Paints and Pigments
- Created by: Caitlin Ward
- Created on: 11-04-14 15:54
View mindmap
- Paints and Pigments
- Why do we paint things?
- Make them look good
- To provide a protection for rust
- What is paint made of?
- Solvent - makes it spreadable
- Pigment - colour
- Binding medium to make it stick
- Colloids
- When a substance is evenly dispersed in another
- Paint particles do not settle because they are small
- Types of Paint:
- Matt
- Silk
- Oil based
- Water based
- Changes the solvent
- Oil based
- Changes the solvent
- Thermochromic (Colour change)
- Changing the pigment
- Phosphorescent (Glow in the dark)
- Changing the pigment
- Phosphorescent (Glow in the dark)
- Emulsion
- (Water based) The solvent is water
- Solvent evaporates which leaves the bonding medium and pigment left where it is painted
- Gloss
- (Oil based) Solvent is oil
- Solvent evaporates but oxygen is needed to oxidise the paint
- Thermochromic pigment
- Changes colour or goes transparent
- Can add to acrylic paint to make more colours
- Used in thermometres, baby spoons, mugs.
- Phosphorescent pigment
- Glow in the dark
- Absorbs light energy and stores it
- Emits light energy slowly so it glows
- Used in stars, clocks and safety signs
- Why do we paint things?
Comments
No comments have yet been made