Case 1
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- Introduction
- Causes of Defects
- Good Practices
- Standards
- Maintenance and Diagnostics
- Remedial
- Similar Cases
- References
Cause of Defects
The crazing of paint is the result of differential movement of plaster and paint film. Such movements does not allow the paint film to move together with the plaster. Thus, excessive tensile stress results in the crazing effect.
Possible causes of crazing include:
- Excessive Shrinkage of the plaster layer.
- Poor surface curing.
- Improper surface preparation (wetting) before plastering.
- Incorrect mix proportion of the plaster mix.
There are similar cases where crazing of the paint is related to water seepage. For more information on paint crazing due to moisture, please refer to Paint Blistering, Peeling & Flaking.