Apply Vinegar to Metal to Prevent Cracking
Although metal is very durable, it is susceptible to corrosion and rust. For this reason, it is important to paint metal, especially when using it for outdoor use. Although painting metal helps prevent decay and rusting, it tends to crack, exposing the metal to more damage. Before painting metal, it helps to apply a solution of water and vinegar to help prevent cracking and keeps the paint looking fresh for years.
Vinegar has acidic qualities that clean and degrease the surface and allow the paint to adhere. You need to apply a solution of one part water and five parts vinegar to the metal, making it less likely to crack or peel. Consequently, this helps the paint stick on the metal surface so that it can serve you for long. Just ensure that the vinegar dries completely before applying paint.