Weller

Weller WSW SCN M1 Lead Free Solder Wire – 0.8 mm (0.039 in) – Sn99.3Cu0.6Ni0.05, 3.5% Flux, 100 g

High-performance tools and home improvement made for confident daily results

$33.13

3 shoppers currently have this item in cart.

Low stock: only 5 left in inventory. Add to cart before it's gone.

Shop Pay installment options may appear at checkout where eligible.

Free shipping Secure checkout 100% refund eligible
Bundle & save Buy 2 and save checkout time

Premium tools and home improvement quality selected for United States (USA) customers.

Routine pack Build your routine pack (3)

Fast dispatch with always-free shipping and secure checkout on every order.

Free shipping

i

Free shipping on every order. Fast dispatch, tracked delivery, and secure checkout included.

Easy returns

i

Simple return flow and responsive support for eligible items.

Peak-demand shipping delays

i

During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

24/7 customer support

Questions before checkout? Our team is available and ready to help.

Share

Why customers choose TaskHolt Tools

Overview

The Weller WSW SCN M1 solder wire is engineered for demanding hand and robotic soldering tasks. With a lead-free Sn99.3Cu0.6Ni0.05 alloy and a robust 3.5% flux core, it promotes steady flow, reliable coverage, and durable joints across a variety of surfaces and components.

Designed to support efficient workflows, this wire focuses on consistency and safety. The product leverages a patented Reduced Splash feature to help keep work areas cleaner while protecting operators during long sessions at the bench or in automated lines. A guaranteed 100% continuous flux core works in harmony with premium metals to minimize rework and to support clean, repeatable results.

Key Benefits

  • Performance & Productivity – Guaranteed, consistent flux delivery supports stable soldering during prolonged runs.
  • Quality Joints – The lead-free alloy and flux system enable long-term, crack-resistant joints on challenging surfaces.
  • Low Total Cost of Ownership – Reduced tip consumption and improved productivity help save labor time and resources over the life of the toolset.
  • Reduced Splash – The patented design minimizes splashes, enhancing workplace safety and cleanliness.
  • Flow + Heat Performance – Optimized alloy chemistry delivers dependable flow and heat transfer for consistent results.

Use Scenarios

  • Ideal for precision electronics assembly and repair tasks where clean, reliable joints are essential.
  • Suitable for mixed manual and automated soldering lines, helping to maintain throughput without compromising quality.
  • Effective on difficult surfaces where uniform wetting and strong adhesion are required.

Note: The benefits described reflect the product’s designed capabilities and typical performance in professional settings. Actual results may vary based on equipment, technique, and application conditions.

FAQ

Q: What makes the Weller WSW SCN M1 solder wire suitable for professional use?

A: It combines a 100% continuous flux core with a lead-free Sn99.3Cu0.6Ni0.05 alloy for clean, durable joints across manual and robotic soldering tasks.

Q: Can using this solder wire help reduce production costs?

A: Yes. Reduced tip consumption and smoother workflow can lower labor time and waste, contributing to a lower total cost of ownership.