Level 1 Diploma in Painting and Decorating

© 2013 City and Guilds of London Institute. All rights reserved. 1 of 5

PowerPoint presentation

Surface defects

Unit 117: Preparing surfaces for decoration

Level 1 Diploma in Painting and Decorating

© 2013 City and Guilds of London Institute. All rights reserved. 2 of 5

What causes surface defects?• Poor workmanship

• Inadequate tools, equipment and materials

• The environment

Level 1 Diploma in Painting and Decorating

© 2013 City and Guilds of London Institute. All rights reserved. 3 of 5

Identifying surface defects• Efflorescence

• Cissing

• Flaking

• Bittiness

• Runs, sags and curtains

• Mould

Which ones can you recognise?

Photo used with permission from Hobbico, Inc.

Level 1 Diploma in Painting and Decorating

© 2013 City and Guilds of London Institute. All rights reserved. 4 of 5

Rectifying surface defectsHow do you rectify the following surface defects?

• Effloresence

• Cissing

• Flaking

• Bittiness

• Runs

• Mould

Level 1 Diploma in Painting and Decorating

© 2013 City and Guilds of London Institute. All rights reserved. 5 of 5

Any questions?