**Exothermic Powder: Overview & Applications**

**What is Exothermic Powder?**
Exothermic powder, also known as exothermic welding powder or thermite powder, is a mixture of metal oxides and reducing agents that, when ignited, undergo a high-temperature chemical reaction. This reaction produces molten metal that permanently bonds conductors such as copper, steel, or other metals.

**Composition**
Exothermic welding powder typically consists of:
- **Copper Oxide (CuO) or Aluminum Oxide** – Acts as an oxidizer.
- **Aluminum Powder (Al)** – Acts as a reducing agent.
- **Other Metal Additives** – Enhance conductivity and bonding strength.

**How It Works**
1. The exothermic powder is placed in a graphite mold.
2. A spark or ignition source (like a flint gun or electronic igniter) triggers the reaction.
3. The reaction generates an intense heat (up to 2,500°C or 4,500°F), melting the metal and fusing the conductors.
4. After cooling, a solid, corrosion-resistant joint is formed.

**Applications**
- **Earthing and Grounding** – Used to create strong electrical connections in grounding systems.
- **Lightning Protection** – Ensures reliable bonding in lightning arresters.
- **Railway Signaling & Tracks** – Bonds rails for electrical continuity.
- **Oil & Gas Pipelines** – Provides reliable grounding for cathodic protection.
- **Power Plants & Substations** – Used in high-voltage grounding systems.

**Advantages**
✔ **Permanent Connection** – Stronger than mechanical or bolted connections.
✔ **Corrosion-Resistant** – Ensures long-lasting durability.
✔ **High Conductivity** – Maintains low resistance over time.
✔ **No External Power Required** – Self-sustaining chemical reaction.

Since SG Earthing Electrode manufactures **exothermic welding powder**, do you need details on specifications, packaging, or a buying guide?