Can glitter powder be added to silicone?

Can glitter powder be added to silicone?
The answer is yes, but it needs to be operated with caution and comprehensive consideration of many factors. The following is a specific analysis:
Process feasibility
Mixing and stirring: Whether it is solid mixed silicone or liquid silicone, there is an opportunity to add glitter powder during the processing. For mixed silicone, glitter powder can be fully mixed with silicone raw materials through open mixers, internal mixers and other equipment to make it evenly dispersed in the silicone matrix; liquid silicone can be added with glitter powder during the stirring process, and then continuously stirred to ensure uniform dispersion. However, glitter powder is light and easy to fly. Protective measures should be taken during the addition and stirring process to prevent it from floating around and affecting the operating environment and the addition effect.
Molding process adaptability: After adding glitter powder, the molding process of silicone may be affected to a certain extent. Glitter powder will change the fluidity and filling properties of silicone. For example, during compression molding, if too much is added, it may cause silicone to be difficult to smoothly fill the mold cavity, resulting in problems such as lack of material and uneven surface, affecting the molding quality of the product, so it is necessary to reasonably control the amount of glitter powder added according to the specific molding process.
Influence of performance
Stability considerations: Ensure that the glitter powder can remain stable during the long-term use of silicone. Under the influence of external environmental factors such as light, temperature changes, and contact with chemicals, poor-quality glitter powder may fade, discolor, etc., which will affect the appearance and overall performance of silicone products. Therefore, it is necessary to choose glitter powder with good quality and strong weather resistance.
Functional influence: Determine whether it is appropriate to add glitter powder according to the different uses of silicone products. If it is used for decorative silicone products, such as silicone crafts, holiday decorations, etc., adding glitter powder can enhance its beauty and ornamental value, and play a good decorative effect; but if it is used in food contact, medical and other fields with strict safety and functionality requirements, adding glitter powder is not appropriate, because it may bring potential health risks and does not meet relevant safety standards and use requirements.
Safety factors
Ingredient safety: The selected glitter powder must ensure that its ingredients are non-toxic and harmless, especially for some silicone products that may be in close contact with people, such as children's toys, daily necessities, etc. If glitter powder contains harmful ingredients such as toxic heavy metals, it will pose a risk to human health during use, so it is necessary to choose products that meet safety standards.