The quest for superior tactile experiences in product design often leads manufacturers to explore advanced material treatments. For silicone products, achieving a desirable soft touch is a hallmark of quality, and this is expertly accomplished through specialized silicone soft touch coatings. NINGBO INNO PHARMCHEM CO.,LTD. provides these advanced coatings, along with the expertise to guide their successful application.

Applying a silicone soft touch coating effectively requires a methodical approach, ensuring each step contributes to the final product's quality. The process typically begins with thorough surface preparation. Silicone surfaces must be clean, free from oils, release agents, or any contaminants that could impede adhesion. Often, a secondary vulcanization step at a specific temperature (e.g., 150°C for 1-2 hours) is recommended to prepare the silicone substrate optimally.

The coating itself is usually a two-component system. This involves carefully measuring and mixing a silicone resin base with a catalyst (often a platinum-based compound). The correct dilution ratio with a suitable solvent, such as ethyl acetate, is crucial for achieving the right viscosity for spraying. A common recommendation is a 1:5 or 1:6 ratio of coating to thinner, followed by the addition of a small percentage (3-4%) of platinum catalyst. Thorough mixing is essential, and the prepared mixture is often filtered through a fine mesh (300-400 mesh) to remove any agglomerates or impurities, ensuring a smooth, defect-free finish.

Once the coating is prepared, the application method, typically spraying, must be controlled. Environmental conditions play a significant role; a dust-free environment with controlled temperature (20-30°C) and humidity (55-75%) is ideal. Too low a temperature can affect leveling and adhesion, while excessive humidity might lead to defects. After spraying, a brief resting period (2-5 minutes) in a dust-free environment is recommended before curing.

The curing stage is critical. For low-temperature hand-feeling oils, baking at around 120°C for 5-20 minutes is common. For coatings requiring higher durability and heat resistance, higher temperatures like 150°C or 180°C for shorter durations might be used. It's important to follow the specific curing guidelines for the product to achieve optimal hardness, adhesion, and the desired soft-touch finish. NINGBO INNO PHARMCHEM CO.,LTD. provides detailed technical data and support to ensure manufacturers can master this application process, delivering products with superior tactile qualities and durability.