5.8 - Surface treatments and finishes

What is metal plating?

• Metal plating is a process where a layer of plastic is deposited onto a surface.
• Metal plating involves painting a surface with metallic colors.
• Metal plating is a technique used to grow plants on metal surfaces.
• Metal plating is a process where a thin layer of metal is deposited onto a surface to enhance its properties or appearance.

What material is a common electrical insulator and is used to coat electrical wire.

• Plastic
• Glass
• Metal
• PVC

Name an advantage of anodising.

• Increased corrosion resistance
• Reduced surface hardness
• Improved heat dissipation
• Decreased electrical conductivity

Name a disadvantage of anodising.

• Decreased brittleness
• Can scratch easily

• Enhanced durability
• Reduced corrosion resistance

Name an advantage of painting.

• Enhanced mathematical skills
• Increased physical fitness
• Improved cooking abilities
• Almost any colour available

Name a disadvantage of painting.

• Messy cleanup process
• Can fade over time

• Limited color choices
• Difficulty in achieving desired texture

Name an advantage of screen printing.

• Can paint complex designs over the surface

• High cost of equipment
• Inability to print intricate designs
• Limited color options

Name an disadvantage of screen printing.

• Full colour requires 4 separate screens

• Limited color options
• Not durable for outdoor use
• Suitable for only flat surfaces

What finish could you use for a plastic case of a cordless drill?

• galvanized
• chrome-plated
• Screen printing

• powder-coated

Which of the following materials can be anodised?

• Copper and its alloys
• Steel and its alloys
• Plastic
• Aluminum and its alloys