Technical | Methods of Coating | Drying Oil
| Process | Rarely found (now), this system is where the term "oil based" really comes from. Oils such as Linseed carry a pigment which becomes the coating as the oil "dries" (actually reacts with oxygen, or moisture to harden). |
| Strengths | Cheap, but now superseded by more modern coatings. |
| Weaknesses | Tendency to become brittle and crack. |
| Durability | 3-5 years |
| Cost | £8 sq m |
| Health and Safety | Standard site issues |
| Environmental | Standard site issues, plus oil based issues. |
