Description
This product made by Schwan is a lead-free soft solder alloy designed to meet modern environmental requirements in soldering work. The solder wire is based on a tin-copper-zinc (SnCuZn) alloy. The product comes on a practical small plastic reel, which makes the wire easy to handle and feed while you work. The wire diameter is 2 mm, a general-purpose size for many kinds of soldering jobs.
The core of the solder wire contains an integrated flux (2.5%) based on resin (rosin) with added activators. This built-in flux is an essential part of the process, as it cleans oxides off the metal surfaces being soldered during heating and improves the spreading (wetting) of the molten solder, ensuring a reliable, durable electrical joint.
The product is suitable for all types of soldering, taking into account the working temperatures typical of lead-free alloys. According to the safety data, the product contains ingredients (such as resin-based flux) that can cause respiratory symptoms or skin reactions, so adequate ventilation and protection must be provided in the work area.
Intended use:
This lead-free solder is intended for professional use in all kinds of electrical engineering and electronics assembly and repair work.
- General electronics and electrical work: Suitable for attaching components to circuit boards, soldering connectors and joining cables and wires. The 2 mm thickness is ideal for medium-sized and larger solder points, delivering enough solder quickly.
- Repair and maintenance: Used in the maintenance and repair of all kinds of electrical equipment where lead-free solder is required. The integrated flux speeds up work, as separate application of flux is not always needed.
Package contents:
The product package contains the following:
- 1 pcs lead-free solder reel (SnCuZn), 2 mm.
Features:
The key features of the product are optimised for a smooth, reliable soldering process.
- Lead-free composition: Based on a tin-copper-zinc (SnCuZn) alloy, which makes it suitable where the use of lead is restricted or prohibited (RoHS compliance).
- Built-in flux (2.5%): The resin-based flux in the core of the wire is activated by heat, making soldering easier without separate flux in most cases.
- Practical reel: The small plastic reel protects the wire from damage and tangling and allows precise feeding to the soldering point.
Technical specifications:
The technical specifications and material composition of the product are listed below.
- Product type: Soft solder wire with flux core.
- Alloy: SnCuZn (tin, copper, zinc).
- Wire diameter: 2 mm.
- Flux content: 2.5%.
- Flux type: Resin (rosin) with activators.
- Packaging type: Plastic reel.
Instructions for use:
Before soldering, make sure the metal surfaces to be joined are free of dirt, grease and thick oxide layers. Set the soldering iron temperature to suit the lead-free SnCuZn alloy; the temperature needed is typically higher than with traditional leaded solders. Heat the joint to be soldered with the tip of the iron and feed the solder wire directly into the joint (not onto the tip of the iron). Let the flux activate and the solder melt and spread evenly around the joint. Remove the iron and let the joint cool undisturbed, without vibration or movement, to ensure a durable joint. Make sure there is adequate ventilation during the work.
Warnings:
Follow the safety instructions when handling and using the product. The information is based on the product’s safety data sheet.
- Respiratory hazard (H334): The fumes produced during soldering (especially from the flux) can cause allergy or asthma symptoms or breathing difficulties if inhaled. The work area must have good ventilation and, where necessary, local exhaust or a respirator must be used.
- Skin sensitisation (H317): The product may cause an allergic skin reaction. Avoid direct and repeated skin contact. Wear protective gloves and wash your hands thoroughly after work.
- Hot surfaces: The soldering iron and molten solder are very hot and cause a risk of burns.
Frequently asked questions (FAQ):
Answers to the most common questions about this solder.
- What is the melting temperature of this solder?:
An exact melting point is not specified in the product data, but this is an SnCuZn alloy. Lead-free solders usually have a higher melting point (often above 220 °C) than traditional leaded solders. Make sure your soldering station has enough power and a high enough temperature setting. - Do I need separate flux?:
For most normal soldering work on clean surfaces, you do not. The solder wire has 2.5% flux in its core, which is enough for normal oxide removal and spreading of the solder. Heavily oxidised surfaces may need pre-cleaning or additional flux.
Recycling instructions:
The empty plastic reel can be recycled as plastic packaging waste. Dispose of any unused solder residue or collected solder waste (dross) in line with local metal recycling or hazardous waste regulations, as it contains metals and chemical residues. Do not dispose of the product with mixed waste.
