Dipping and Coating Operations

1
Dipping and Coating Operations
2
Processes that use dip tanks

• Paint dipping
• Electroplating
• Pickling
• Quenching

1a
3
Processes that use dip tanks

• Tanning
• Degreasing
• Stripping
• Cleaning

1b
4
Processes that use dip tanks

• Roll coating
• Flow coating
• Curtain coating

1c
5
Hazards of operation

• Open-surface tanks
• Splashing
• Dripping
• Spattering

2a
6
Hazards of operation

• Wet floors
• Mats
• Grating
• Slip-resistant footwear

2b
7
Hazards of operation

• Equipment failures
• Ventilation systems
• Toxic vapors
• Respirators

2c
8
Hazards of substances in open-tank processes

• Hazard communication is essential
• Material safety data sheets (MSDSs)
• By-products created by process itself

3a
9
Personal protective equipment

• Foot protection
• Gloves
• Aprons, coats, jackets, sleeves

4a
10
Personal protective equipment

• Garments impervious to liquids
• Chemical goggles
• Limitations of PPE

4b
11
Emergency procedures

• For air contaminant levels above desired levels
  or for oxygen levels below 19.5 percent
• Wear respirators to reduce exposure
• Respirator storage
• Respiratory standard 29 CFR 1910.134

5a
12
Emergencies involving tank entry

• Use respirators such as
• Self-contained breathing apparatus
• Supplied-air (mask with hose and blower)
• Air-purifying respirator
• Use PPE to protect against absorption of
  hazardous substances

6a
13
Emergencies involving tank entry

• Stand-by personnel outside tank
• Trained
• Has suitable respirator
• Able to communicate with employee in tank
• Rescue lifelines

6b
14
Summary of main points

• Hazards of operation
• Hazards of substances used
• Personal protective equipment
• Emergency procedures

7a