In today’s plumbing industry, lead-free solder has become the preferred—and often required—choice for copper pipe installations, especially in systems carrying drinking water. With growing awareness around health, safety, and environmental impact, using lead-free solder like NASCO’s 97/3 solid solder wire ensures compliance and long-term reliability.
Lead is a toxic metal, and even minimal exposure in water systems can pose serious health risks over time—especially in children and pregnant women. Using lead-free solder eliminates the risk of lead contamination in domestic or commercial water supplies.
Safe for potable water systems
Meets international and South African safety standards
Essential for residential and medical facility plumbing
In South Africa, plumbing materials used in water supply systems must meet strict health and safety regulations. NASCO’s 97/3 solder wire is SANAS approved, making it suitable for all plumbing work that demands regulatory compliance.
Recognised by local authorities and inspectors
Ensures your installations pass inspection
Minimises liability for installers and contractors
Despite the absence of lead, modern lead-free solders like NASCO’s 97% tin / 3% copper formulation offer exceptional bonding strength and reliability. They create clean, corrosion-resistant joints when applied correctly with compatible flux.
High melting point for secure bonds
Clean, smooth finish with minimal residue
Long-lasting performance under pressure
Lead-free solder is not only safer for people—it’s safer for the planet. Eliminating lead from your plumbing installations helps reduce harmful metal runoff and waste, contributing to a cleaner environment.
Reduces lead contamination in soil and groundwater
Supports sustainable construction and green building certifications
Plumbers across South Africa trust NASCO’s lead-free 97/3 solder wire for its reliable performance, easy handling, and availability in various sizes. It’s ideal for copper-to-copper joints and is especially recommended for use in sensitive water systems.
Gauges: 0.71 mm – 3.0 mm (2 mm ideal for plumbing)
Weights: 250 g & 500 g rolls
With over 80 years of experience in solder manufacturing, NASCO delivers high-quality soldering solutions tailored for the South African plumbing industry. Our lead-free 97/3 solid solder wire is the smart choice for safety, compliance, and performance.