What materials cannot be used with silicone slip topcoat?
silicone slip topcoat is mainly designed for silicone products and is usually not suitable for the following materials:
Metal materials: The surface properties of metal are quite different from those of silicone. silicone slip topcoat cannot form good adhesion on the metal surface, and it is easy to fall off and peel, and it cannot play its role in improving the feel. Moreover, metals usually have good electrical conductivity and thermal conductivity, while the insulation and thermal conductivity of silicone slip topcoats do not match those of metals. After coating, it may affect the normal functions of metal parts, such as electrical connection and heat dissipation.
Ordinary plastics: Non-polar plastics, such as polyethylene and polypropylene, have low surface energy and poor compatibility with silicone slip topcoat, which makes it difficult for the feel oil to adhere firmly to its surface and cannot achieve a lasting feel improvement effect. In addition, different plastics have different physical properties such as hardness and heat resistance. silicone slip topcoat may not be able to adapt to the characteristics of these plastics, and it is easy to wear, discolor, and have other problems during use.
Rubber: Nitrile rubber: Nitrile rubber has strong polarity, and its molecular structure is different from that of silicone. Silicone hand oil is difficult to form a stable coating on the surface of nitrile rubber and cannot provide good hand feel and wear resistance. Nitrile rubber is mainly used in oil resistance, wear resistance, and other fields. Its own performance characteristics determine that it has good tolerance to oil and other media, but silicone hand oil may affect its oil resistance, wear resistance, and other properties. Natural rubber: Natural rubber contains more unsaturated double bonds in the molecular chain, and its chemical activity is high. It may react chemically with the components in silicone hand oil, thereby affecting the performance of hand oil and the quality of rubber products. Moreover, the aging resistance of natural rubber is relatively poor, and silicone hand oil may not effectively improve its aging problem and may even accelerate its aging process. Fluororubber: Fluororubber has excellent high-temperature resistance, oil resistance, chemical corrosion resistance, and other properties, but its surface properties are special. Silicone hand oil cannot form an effective adhesion and lubrication film on the surface of fluororubber and cannot meet the requirements of fluororubber products for high-performance protection and hand feel. Glass: The surface of glass is smooth and hard, and silicone oil is difficult to form a strong bond on its surface and is easily wiped or worn off. In addition, glass has a high degree of transparency, and silicone oil may affect the transparency and optical properties of glass, making it blurry or dull, thus affecting the appearance and use of glass products.
Ceramics: The surface hardness of ceramic materials is high, and the porosity is low. Silicone oil is difficult to penetrate and adhere to its surface, and it cannot form a uniform and stable coating. Moreover, ceramics usually have good high-temperature resistance, while silicone oil may decompose and discolor at high temperatures, which cannot meet the use requirements of ceramic products in high-temperature environments.
