What is Chipping ? Tools, Precautions & Protection
⚓ What is Chipping (in Ships & Marine Industry)?
Chipping is the process of removing rust, old paint, scale, or corrosion from metal surfaces using manual or powered tools before painting or maintenance.
In ships, chipping is commonly done on:
- Deck areas
- Hatch covers
- Bulwarks
- Superstructure
- Cargo holds
- Engine room structures
It is an essential part of ship maintenance to prevent corrosion and maintain structural strength.
🔧 Tools Used for Chipping
1️⃣ Manual Tools
- Chipping Hammer – For removing loose rust and scale
- Scraper – To remove flaking paint
- Wire Brush – For cleaning surface after chipping
- Hand Scaling Hammer – Heavy-duty rust removal
✅ Used for small areas and detailed work.
2️⃣ Power Tools
- Pneumatic Needle Gun (Needle Scaler) – Most common on ships
- Electric Chipping Hammer
- Angle Grinder with Wire Wheel
- Power Wire Brush
✅ Used for large surface areas and heavy corrosion.
⚠️ Precautions During Chipping
- ✔ Obtain Work Permit (if required onboard).
- ✔ Inform duty officer before starting work.
- ✔ Ensure area is well ventilated.
- ✔ Check for nearby cables, pipelines, or fuel lines.
- ✔ Never chip near flammable substances.
- ✔ Use proper staging or scaffolding for height work.
- ✔ Secure tools properly to prevent falling.
- ✔ Avoid working alone in confined spaces.
- ✔ Stop work in case of sparks near fuel vapors.
- ✔ Maintain proper body posture to avoid fatigue.
🛡️ Personal Protective Equipment (PPE)
Mandatory PPE includes:
- 🪖 Safety Helmet
- 👓 Safety Goggles / Face Shield
- 😷 Dust Mask or Respirator
- 🎧 Ear Protection (very important with needle gun)
- 🧤 Safety Gloves
- 👢 Safety Shoes
- 🦺 Boiler Suit / Coverall
- 🪢 Safety Harness (if working at height)
🚢 Why Chipping is Important in Ships
- Prevents corrosion
- Increases ship’s structural life
- Prepares surface for painting
- Maintains vessel appearance
- Helps pass inspections (PSC/Class)
Poor chipping leads to:
❌ Rapid rusting
❌ Steel wastage
❌ Structural weakness
📌 Simple Definition (Exam Answer)
Chipping is the process of removing rust, scale, and old paint from metal surfaces using manual or power tools before painting, to prevent corrosion and maintain structural strength.