The answer depends on the type of resin. Some resins, like epoxy resin, are thermosetting and do not soften in the sun. They cure into a hard, rigid material that resists heat and UV exposure.
However, other resins, like polyester resin, are thermoplastic, meaning they can soften and become more pliable when heated. Sunlight can heat these resins, making them more susceptible to deformation.
Here are some examples of how different resins react to sunlight:
- Epoxy Resin: Remains hard and rigid even under prolonged sun exposure.
- Polyester Resin: Can become soft and pliable in direct sunlight, especially if it's a thin layer.
- Acrylic Resin: Generally resistant to UV light but can become brittle over time with prolonged exposure.
Therefore, the answer to whether resin gets soft in the sun is not a simple yes or no. It depends on the specific type of resin and its properties.