Sterling Lead-Free Solder Manufacturer

Trusted by professionals for clean, safe, and reliable plumbing work, Sterling Solder sets the standard in lead-free performance.

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What You Need To Know About Sterling Solder Company

We specialize in providing high-performance, lead-free solder solutions for plumbing and industrial applications. Our products, including the trusted Sterling Solder line, meet or exceed industry standards such as ASTM B32 and NSF/ANSI certifications. With a strong commitment to safety and sustainability, we ensure our solders are not only effective but also environmentally responsible. Our team is dedicated to supporting professionals with reliable products and expert guidance. Whether you’re working on residential plumbing or commercial installations, you can count on us for consistent quality and dependable performance.

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Our Most Popular Sterling Solder Products

Explore our best-selling Sterling Solder solutions—engineered for clean, strong, and safe connections in every application.

Sterling Silver Solder

Perfect for precision work, this high-quality silver solder delivers smooth flow and strong, clean joints for jewelry and fine metalwork.

Sterling Lead-Free Solder

Made for safe potable water systems, this reliable tin-copper alloy ensures strong bonds without the hazards of lead.

Sterling Solder Roll

Conveniently packaged for professionals, our solder roll offers a continuous, mess-free supply for efficient, high-volume projects.

Sterling Solder Paste

Ideal for tight or complex joints, this flux-infused paste provides consistent application and excellent wetting action.

Sterling Plumbing Solder

Formulated specifically for plumbing, this solder provides fast-flowing, watertight seals that meet all major safety standards.

Sterling Soldering Kit

All-in-one and ready to go, this complete kit equips you with everything needed for professional-quality soldering jobs.

Built on Integrity, Driven by Quality

At the heart of our company is a commitment to doing things right—every product, every time. We value safety above all, ensuring our solders meet the highest standards for health and environmental responsibility. Quality is non-negotiable, which is why professionals trust our name on job sites and in workshops alike. Innovation keeps us moving forward, as we constantly improve our formulas and tools to meet modern demands. We believe in honesty, clear communication, and standing behind what we sell. Most importantly, we value the people who use our products—because your success is our mission.

Why Professionals Choose Sterling Solder

Our products are designed to deliver strong, reliable bonds with every use—whether you’re working on plumbing, electronics, or fine metalwork. We use only premium, lead-free materials that ensure safety, durability, and compliance with industry standards. Trusted by tradespeople and artisans alike, Sterling Solder products consistently outperform the competition.

Here’s what sets our products apart from the rest:

Lead-Free & Safe

Certified for use in potable water systems and environmentally responsible.

Precision Flow

Optimized melting points for smooth, even distribution and cleaner joints.

Versatile Applications

Perfect for plumbing, jewelry, HVAC, and general metalwork.

Pro-Grade Performance

Backed by industry certifications like ASTM B32, NSF/ANSI 61 & 372.

Sterling Solder Reviews

Real Users. Real Results. Here’s What Professionals Are Saying About Sterling Solder.

I've been soldering copper pipe for over two decades, and switching to Sterling Lead-Free Solder was one of the best decisions I’ve made for my business. I’ve used dozens of brands over the years, but Sterling flows cleaner and faster than anything else I’ve tried. It hits that perfect sweet spot in temperature—doesn’t overheat, doesn’t clump, and gives me consistent, shiny joints every single time. What really impressed me was how well it worked with potable water systems—my inspections have been flawless since switching. Clients love knowing it’s lead-free and NSF certified, and I love that I can trust the joint integrity without second guessing. Whether I’m sweating a full house or doing a quick repair, Sterling’s solder rolls and plumbing sticks have become a staple in my truck.

James Callahan

Master Plumber, Oregon

When it comes to HVAC installations, every joint has to be airtight and tough under pressure—and Sterling Solder hasn’t let me down once. I started with the Sterling Solder Paste, and immediately noticed how evenly it spreads and how fast it wets the surfaces. I use it with both copper and brass fittings, and the bond holds solid through temperature swings and high-pressure cycles. I’ve even tested joints under stress before closing panels, and the results speak for themselves—no leaks, no cracks, no callbacks. What I appreciate most is the reliability; I don't need to guess whether it’ll perform in tight spaces or awkward angles. It just works. The paste and roll combo has completely changed how quickly I can finish a job without sacrificing quality.

Leroy Hutchins

HVAC Technician, Florida

As someone who creates detailed silver jewelry pieces by hand, the quality of solder I use is absolutely critical. I started using Sterling Silver Solder strips about a year ago, and I haven’t looked back. The flow is so smooth—it allows me to work on delicate connections without overpowering the surrounding metal, especially when I’m joining fine bezels or layered elements. The variety of melting grades—Extra Easy to Hard—gives me precise control over the sequence of joins, which is essential for multi-step fabrication. Plus, knowing it’s made from 100% recycled silver aligns perfectly with the eco-conscious values I try to uphold in my studio. I’ve completed over 200 pieces with Sterling’s solder, and every joint is still holding strong with a clean finish that doesn’t require heavy polishing. It’s simply the best solder I’ve used in my 15 years as an artist.

Donna McKnight

Jewelry Artist & Metalsmith, New Mexico

Frequently Asked Questions

What is Sterling Solder used for?

Sterling Solder is primarily used for plumbing, HVAC, and metalwork applications where strong, clean, and lead-free joints are required. It’s ideal for use in potable water systems, electronics, and even jewelry-making depending on the alloy type.

Is Sterling Solder safe for drinking water lines?

Yes, most Sterling Solder products are certified under NSF/ANSI 61 and 372 for use in potable water systems. They are lead-free and compliant with the U.S. Safe Drinking Water Act.

What is the melting point of Sterling Solder?

The melting point depends on the specific formulation. For the commonly used tin-copper alloy, the solidus begins around 419°F (215°C) and the liquidus reaches approximately 660°F (350°C). Always refer to the product’s technical sheet for exact specifications.

What is Sterling Solder 95/5 used for?

Sterling Solder 95/5 is a high-tin solder alloy (95% tin, 5% antimony) used in applications requiring higher strength and temperature resistance, such as refrigeration lines and industrial plumbing. It’s especially useful for joints that undergo vibration or high pressure.

How do I use Sterling Solder correctly?

Start by cleaning and deburring your pipes or metal surfaces, then apply flux. Use a proper heat source like a propane or MAP-Pro torch to bring the joint to the soldering temperature, and apply the solder for a clean, secure bond. Ventilation and PPE are strongly recommended during use.

What’s the difference between Sterling Solder wire, paste, and strips?

Sterling Solder wire is ideal for standard plumbing and electrical work, while paste includes built-in flux for easier application in tight or intricate areas. Strips are often used in jewelry-making and precision work, offering flexibility in melting points and clean results.

Can Sterling Solder be used for electronics?

Some Sterling Solder formulations can be used for electronics if they have the appropriate composition and melting point. However, it’s important to verify compatibility, as plumbing solders may be too aggressive for sensitive circuit boards.

How should I store Sterling Solder products?

Keep them in a cool, dry place away from direct sunlight or moisture. For paste products, ensure the container is tightly sealed to prevent drying out or contamination.

Do I need to use flux with Sterling Solder?

Yes, unless you’re using solder paste that includes flux. For all other forms, flux is necessary to promote proper wetting and bonding and to prevent oxidation during the soldering process.

Where can I buy Sterling Solder?

Sterling Solder is available through professional plumbing and HVAC supply distributors, hardware stores, and trusted online retailers. Be sure to purchase from authorized sources to ensure product authenticity and certification compliance.