Laco Soldering Flux Paste is a self-cleaning flux for use with Copper Tube & Copper fittings. Acti...Laco Soldering Flux Paste is a self-cleaning flux for use with Copper Tube & Copper fittings. Acting as a chemical cleaning agent to detach impurities from joint surfaces when soldering to ensure a better joint. It has an acid-free non-toxic formula, free of lead & zinc chloride offering fitters the benefits of savings, safety and certainty. This product is suitable for both water & gas installations. The flux paste can be applied to joints prior to soldering. This 125g tub comes with a built-in brush in the cap, and is ideal for plumbing tasks, aiding the flow of molten solder for a secure bond. LA-CO Regular Soldering Flux Paste is a non-acid, non-toxic soldering flux paste that cleans as you solder. It is safe in use, cost-saving, helps to produce reliable joints, and is WRAS (Water Regulations Advisory Scheme) approved. Suitable for use with copper, brass, galvanized iron, lead, zinc, tin, silver, nickel, mild steel, terne plate (tin-plated iron or steel) and malleable iron. Supplied in a 125g tub with a brush in the lid.
This guide is for plumbers and DIY enthusiasts using LA-CO Flux Paste for soldering copper, brass, and other metal fittings. The key benefit of this flux is its self-cleaning action, which helps create strong, reliable solder joints. Note that while it's non-toxic, proper ventilation is always recommended when soldering.
All features
Model Part Number
LAC-22195
Brand
Laco
Extended Product Information
FAQs
What is LA-CO Flux Paste used for?
LA-CO Flux Paste is used to prepare metal surfaces for soldering, particularly in plumbing and metalworking. It cleans and promotes solder flow.
Is LA-CO Flux Paste safe to use?
Yes, LA-CO Flux Paste is non-toxic and free of lead and zinc chloride. However, always use it in a well-ventilated area.
What metals can I use LA-CO Flux Paste with?
It is suitable for use with copper, brass, galvanized iron, lead, zinc, tin, silver, nickel, mild steel, terne plate (tin-plated iron or steel), and malleable iron.
How do I apply the flux?
Apply a thin, even coat of flux to the surfaces of the metal joints before soldering, using the brush in the cap.
Do I need to clean the joint after soldering?
Yes, it's recommended to clean the joint with a damp cloth or wire brush after soldering to remove any flux residue.
What is WRAS approval?
WRAS (Water Regulations Advisory Scheme) approval means the product meets the necessary standards for use in water installations.
How should I store the flux?
Store the flux in a cool, dry place with the cap tightly closed to prevent it from drying out.
Troubleshooting
Solder is not flowing properly.
Ensure the joint is clean and prepped, and apply sufficient heat to the metal. Make sure to apply a sufficient amount of flux.
Joint is leaking after soldering.
Ensure the joint is properly heated and that the solder has flowed completely around the fitting. Re-solder the joint if needed.
Flux residue is difficult to remove.
Wipe away excess flux with a damp cloth or wire brush after soldering. For more stubborn residue, use a suitable solvent (check metal compatibility).
Pros and Cons
Pros
Non-toxic and safe to use.
Cleans surfaces while soldering for stronger joints.
Compatible with a wide range of metals.
Includes a built-in brush for easy application.
WRAS approved, suitable for water installations.
Cost-effective with reliable results.
Cons
Requires proper ventilation during use.
May require more effort to clean up after soldering depending on the metal being soldered.
Not suitable for all types of soldering applications (e.g., electronics).
Proper joint preparation is still necessary for optimal results.
Setup, Compatibility & Care
Setup:
Ensure you have the LA-CO Flux Paste and the materials you intend to solder.
Have the necessary tools like a torch, solder, wire brush, and safety gear.
Compatibility:
Suitable for use with copper, brass, galvanized iron, lead, zinc, tin, silver, nickel, mild steel, terne plate, and malleable iron.
Care:
Store in a cool, dry place.
Keep the cap on the tub when not in use to prevent the flux from drying out.