner joint, formed faster, with less faff.
The 250ml tub is a practical size for regular site work or a busy workshop. Big enough to last through a decent job, small enough to actually fit in a tool bag without taking over. If you are sweating copper fittings day in and day out, this is the size that tends to sit on the bench.
Where Everflux Gets Used
Plumbers use Everflux across the board for copper pipe installation, whether that is domestic heating systems, hot and cold water supplies, or commercial pipework. The self-cleaning action means it is particularly useful where pipe surfaces are not in pristine condition, which, if we are being honest, is most of the time on a live site.
Application Options Worth Knowing About
Everflux comes in several formats depending on how you prefer to apply it. The tub and brush combination in this 250ml format is the most common choice for workshop or bench soldering. There is also a pocket-sized stick version for when you are working in awkward spots or just want something that travels light. Having the right format for the job genuinely speeds things up.
It is water soluble, which matters for cleanup and for compatibility with modern plumbing systems where residual flux can cause corrosion over time. Rinse the joint area after soldering and you are done.
Pro Tip: Apply Everflux sparingly and evenly around the pipe and fitting socket before heating: too much flux can migrate into the pipework and cause long-term corrosion issues, particularly in sealed heating systems.
Everflux is used in the soldering of copper pipe and fittings across plumbing and heating installations. It is suited to domestic and commercial work, covering everything from new-build heating circuits and bathroom pipework to repair and maintenance jobs on existing copper systems. The self-cleaning action makes it particularly useful where pipe surfaces have light oxidation, which saves time on preparation without compromising the quality of the finished joint.
Best For
Soldering copper pipe and fittings
Domestic heating systems
Hot and cold water supplies
Commercial plumbing installations
Repair and maintenance work on copper pipework
Works With
Copper pipe
Copper solder fittings
Standard soft solder
Lead-free solder
Key Features
Water soluble formula
Self-cleaning action removes oxides during soldering
High-speed flux technology
Over 40 years of proven use
Multiple application formats available
Not suitable for: Not suitable for use with stainless steel, aluminium, or non-copper metals without checking compatibility first. Not intended for use with push-fit or compression fittings where no soldering is involved.
Clean the outside of the pipe end and the inside of the fitting socket with wire wool or abrasive cloth before applying flux. Apply a thin, even coat of Everflux to both surfaces using the brush provided or a small flux brush. Assemble the joint immediately and apply heat evenly until the solder flows freely around the fitting. Remove the heat source and allow the joint to cool naturally without disturbing it.Once soldering is complete, wipe away any excess flux residue with a damp cloth. Being water soluble, Everflux rinses off cleanly, which is worth doing promptly to avoid any surface staining on the copper.
Cut the copper pipe cleanly and deburr the end inside and out
Clean the pipe end and fitting socket with wire wool or fine abrasive cloth until bright
Apply a thin, even coat of Everflux to the outside of the pipe end
Apply flux to the inside of the fitting socket as well
Push the fitting firmly onto the pipe and position it correctly before heating
Apply heat evenly around the fitting with a blowtorch until the flux begins to bubble
Touch solder to the joint edge and allow it to be drawn in by capillary action
Remove heat and leave the joint undisturbed until fully cooled
Wipe away excess flux residue with a damp cloth once cooled
Is Everflux suitable for drinking water and potable systems?
Everflux is a widely used flux for copper pipework including water supply installations. Always confirm the specific product batch is approved for potable water use by checking the current product data sheet, as regulations around flux use in drinking water systems are specific and worth verifying before use.
Does Everflux need to be washed off after soldering?
Yes, it is good practice to wipe or rinse off the residual flux after the joint has cooled. Being water soluble, Everflux is straightforward to remove with a damp cloth. Leaving flux residue on copper over time can cause surface corrosion, particularly on heating systems.
What is the difference between the tub, stick, and brush formats?
The tub formats, including this 250ml size, come with a brush for applying flux directly from the container, which suits bench work and regular soldering jobs well. The pocket-sized stick is a solid flux format that applies like a lip balm, useful for working in awkward locations or when you want minimal kit to carry. Both contain the same Everflux formula.
Everflux is a water soluble, self-cleaning plumbing flux formulated for use with copper pipe and fittings. The chemistry is designed to remove copper oxide from joint surfaces during the soldering process, reducing the need for aggressive mechanical cleaning and improving solder flow. The water soluble base makes post-solder cleanup straightforward and reduces the risk of corrosive residue in closed systems.
Volume
250ml
Type
Water soluble plumbing flux
Application Method
Brush and tub
Suitable Materials
Copper pipe and fittings
Solubility
Water soluble
Size
125g, 475g
Box Quantity
1
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