LA-CO Soldering Flux Paste - 125g Steel

* Recommended for both Water and Gas applications * Water soluble paste that won't leave residue i...

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Product Information

Full details

This guide is for plumbers and DIY enthusiasts who need a reliable soldering flux for various metal pipes. The LA-CO Soldering Flux Paste offers a self-cleaning action and is suitable for both water and gas applications, ensuring strong and clean solder joints. However, it's essential to note that this flux is not for use on Stainless Steel or Aluminum.

All features

Model Part Number	22105
Brand	Laco

Extended Product Information

FAQs

What metals can I use this flux with?

This flux can be used on copper, brass, galvanized iron, lead, zinc, tin, silver, nickel, mild steel, terne plate, and malleable iron.

Is this flux safe for potable water?

Yes, this flux is UK-WRAS approved and suitable for potable water applications.

Is the flux lead-free?

Yes, LA-CO Soldering Flux Paste is lead-free.

Can I use this flux on stainless steel?

No, this flux is not for use on Stainless Steel or Aluminium.

How do I clean up after soldering?

Wipe away any excess flux with a damp cloth after the joint has cooled.

What is the shelf life of this flux?

The shelf life of the flux depends on storage conditions. Store in a cool, dry place and ensure the container is sealed.

What are the key benefits of using this flux?

Key benefits include self-cleaning action, a non-toxic formula, and suitability for both water and gas applications.

Troubleshooting

Solder not flowing properly

Ensure the pipe and fitting surfaces are clean. Apply more flux and ensure even heating.

Joint leaks after soldering

Re-clean the joint and reapply flux and solder. Make sure the joint is heated properly and the solder flows completely around the joint.

Flux residue remains after soldering

Wipe away excess flux with a damp cloth after the joint has cooled.

Pros and Cons

Pros

Cleans pipe on application, allowing solder to run more smoothly.
Suitable for both water and gas applications.
Non-acid, non-toxic, and lead-free formula.
Meets industry standards for quality and safety.
Water-soluble for easy cleanup.

Cons

Not suitable for use on Stainless Steel or Aluminum.
May require extra care to ensure all flux is flushed from the system after soldering.
May not be suitable for all types of metal pipes

Setup, Compatibility & Care

Preparation: Clean the pipe and fitting surfaces thoroughly. Remove any dirt, grease, or oxidation. Use a wire brush or emery cloth to ensure a clean surface.
Application: Apply a thin, even layer of LA-CO Soldering Flux Paste to both the pipe end and the inside of the fitting.
Assembly: Insert the pipe into the fitting, ensuring a proper fit.
Heating & Soldering: Apply heat to the fitting with a torch, and then apply solder to the joint. The flux will help the solder flow and adhere.
Cooling & Cleaning: Allow the joint to cool completely. Wipe away any excess flux with a damp cloth.

Compatibility: This flux is compatible with copper, brass, galvanized iron, lead, zinc, tin, silver, nickel, mild steel, terne plate, and malleable iron. It is not suitable for Stainless Steel or Aluminium.

Care: Store the flux in a cool, dry place. Ensure the container is tightly sealed to prevent drying out.