Once opened, gesso can last for several years if stored properly in a cool, dry place with the lid tightly sealed. However, over time, gesso may thicken or develop a skin on the surface. To extend its shelf life, you can add a small amount of water and mix well to restore its original consistency. It's always a good idea to perform a patch test before using older gesso to ensure it still provides the desired results. **

Once opened, gesso is generally durable for several years if stored properly in a sealed container and kept away from extreme temperatures. However, its durability can vary depending on the quality of the gesso and how it is stored. It is important to check for any signs of deterioration, such as a change in texture or odor, before using gesso that has been opened for an extended period of time. **

Without gesso or a basic primer, the oil paint will not adhere properly to the surface of the canvas. This can result in the paint not spreading evenly, appearing dull, or flaking off over time. Gesso or a basic primer is essential as it creates a smooth and absorbent surface for the oil paint to adhere to, allowing for better color vibrancy and longevity of the artwork. **

Without gesso or a basic primer, the oil paint will not adhere properly to the surface of the canvas. This can result in the paint not spreading evenly, absorbing into the canvas, or flaking off over time. Gesso or a primer is essential for creating a smooth and stable surface for the oil paint to adhere to, ensuring the longevity and quality of the artwork. **

No, you should not use tinting paint wall paint white lime as gesso. Gesso is specifically formulated to create a smooth, absorbent surface for painting, while tinting paint wall paint white lime is designed for use as a wall paint. Gesso has a different texture and composition that allows it to properly prepare a surface for painting, so it is best to use gesso specifically made for that purpose. Using wall paint as a substitute for gesso may not provide the same quality surface for painting. **

It is recommended to apply gesso as a primer for oil painting before starting a new painting. Typically, one or two coats of gesso are sufficient to create a smooth and stable surface for the oil paint to adhere to. However, the number of coats may vary depending on the absorbency of the surface and the desired texture. It is important to allow each coat to dry completely before applying the next one. **

A wood lathe is specifically designed for working with wood, while a metal lathe is designed for working with metal. Wood lathes typically have lower speed ranges and higher torque to accommodate the softer and less dense nature of wood, while metal lathes have higher speed ranges and lower torque to handle the harder and denser nature of metal. Additionally, wood lathes often have features such as adjustable tool rests and tailstocks to accommodate the unique shapes and sizes of wood pieces, while metal lathes may have features such as coolant systems and chip trays to manage the heat and debris generated during metalworking. **

While both precision mechanics and machining involve working with tools to create precise components, they are not exactly the same. Precision mechanics typically focuses on creating intricate and delicate components with high accuracy, often used in industries like watchmaking or electronics. Machining, on the other hand, involves using various tools to shape and cut raw materials into specific shapes and sizes, commonly used in industries like automotive or aerospace. Both mechanics require attention to detail and precision, but they differ in their specific applications and techniques. **