Solder Wicks

Solder wicks, also known as desoldering braids or solder removal braids, are used to remove excess solder when reworking a joint or removing a component. While soldering involves creating a joint, desoldering is the process of removing the melted joint to correct mistakes and perform repairs.

The process involves placing the wick onto the soldered area and applying a heated soldering iron tip, bringing the wick and soldered joint to melting point and activating the flux. The molten solder is then drawn up into the wick through capillary action, removing the solder. In turn, the wick is removed and the used section cut off, ensuring a clean finish for the next use.

Benefits of Using Quality Solder Wicks

• Efficient Solder Removal: Quality solder wicks rapidly remove excess solder via capillary action, reducing desoldering time and enabling clean, precise solder joint clearing.
• Minimised Thermal Stress: High-grade copper solder braids with optimised flux coatings transfer heat effectively to solder joints, allowing quicker solder melting with minimal heat exposure to components and PCB pads, helping to prevent damage.
• Flux Compatibility and Residue Management: Quality solder wicks come with specialised flux types (rosin, no-clean, unfluxed) that match your assembly process, ensuring solder flows easily and residues are either easy to clean or safe to leave, improving repair reliability.
• Wide Size Range for Versatility: From fine solder braids for delicate SMD pads to wider widths for bulk solder removal, good solder wicks cover diverse applications, providing precise control in tight spaces and effectiveness on large joints alike.
• Enhanced Reliability and Longevity: Premium solder wicks maintain capillarity and solder absorption without premature saturation, enabling multiple effective pulls per length before needing replacement.
• Improved Repair Quality: Using quality solder wicks helps achieve clean, flat, and contamination-free pads for better subsequent soldering, crucial for device functionality and longevity.
• Ease of Use for Professionals and Hobbyists: Quality soldering wick also helps to minimise user effort, reducing the risk of lifted pads or damaged traces during desoldering, and come wound and packaged to preserve performance and ease handling.

Types of Solder Removal Braids

By Flux Type

Desoldering wicks are available with a variety of solder flux types, enabling you to match your rework process with the original assembly. This helps to mitigate cleaning issues and ensures the integrity of the repaired joint.

• Rosin-Fluxed: Rosin fluxed desoldering wicks offer the fastest wicking action but leaves a sticky residue that requires thorough post-desoldering cleaning.
• No-Clean Fluxed: This type of flux leaves a clear, non-ionic residue after desoldering. It's a great option for repairs when cleaning is not practical or possible, such as in high-density circuits.
• Unfluxed: Unfluxed braids allow you to add your own flux. This is ideal in production or repair environments where the flux is specified and can't be changed, or when an aqueous flux is needed.

By Size

Desoldering braids also come in various sizes, with the width of the braid determining its suitability for different applications.

• Fine: Typically having a width of 0.8mm to 1.5mm, a fine solder remover wick is ideal for delicate work on small solder joints or surface-mount device (SMD) components.
• Medium: With a width of 1.5mm to 2.5mm, these desoldering wicks are a versatile, general-purpose choice. They are suitable for most through-hole components and standard desoldering tasks.
• Wide: These braids usually have a width of 2.5mm to 4.0mm, essential for removing solder from large joints, connectors, or ground planes.

Materials and Construction

Solder wicks are made of ultra-fine, oxygen-free copper strands braided tightly to maximise thermal conduction and solder absorption capacity. Flux coatings are carefully chosen to optimise heat transfer and solder removal efficiency while minimising the risk of damage to delicate PCB pads or components.

Some advanced solder wicks, such as lead-free varieties, are engineered explicitly for removing modern high-temperature lead-free solder alloys, requiring less heat and minimising thermal stress.

Applications of Solder Remover Wicks

Solder braids are indispensable for a wide range of desoldering applications, facilitating the removal of unwanted solder or the reworking of old solder joints.

The process is most often used to remove solder from printed circuit boards (PCBs) and other electronics, reworking ineffective joints, or taking apart electronic components that have been soldered together.

Electronics Maintenance

In electronics maintenance, solder remover wicks are vital for repairing and modifying circuit boards. They allow technicians to precisely remove faulty components and clear solder pads before installing new ones.

This process helps preserve the integrity of delicate PCBs, ensuring the repaired device functions reliably after rework.

Aerospace and Automotive Electronics

The aerospace and automotive industries rely on soldering wicks for critical electronic repairs. Technicians use desoldering tools to correct errors on circuit boards and to replace faulty components in control systems or instrument panels.

The precision offered by solder braids is essential for maintaining the high-reliability standards required in these fields.

Household Appliance Repair

Desolder wicks are invaluable tools for technicians and hobbyists repairing household appliances, such as radios, TVs, fans, and kitchen devices. They efficiently remove old solder, allowing for clean and new connections to be made, extending the life of the appliance.

DIY Electronics and Hobby Projects

DIY enthusiasts and hobbyists frequently use desolder wicks when working on electronics projects. It is an essential tool for correcting mistakes on Arduino, Raspberry Pi, and custom PCBs.

With a solder wick, they can quickly and cleanly remove solder bridges and excess material, ensuring circuits work as intended.

How to Choose the Right Solder Wick for Your Project

• Flux Type Compatibility: Select solder wick flux (rosin, no-clean, or unfluxed) based on your cleaning preferences and the original soldering process to ensure optimal solder removal and minimise residue.
• Appropriate Width Selection: Choose a solder wick with width close to the solder joint size. Fine widths (0.8–1.5 mm) fit small or dense SMD pads, medium (1.5–2.5 mm) for through-hole components, and wide (2.5–4.0 mm) for larger joints to optimise heat transfer and avoid damage.
• Solder Alloy Compatibility: Ensure the solder wick or braid suits your solder type. Lead-free solder wicks handle higher melting temperatures efficiently without causing thermal damage.
• Thermal Conductivity and Quality: High-quality, oxygen-free copper solder braids conduct heat better, leading to faster solder melting and reducing risk of lifted pads or damages.
• Packaging and Storage: Pick soldering wicks sealed in antistatic and moisture-resistant packaging to maintain their flux integrity and performance over time.
• Application Environment: For static-sensitive electronics, use ESD-safe solder wick to prevent charge buildup that can damage components.
• Ease of Use Features: Features like pre-fluxed braids, easy-to-cut lengths, and clear labelling enhance efficiency in both professional and DIY settings.

Your Trusted Partner and Supplier for Solder Wick and Braid Solutions

As a trusted supplier and distributor of solder wicks and braids, RS Singapore offers a comprehensive selection of these essential rework tools. We source our products from reputable brands like Chemtronics, Super Wick, Taiyo Denki, and CHIPQUIK, ensuring reliable and high-quality options for every application.

Beyond desoldering wicks, we also provide a wide array of other soldering supplies, including soldering wires and soldering machines, to meet all your project needs.

Browse our user-friendly online site to explore the full range and have your items shipped directly to your door. With our flexible and swift delivery options, we ensure you receive your products at your convenience.

For more details on delivery times and fees, please check our delivery information page.