The document discusses surface defects that can occur when preparing surfaces for decoration, including efflorescence, cissing, flaking, bittiness, runs, sags, curtains, and mold. It identifies the causes of surface defects as poor workmanship, inadequate tools and materials, and the environment. The document also explains how to recognize and rectify common surface defects.

1. Level 1 Diploma in Painting and Decorating
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PowerPoint
presentationSurface defects
Unit 117: Preparing surfaces for decoration

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What causes surface defects?
• Poor workmanship
• Inadequate tools, equipment and materials
• The environment

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Identifying surface defects
• Efflorescence
• Cissing
• Flaking
• Bittiness
• Runs, sags and curtains
• Mould
Which ones can you recognise?
Photo used with permission from
Hobbico, Inc.

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Rectifying surface defects
How do you rectify the following surface defects?
• Effloresence
• Cissing
• Flaking
• Bittiness
• Runs
• Mould

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Any questions?

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Any questions?