Does Silicon Oil Affect PCB Circuit Boards?

Consumers do not consider the complexity of their basic remote controls. The internal circuit board, or PCB, of a remote control needs padding to protect the structure and wiring along its assembly body. The pads in remote controls are made of silicon oil.

Significance

Silicon oil allows an even distribution of pressure across a remote control button. Additionally, it resists thermal changes, ensuring the remote control has a long service life.

Effects

As remotes age and become worn from use, the silicon can possibly leak out from the buttons onto the PCB. The silicon's non-conductive composition affects the circuit board by blocking electrical signals.

Expert Insight

A consumer has the option of opening the remote to clean the silicon oil from the electrical contacts. Electrical and computer engineering doctorate, Michael Shell, suggests using a strong, liquid degreasing detergent to clean the PCB. Remove the detergent with warm water and dry the PCB to prevent standing water damage.

References

• Michael Shell: The Remote Control Keypad Silicone Oil Problem
• Arlon Silicone Technologies: Low Cost Per Cycle Silicone Press Pad with Predictable Service Life