Good chemical resistance means that a material can endure prolonged exposure to a variety of chemicals without significant deterioration or loss of properties. Characteristics of good chemical resistance include:
- Durability: The material remains physically and chemically stable over time when exposed to chemicals.
- Minimal Swelling or Degradation: The material does not absorb chemicals or swell excessively, which can lead to loss of mechanical integrity.
- Retention of Mechanical Properties: The material retains its strength, flexibility, and other mechanical properties after chemical exposure.
- Low Permeability: The material does not allow chemicals to pass through easily, maintaining a barrier to protect underlying surfaces or structures.
Materials like certain grades of stainless steel, fluoropolymers (e.g., PTFE), and specialized coatings are known for their excellent chemical resistance, making them suitable for use in harsh chemical environments.