Hi. How well does the silicone grease in your elevator work, and for how long? I'm planning to put a hoist in my house on the second floor and am looking on the web for companies like https://hinchong.com/lift-maintenance-singapore/ as a contractor. I wouldn't want to see graphite grease anywhere in the house, so I'm counting on silicone. Knowing how the gears work, I think any fence may allow fat to get in and out. I understand that these companies are supposed to do maintenance on the equipment, but things happen in operation.