1. © Pearson Education Limited, 2008. Copying permitted for the purchasing institution only. This material is not copyright free. Painting and Decorating NVQ and Technical Certificate Level 2, 2nd Edition To protect – stops steel corroding, timber rotting To decorate – improves appearance, special effects To sanitise – more hygienic, easier to clean To identify – pipework and other items Why apply coatings?

2. © Pearson Education Limited, 2008. Copying permitted for the purchasing institution only. This material is not copyright free. Painting and Decorating NVQ and Technical Certificate Level 2, 2nd Edition Paint is either water-based or solvent-based. It consists of three parts: thinner binder pigment. Paint

3. © Pearson Education Limited, 2008. Copying permitted for the purchasing institution only. This material is not copyright free. Painting and Decorating NVQ and Technical Certificate Level 2, 2nd Edition Evaporation – the water/solvent component evaporates Oxidation – the paint reacts with oxygen in the air Coalescence – binder particles fuse together into a film How does paint dry?

4. © Pearson Education Limited, 2008. Copying permitted for the purchasing institution only. This material is not copyright free. Painting and Decorating NVQ and Technical Certificate Level 2, 2nd Edition Mixing a two-pack coating Always follow the manufacturer’s recommendations use the correct ratio of base to hardener be aware of the mixture’s pot life. What does the term ‘pot life’ mean?

5. © Pearson Education Limited, 2008. Copying permitted for the purchasing institution only. This material is not copyright free. Painting and Decorating NVQ and Technical Certificate Level 2, 2nd Edition Surface coating defects