UV radiation degrades epoxy by breaking down its polymer chains, leading to a loss of physical and mechanical properties. Epoxy resins are susceptible to UV damage because their molecular structure contains carbon-carbon bonds, which can be disrupted by high-energy UV light. This disruption manifests as color changes, chalking, and embrittlement, which reduce the material's structural integrity and aesthetic appeal. To mitigate UV degradation, epoxy can be protected with UV-absorbing additives or coatings that shield the epoxy from direct exposure to sunlight. Thus, understanding the impact of UV light on epoxy is crucial for applications where exposure to sunlight is anticipated, ensuring longevity and performance through appropriate protective measures.

Inking sketches involves transferring pencil outlines into bold, clean lines using ink. First, gather your materials: a sketch, ink (either bottled or in a pen), brushes or technical pens, and sometimes a lightbox. Start by laying down the basic shapes and forms with light strokes to avoid mistakes. Once you're confident, apply bolder and more confident lines. For fine details, use smaller brushes or finer nibs. When inking, ensure consistency in line thickness unless you aim for a stylized look. Remember to let each section dry before adding more ink nearby to prevent smudging. Erase any pencil marks after the ink dries completely to finalize your artwork.

Creating resin mold dice involves several steps. Firstly, select a silicone mold specifically designed for dice; these come in various shapes and sizes. Begin by preparing your casting resin according to the manufacturer's instructions, usually involving mixing a resin and hardener. Optionally, add colorants, glitter, or small objects into the mix for customization. Carefully pour the resin into the mold, ensuring all sides are filled. To remove air bubbles, which can mar the appearance of your dice, gently tap the mold or use a toothpick to coax them out. Let the resin cure as per the resin’s guidelines - this can take anywhere from a few hours to a day. Once fully cured, gently remove the dice from the mold. You may need to sand any rough edges for a smooth finish. Applying a polishing compound can also enhance the dice’s shine. With practice, you can create customized dice suitable for gaming or as unique gifts.

Creating resin mold dice involves several steps. Firstly, select a silicone mold specifically designed for dice; these come in various shapes and sizes. Begin by preparing your casting resin according to the manufacturer's instructions, usually involving mixing a resin and hardener. Optionally, add colorants, glitter, or small objects into the mix for customization. Carefully pour the resin into the mold, ensuring all sides are filled. To remove air bubbles, which can mar the appearance of your dice, gently tap the mold or use a toothpick to coax them out. Let the resin cure as per the resin’s guidelines - this can take anywhere from a few hours to a day. Once fully cured, gently remove the dice from the mold. You may need to sand any rough edges for a smooth finish. Applying a polishing compound can also enhance the dice’s shine. With practice, you can create customized dice suitable for gaming or as unique gifts.