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Wholesale silicone rubber for shoe soles price introduces the reasons for dark marks on silicone rubber products
Release time:
2022-07-22 08:28
Do you know what is the cause of dark marks on silicone rubber products? Today, the Wholesale silicone rubber for shoe soles price editor will take you to a brief understanding.
1. Too high molding temperature or unreasonable discharge method will also cause inconsistent surface color of silicone rubber products: unreasonable discharge method will also cause bad dark marks, usually manifested as excessively thick or narrow rubber cutting; When the temperature resistance range of the color masterbatch is exceeded, the color masterbatch will be discolored and dark marks will be formed.
Second, the temperature resistance of the color masterbatch is too poor, resulting in water ripples on the surface of the silicone rubber product. The color of the rubber compound that is prone to dark marks during molding is made up of two or more color masterbatches. If the temperature resistance of several color masterbatches is too different, this will result in some color masterbatches not having the same color during high temperature molding. Discoloration, and some color masterbatches are discolored due to poor temperature resistance, resulting in water ripples on the surface of silicone rubber products after molding.
3. Different batches of rubber materials are mixed together to form, resulting in inconsistent surface color of silicone rubber products. Compounds with the same formula have differences, such as differences in color and hardness. If these two batches of rubber compounds are mixed together and molded, the following situations will occur: the products with relatively large volume are easy to see two colors, and the products with smaller volume generally cannot see two colors.
The above is the introduction of Wholesale silicone rubber for shoe soles price: introduction to the reasons for dark marks on silicone rubber products.
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