We are a Rubber Glue Dome Array Supplier in China

Rubber Glue Dome Array

keypad dome array a layer of Rubber Glue on top of the Mayler or EMI. This rubber glue, with its silicone-based or acrylic PSA (Pressure-Sensitive Adhesive) composition, provides strong adhesion to keypads and PCBs. It offers good durability, flexibility, and resistance to environmental factors, making it ideal for secure mounting and insulation in electronic devices.

Materials Involved:

1. Maylar (Mylar) Film:

• Function: Provides a durable layer that carries metal dome contacts. Mylar is a type of polyester film that offers good mechanical strength and electrical insulation.
• Application: Often used in membrane switches and other applications where reliable and consistent contact is required.
  

  2. Silver Paste or Silver Carbon Paste:

• Function: Acts as an ESD (Electrostatic Discharge) control layer. Silver paste or silver carbon paste can conduct and dissipate static electricity, reducing the risk of damage to sensitive electronic components.
• Application: Printed on the Maylar to create a conductive path that helps in neutralizing electrostatic charges.

3. Rubber Glue (Silicone or Acrylic PSA Adhesive Tape):

• Function: Provides adhesive properties to bond components like keypads or PCBs. The silicone adhesive offers excellent adhesion to a variety of surfaces and maintains its performance over a range of temperatures.
• Application: Applied on top of the Mylar or EMI layer to secure the components in place. Silicone adhesives are preferred for their flexibility, durability, and resistance to various environmental conditions.

When reviewing a datasheet for rubber glue or silicone adhesive, you should look for datasheet considerations:

• Adhesion Strength: How well the adhesive bonds to different substrates.
• Temperature Range: The range of temperatures over which the adhesive maintains its properties.
• Chemical Resistance: Resistance to solvents, oils, and other chemicals.
• Flexibility: How well the adhesive accommodates movement or expansion.
• Electrical Insulation: Any impact on the electrical properties of the assembly.

If you need specific details from a datasheet or have other technical questions, feel free to contact us!