Replacement sealing lip materials
| Original | Replacement |
| Felt | Nitrile rubber |
| Polyacrylate elastomer | |
| Fluoro rubber | |
| Leather | Nitrile rubber |
| Fluoro rubber | |
| Nitrile | Polyacrylate elastomer |
| rubber | Fluoro rubber |
| Silicone rubber | |
| Polyacrylate | Fluoro rubber |
| elastomer | Silicone rubber |
| Silicone | Fluoro rubber |
| rubber |
