Soldering flux for zinc and galvanized sheets No name ZWS 1000 g (60422)

Soldering flux for zinc and galvanized sheets No name ZWS in 1000 g packaging is formulated to improve wetting and solder flow on zinc and galvanized metal surfaces. It is intended for use where reliable solder joints are required on sheet metal, roofing, gutters and HVAC components. The product facilitates solder adhesion and helps reduce surface oxidation during heating when used with appropriate solders and standard soldering tools. Follow safety precautions and prepare surfaces according to industry practice for best results.

Advantages

The flux provides consistent activation on zinc and galvanized substrates, promoting rapid solder wetting and smoother solder fillets. Its formulation reduces the need for repeated heating by limiting oxide formation during the soldering process. Supplied in a 1000 g container, the product allows for multiple repair and installation tasks without frequent restocking. The flux is compatible with common soft solders and typical gas-torch or electric-soldering tools when used according to instructions.

Suitable for

• Soldering joints on metal roofing and flashing
• Repairing and joining gutters and downspouts
• Sheet metal fabrication and repair work
• HVAC component joins and maintenance

Key specifications

• Packaging weight: 1000 g
• Target substrates: zinc and galvanized metal surfaces
• Formulation: soldering activation for improved wetting and solder flow
• Application temperature: suitable for standard soldering and brazing temperatures used on zinc and galvanized materials
• Compatibility: intended for use with common soft solders and conventional soldering tools

How to use

Clean the metal surfaces to remove dirt, oils and loose oxides before application. Apply an even, thin layer of flux to the joint area using an appropriate applicator or brush. Heat the joint with a suitable soldering iron, torch or soldering station until the flux activates and solder flows freely into the joint. Add solder progressively to achieve proper fillet formation, then allow the assembly to cool. After cooling, remove any residual flux according to the material safety guidance and local best practices.

Usage recommendations

Use personal protective equipment, ensure adequate ventilation and follow manufacturer safety data for handling and disposal. Test the flux on a small area if working with coated or painted galvanized surfaces to confirm compatibility. Store the product in a cool, dry place away from direct heat sources.