PU Coated Silicone Rubber keyboards

Description:

PU-coated silicone keypads, also referred to as PU-coated rubber keypads and keyboards, are specifically designed to enhance the abrasion resistance of screen-printed and laser-etched symbols (legends) and color coatings on the surface of silicone rubber keypads and buttons. Applying a PU coating is a widely used technique that not only extends the lifespan of silicone keypads but also provides a smooth, comfortable tactile experience.

In addition to PU coatings, other protective surface treatments for rubber keypad legends and symbols include matte smooth coatings, epoxy coatings, and the use of plastic keys and buttons, each offering distinct benefits in durability and appearance.

Characteristics:

Advantages of PU coating for silicone rubber keyboards:

1. Increased Durability

PU coating enhances wear resistance, extending the keyboard’s lifespan and preserving its appearance.

2. Aesthetic Versatility

It provides a smooth, glossy finish that can be customized in various colors, enhancing visual appeal.

3. Enhanced Tactility

The coating offers a soft, responsive feel, improving user interaction in high-usage scenarios.

4. Environmental Resistance

PU coating protects against moisture, chemicals, and UV exposure, ensuring durability in diverse conditions.

Production Process:

1. Silicone Keypad Cleaning: The silicone keypads are thoroughly cleaned using specialized washing equipment to remove any contaminants or residues.
2. Drying: The cleaned keypads are then dried through advanced drying machinery to ensure they are completely moisture-free before further processing.
3. Surface Flame Treatment: A flame treatment is applied to the surface of the keypads to improve adhesion by altering the silicone’s surface properties.
4. PU Coating Application: A precise layer of PU is sprayed onto the silicone button surfaces to enhance durability and provide a smooth finish.
5. Infrared Curing: The coated keypads are dried and cured in an infrared furnace, ensuring the PU coating is fully set and bonded to the keypad surface.

Surface Treatment Options:

1. Color Coating

This treatment involves applying a layer of colored finish to the keyboard surface, enhancing its aesthetic appeal and allowing for customization to meet specific design requirements.

2. Epoxy Coating

A durable epoxy layer is applied to the keyboard, providing excellent resistance to abrasion, chemicals, and moisture while ensuring a long-lasting, high-gloss finish.

3. Laser Etching

This precision technique uses lasers to engrave designs, logos, or text directly onto the keyboard surface, offering high clarity and durability for legends and symbols.

4. Matte Smooth Finish

This treatment results in a soft, non-reflective surface that minimizes glare and enhances the tactile experience, making it ideal for user-friendly applications.