NASCO’s 97/3 Solid Solder Wire is a trusted solution for copper pipe and plumbing applications. Specially formulated for clean, strong, and safe copper joining, this solder wire contains 97% tin and 3% copper, completely lead-free and fully SANAS approved.
Whether you're a professional plumber or a maintenance technician, our 97/3 solder wire delivers consistent flow, excellent wetting, and durable joints, all while meeting international safety standards.
Lead-Free Composition: 97% tin / 3% copper – safe for drinking water systems
SANAS Approved: Meets South African safety and compliance standards
High-Quality Solid Core: No flux inside – pair with appropriate plumbing flux for optimal results
Ideal for Copper Fittings: Designed specifically for copper-to-copper soldering
Consistent Performance: Smooth flow, minimal spatter, strong mechanical bond
Wire Gauges:
0.71 mm
1.6 mm
2.0 mm (Recommended for plumbing use)
3.0 mm
Roll Weights:
250g
500g
Custom sizes available on request.
Copper plumbing installations
Domestic water supply systems
General copper tube soldering
Maintenance and repair of copper fittings
NASCO has over 80 years of experience in manufacturing high-purity solder products in South Africa. Our lead-free plumbing solder wire ensures peace of mind, long-lasting performance, and adherence to health and safety requirements.