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The answer lies in the type of cracks and the chosen primer. Primers, especially high-build varieties, can help camouflage and hide small cracks by filling them in, making the wall surface appear smoother. However, it is important to note that while primer can provide temporary cosmetic improvements, it may not fix the underlying structural issues causing the cracks.
Factors to Consider:
To determine the effectiveness of primer in hiding minute cracks on plastered walls, a few factors should be taken into account:
- Crack Size: The size of the cracks is an essential factor to consider. If the cracks are hairline or very shallow, primers, particularly high-build primers, can adequately fill them. Deep or wider cracks may require structural repairs before applying primer.
- Surface Preparation: Proper surface preparation is crucial for achieving the desired results. Before applying primer, it is important to clean the wall surface and remove any loose debris or paint chips. Additionally, it may be necessary to patch larger cracks or use joint compound to fill them before applying primer.
- Number of Coats: Applying multiple coats of high-quality primer can improve its ability to conceal minute cracks. Layering the primer allows for a smoother and more even finish, minimizing the visibility of the cracks.While primer can help conceal minute cracks on plastered walls to a certain extent, its efficacy depends on various factors. Types of primer, crack size, surface preparation, and the number of coats applied all contribute to the overall result. While primer can provide temporary cosmetic improvement, addressing and fixing the underlying structural issues causing the cracks is crucial for long-term solutions. Consulting a professional or structural engineer can help determine the best course of action for your specific situation.