Bronze-toned stainless delivers the warm patina architects want for stone and water-adjacent landscapes — without the rust runoff that stains marble, travertine, and pool coping.
| Finish | Base Material | Runoff Risk |
|---|
| Bronze PVD | 304 Stainless Steel | None — inert surface, zero leaching |
| Gold or Black PVD | 304 Stainless Steel | None — no interaction with stone |
| 316L Bronze PVD | Marine-grade 316L | None — recommended for direct pool or fountain contact |
| Corten (weathering steel) | Carbon steel alloy | High — iron oxide stains marble and concrete |
Why this matters for landscape-adjacent installs:
Architects ask for the Corten aesthetic without the Corten problem. Corten patinas to a warm rust-brown that pairs beautifully with stone — until the first heavy rain washes iron oxide onto Italian marble, travertine coping, and poured concrete. The stain is permanent without chemical treatment.
Bronze PVD on 304 stainless delivers the same warm patina with zero runoff risk. The PVD layer is a vapor-deposited titanium-bronze ceramic surface — inert, with no free iron to oxidize. The aesthetic stays; the runoff goes to zero.
Proven on the Shanghai Heritage Estate — 950 sqm Bronze PVD screens installed fountain-side against Italian marble. Two years in: zero staining, zero color shift on either surface. Pool-adjacent installs upgrade to 316L for chlorine chemistry.
Share your stone type, water proximity, and target finish direction — your engineer matches the exact PVD color to your palette and confirms the right grade for zero runoff.