Is repainting of the entire wall necessary for hairline cracks?

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Hairline cracks are something that not many walls or ceilings can usually escape. To fix hairline cracks, you can either hire a professional who can do it for your very easily or you may choose to do it yourself.

With some filling materials (used to fill the cracks) such as putty, a simple tool (like an old knife) and a scraping tool, "fill" the crack with a “filling solution” and ensure that the filling material adequately transverses in to the insides of the crack. Flatten the surface and allow the crack to dry out for a day or so. Seal the crack using resin materials or drywall tapes. Once sealed, you can cover it up with some fresh paint to match your wall. You may consider using Nippon Paint 3-in-1 Medifresh as it is known for its ability to cover hairline cracks.

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