How To: Get that rusty look

We wanted our steel planters to have that nice rusty look that says, "I've been here for a long time, but I still look darn good." To do that, we had to find a way to create rust, but stop it from destroying the steel. Here's what we did:

How to Get the Rusty Look

1. Mix 1 part vinegar to 3 parts water in a garden sprayer.
2. Spray a heavy coat on the steel.
3. Let the steel get as rusty as you want.
4. Mix 1 part baking soda to 3 parts water.
5. Spray the steel to neutralize the vinegar. 
6. Hose down the steel with water to remove any lasting vinegar.
7. Let steel dry completely.
8. Coat the steel with polyurethane to keep it from rusting any more.