Why Mechanical anchors are no chemical dependency？

Mechanical anchors are considered to have no chemical dependency in the sense that they do not rely on chemical reactions to create a secure attachment to the base material. Unlike adhesive anchors, which depend on chemical bonding to provide strength and stability, mechanical anchors achieve their grip through physical mechanisms. Here's why mechanical anchors are not chemically dependent:

1. Physical Interlock: Mechanical anchors create a physical interlock with the surrounding base material. For example, expansion anchors expand within a pre-drilled hole, generating friction and a mechanical grip. This grip is purely based on the physical interaction between the anchor and the material and does not involve chemical bonding.

2. Wedge Action: Wedge anchors are another type of mechanical anchor that uses a wedge-shaped component to create an expanding effect within the hole. This action generates pressure against the base material, creating a strong, mechanical connection without the need for adhesives or chemical reactions.

3. Threaded Fasteners: Many mechanical anchors, such as concrete screws, use threaded fasteners to secure objects to base materials. These threads engage with the material, providing a secure grip through mechanical forces. There are no chemical bonds involved in this process.

4. Resistance to Chemical Degradation: Mechanical anchors are typically made from materials that are resistant to chemical degradation. For example, stainless steel is commonly used due to its corrosion resistance, ensuring that the anchor's physical properties remain intact over time, even in harsh environments.

5. No Cure Time: Unlike adhesive anchors, which often require a curing time for the adhesive to set and develop its full strength, mechanical anchors provide immediate strength upon installation. This eliminates the need for waiting periods and allows for faster construction processes.

6. Environmental Independence: Mechanical anchors are less sensitive to environmental factors, such as temperature and humidity, compared to adhesive anchors. Adhesives can be affected by temperature variations or moisture, potentially compromising their performance. Mechanical anchors, on the other hand, do not rely on chemical processes that can be influenced by environmental conditions.

7. Long-Term Stability: Mechanical anchors maintain their performance and stability over the long term without the degradation that can occur with certain chemical adhesives.