When discussing the biggest difference between silicone leather and PU leather, we have to deeply analyze the differences between the two materials in terms of composition, production process, performance and environmental protection characteristics. Although these two materials belong to the category of simulated leather, their characteristics and application fields are very different. Let's analyze the significant differences between them in detail.
Composition and base materials:
First of all, in terms of composition, silicone leather uses baby pacifier-grade silicone material, which is known for its non-toxic, harmless and environmentally friendly properties. In the production process, silicone leather is often based on fabric and coated with 100% silicone polymer, which gives it more durable and environmentally friendly characteristics while maintaining the flexibility of the fabric. In contrast, PU leather (polyurethane leather) is a synthetic leather formed by coating polyurethane resin on fabric or other substrates. Although PU leather also has certain flexibility and durability, its basic materials and production process determine that it cannot be compared with silicone leather in some aspects.
Production process and environmental protection:
In terms of production process, the production process of silicone leather pays more attention to environmental protection. Due to the use of non-toxic silicone materials and the fact that no harmful chemical reagents are added during the production process, silicone leather has become synonymous with environmental protection in the leather market. This material not only reduces the emission of harmful substances during the production process, but also ensures the safety and health of users during use. In the production process of PU leather, since a variety of chemical additives need to be added to achieve the required physical properties and appearance effects, some harmful substances will inevitably be volatilized. Although the amount is not large, long-term use may still have a certain impact on the environment and human health.
Performance:
In terms of performance, silicone leather and PU leather have their own advantages, but silicone leather has shown superior performance in some aspects. For example, in terms of flame retardancy, the flame retardant effect of silicone leather is significantly higher than that of PU leather. This is mainly due to the high flame retardancy of the silicone material itself, which enables silicone leather to quickly self-extinguish when encountering a fire source, thereby effectively preventing the spread of fire. In addition, silicone leather also has excellent hydrolysis resistance, can maintain stable performance in harsh environments such as high humidity and high salt spray, and has a service life of about 10 years. In contrast, although PU leather also has certain hydrolysis resistance, its performance is often greatly reduced in extreme environments, and its service life is relatively short.
In terms of wear resistance and scratch resistance, silicone leather also performs well. Because its surface is coated with highly wear-resistant silicone polymer, silicone leather can easily cope with various frictions and scratches in daily life, maintaining a long-term appearance and performance. Although PU leather also has certain wear resistance, it may still be worn and scratched during long-term use, affecting the overall appearance and service life.