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Surface defects
- 1. Level 1 Diploma in Painting and Decorating
© 2013 City and Guilds of London Institute. All rights reserved. 1 of 5
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presentationSurface defects
Unit 117: Preparing surfaces for decoration
- 2. 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
- 3. 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.
- 4. Level 1 Diploma in Painting and Decorating
© 2013 City and Guilds of London Institute. All rights reserved. 4 of 5
Rectifying surface defects
How do you rectify the following surface defects?
• Effloresence
• Cissing
• Flaking
• Bittiness
• Runs
• Mould
- 5. Level 1 Diploma in Painting and Decorating
© 2013 City and Guilds of London Institute. All rights reserved. 5 of 5
Any questions?
- 6. Level 1 Diploma in Painting and Decorating
© 2013 City and Guilds of London Institute. All rights reserved. 5 of 5
Any questions?