What materials do you recommend for a seaside landscape facility to prevent rust on benches and trashcans?

As someone who spends every day under the salty spray of the ocean, I—a humble seaside bench—have seen too many of my metal-bodied friends turn into crumbling orange messes within a year. But not me. I’m built to last. If you want your coastal landscape facilities like benches and trashcans to stand strong against the relentless sea breeze, listen to my story.

First, let’s talk about stainless steel. Grade 316 stainless steel is my favorite armor. Unlike its weaker cousin, grade 304, this alloy includes molybdenum, which makes it a champion against chloride corrosion. I’ve seen trashcans made of it shrug off saltwater splashes for decades without a single rust spot.

Next, consider powder-coated aluminum. Aluminum is naturally rust-proof because it forms a protective oxide layer. But the real magic is in the powder coating—a thick, baked-on finish that resists UV rays and salt deposits. I’ve had neighbors made of this material who still look brand new after ten stormy winters.

For a more sustainable twist, recycled high-density polyethylene (HDPE) is a star. It never rusts, never rots, and can be molded into beautiful textures mimicking wood or stone. One trashcan I know made of HDPE even survived a hurricane without a scratch.

Don’t forget galvanized steel with a marine-grade finish. Hot-dip galvanizing coats the steel in zinc, which sacrifices itself to prevent rust. Pair it with a marine-grade paint topcoat, and you get a tough, affordable option for budget-friendly projects.

Lastly, treat any material with proper drainage and airflow. Even the best metal can fail if the design traps moisture. Slotted seats and open-bottom cans let water escape and air circulate—a simple trick that doubles material lifespan.

So, when you choose materials for your seaside landscape, remember: stainless steel 316, powder-coated aluminum, and recycled HDPE are your loyal allies. I’ve lasted decades because of them. Your benches and trashcans can too, if you give them the right body.