of This Old House magazine. "We use it every day. Overhead doors open and close quietly. No rust on roller chains for power gates. Metal drawer slides, aluminum sliding windows. I'm..., OK "I use it on an outdoor manual freight elevator every month. It doesn't attract dust.It protects against rust and it's a safe product for a refinery in Texas where we have... be applied to any wood or metal. When used on metal parts it prevents rust and oxidation. When brushed on wood it seals the wood and prevents moisture absorption. I would not hesitate...