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What is the purpose of making ceramics waterproof?

  1. To enhance mold release

  2. To increase weight

  3. To allow for decoration

  4. To make the surface more durable

The correct answer is: To make the surface more durable

Making ceramics waterproof serves multiple purposes, but primarily, it enhances the durability of the ceramic piece. When ceramics are waterproof, they are better protected against moisture, which can lead to damage such as cracking, warping, or the growth of mold. This treatment helps to maintain the integrity and longevity of the ceramic, especially when used for functional items like dishware or outdoor pottery that may be exposed to rain or humidity. Although enhancing mold release and allowing for decoration can be considered benefits of waterproofing, they do not encapsulate the broader and more critical purpose of safeguarding the ceramic’s physical state over time. Increasing weight is typically not a desired effect of waterproofing, as the focus is generally on maintaining or enhancing the usability and aesthetics of the ceramic while ensuring it remains resilient against environmental factors.