**Calcium octoate** (also called **calcium 2-ethylhexanoate**) is a metal carboxylate derived from calcium and 2-ethylhexanoic acid. It is primarily used as an **additive** in various industrial processes. Here are its main uses:
# 1. **Paints and Coatings (Driers for Alkyd Resins)**
- Acts as a **siccative (drier)** in **alkyd-based paints**.
- It **accelerates the drying** of oils and resins by promoting oxidative crosslinking.
- Often used in combination with cobalt and zirconium driers to improve performance.
# 2. **Plastic Stabilizer**
- Functions as a **heat stabilizer** in **PVC** and other plastics.
- Prevents degradation of polymers at high temperatures.
# 3. **Lubric