A rain chain is not just a functional tool that guides rainwater. It is a piece of metal craftsmanship that enhances the scenery of everyday life. Since rain chains remain outdoors for years, constantly exposed to wind, light, and rain, the choice of material determines both their durability and beauty.
At Seo Rain Chain, we primarily use Stainless Steel (SUS304) and Copper (C1100). Each material uses its own characteristics to offer long-lasting performance and an aesthetic that enhances architectural beauty.
Allow us to explore the character of each metal and the reasons they have become the foundation of our craftsmanship.
Rain Chains Crafted from Stainless Steel (SUS304)
The stainless steel used in authentic Seo Rain Chain designs is known as SUS304, or 18-8 Stainless. This is an alloy of iron mixed with 18% chromium and 8% nickel. Chromium creates a protective layer that prevents rust, while nickel adds toughness. This gives the metal flexibility and ensures it resists cracking, providing long-term stability outdoors.
You likely see SUS304 often in daily life. It is used in water-related products like kitchen sinks, pots, and silverware. Because it resists rust, stays clean, and keeps a beautiful shine, it is perfect for rain chains exposed to rain, humidity, and sunlight.
At Seo Rain Chain, we apply a hairline finish to soften the reflection and highlight the metal’s texture. We also add a ceramic-based clear coating. This enhances resistance to weather and moisture, protecting the chain from UV rays. This preserves the metal’s natural beauty while ensuring a durable finish for years of worry-free use.
Rain Chains Crafted from Copper (C1100)
Copper is a timeless material for rain chain. At Seo Rain Chain, we use high-purity C1100 copper. This metal is 99.9 percent pure, which allows the surface to change naturally. It forms a protective layer called a patina. This layer shields the metal from damage and enhances its strength and beauty.
When we ship your chain, the copper has a reddish-brown glow. Over months and years, it deepens to a rich brown. Depending on where you live, it may eventually develop a soft green color. This transformation is not just aging—it is a sign that the metal is breathing in harmony with nature.
Copper is soft, so maintaining a perfect shape requires expert craftsmanship. We apply a hairline finish to the surface. This creates a calm texture and softens the light reflection.
As the rain chain changes with the seasons, it brings a quiet character to your building. Outside of Japan, similar items are often sold as "Bronze Rain Chains," but most are actually made of copper. Our pure C1100 copper naturally develops that rich bronze tone over time, highlighting the material’s lasting elegance.
Stainless Steel vs. Copper: Choosing the Right Material
Stainless steel rain chains naturally resist rust. They are perfect for modern homes with a sleek, polished look. On the other hand, copper rain chains develop character over time. This creates a warm and traditional atmosphere. Both materials offer excellent durability, but they act differently. If you want a look that stays bright and pristine, we recommend stainless steel. If you prefer beauty that deepens with time, copper is the ideal choice.
Choosing the Right Material for Your Rain Chain
At Seo Rain Chain, we believe a rain chain is more than just a tool to guide the rain. It is a feature that connects your architecture, nature, and everyday life. We select our materials not just for their appearance, but for how they change and endure through the years.
Stainless steel offers a clean, pristine beauty that stays bright. Copper, on the other hand, develops a beauty that deepens with time. Both are essential to our craft.
We hope you enjoy experiencing the strength and elegance of these metals as they live with the rain. We invite you to find the Seo Rain Chain made from the material that best suits your taste.
