Why the PCB & HDD Industry Requires Silicone-Free Rubber

The Critical Role of Silicone-Free Rubber in PCB and HDD Manufacturing
In advanced electronics industries, such as Printed Circuit Board (PCB) Lamination and Hard Disk Drive (HDD) Assembly, "Molecular Cleanliness" is the cornerstone of the production process.

Even microgram-levels of "silicone residue" can cause severe adhesion problems, copper foil delamination, or Outgassing during the Vacuum Lamination process.

Therefore, all rubber products used in these processes must be completely "Silicone-Free" to prevent contamination and maintain the absolute purity of the Cleanroom environment.

The Risks of Silicone-Based Products (Silicone Contamination)

Using standard rubber with silicone compounds in high-purity manufacturing leads to three critical failures:

1. Silicone Contamination
Silicone has a tendency to volatilize (evaporate) and settle as a thin film on circuit surfaces. This directly causes copper layer delamination, especially during the high-pressure and high-temperature conditions of Vacuum Lamination.

2. Outgassing and Voids (Bubbles)
Silicone compounds that vaporize under a vacuum release gas (Outgassing), which interferes with the circuit's structural integrity. This creates blemishes and voids, compromising the final product's quality and reliability.

3. Reduced Adhesion & Poor Surface Cleanliness
Silicone has a very Low Surface Energy. This characteristic significantly weakens the bond between material layers, causing the adhesion of glues, films, and epoxy to fail.

Why "Silicone-Free Rubber" is the Industry's Solution

Silicone-Free Rubber products are specifically engineered to solve these problems, offering the essential properties required by the advanced electronics industry.

   100% Silicone-Free Certified
Formulated with special compounds that contain zero Polydimethylsiloxane (PDMS), completely eliminating the risk of contamination during lamination and assembly.

   High Elasticity & Compression Recovery
The rubber maintains excellent flexibility under high temperatures and pressures. This ensures even pressure distribution during lamination, prevents uneven pressing, maintains the flatness of circuit layers, and extends the life of the Vacuum Pad.

   High Thermal & Pressure Resistance
Designed to withstand high temperatures exceeding +200°C and pressures over 10 MPa without deforming, making it ideal for the high-stability, high-precision PCB lamination process.

   Low Outgassing & Cleanroom Grade
Passes strict testing for low Total Mass Loss (TML) and Volatile Condensable Materials (VCM) per ASTM E595 standards. It is suitable for use in Class 1000 Cleanrooms or lower.

Practical Applications of Silicone-Free Rubber
Silicone-Free materials are used in critical machine components throughout the PCB and HDD production lines.

Why Leading Manufacturers Choose Silicone-Free Rubber

In the world of high-precision manufacturing, a single, microscopic point of failure can result in high-value losses for an entire production line.

Therefore, choosing Silicone-Free materials is not just a "requirement" — it is a global quality standard for world-class production systems. This standard is prioritized by leading manufacturers such as Seagate, Western Digital, Toshiba, and top-tier PCB producers worldwide.

Silicone-Free Rubber Solutions from Polytech Industry
Polytech Industry Company Limited
As a leading manufacturer and supplier of Silicone-Free Rubber products, we offer comprehensive services, including:

• Compression & Vacuum Forming
• Silicone-Free Rubber Sheet
• Custom production based on client drawings and specifications
  

Contact us for more information or to request a quote:
   Line: @ptirubber
   Email: info@ptigroups.com
   Website: www.polytechindustry.co.th