The use of the wrong materials in electronic products can lead to more after-sales problems. More importantly, it can cause safety problems such as overheating or even fire. So is silicone safe in electronic products? This is very important for your business to know.
The Application Of Silicone In Electronic Products
Silicone is widely used in electronic products. Its functions are insulation, sealing, protection and shock absorption.
You can use silicone for a protective layer of the PCB or for the insulation layer of wires and cables. If your product needs to be waterproof, you can also use silicone to seal electronic devices. In daily life, many buttons on remote controls are also made of silicone.
Why Is Silicone Considered Safe For Electronics?
Why is electronic-grade silicone widely used? Here are some reasons.
Stable Insulation Performance
People who are selecting electronic products often worry about one thing: when the product is used for a long time, will it cause electrical leakage? This is important for the user’s safety. If you use silicone to wrap the wires or apply it as a protective layer to the printed circuit board (PCB), you can ensure the safety of your customers during their use.
Silicone is a non-conductive material, so it is difficult for an electric current to pass through. It can act as an insulating barrier between conductive components to avoid circuit failures. This can reduce the risk of short circuits.
Some traditional insulation materials may experience a decline in performance after long-term use. If your product needs to be used continuously and users have high requirements for the insulation performance of the product, silicone is a better choice.
Outdoor Applications
If your product needs to operate outdoors, it is important to choose a material that can be used in different environments. You can choose silicone: whether exposed to wind or sunlight, it can maintain stable performance.
Some outdoor electronics, such as industrial equipment, outdoor LED displays, and communication devices, are exposed to ultraviolet radiation, dust, rain, and temperature changes for a long time. Outdoors, some traditional insulation materials like PVC and rubber may age and may no longer effectively protect electronic components.
Silicone can be used in high or low temperatures while maintaining its flexibility and insulation properties. It is also UV-resistant and moisture-proof. These advantages make it a good choice for long-term outdoor applications.
Performance Of Sealing
Choosing the right sealing material is important for protecting internal components. If the wrong sealing material is used, electronic products are exposed to dust, moisture, and other environmental pollutants for a long time, water may enter, and the products may corrode.
When poor sealing causes damage to the circuit, it may reduce customer trust in product reliability.
You can choose flexible silicone to reduce these risks. The flexible silicone can better fit the complex structure, making it difficult for dust and moisture to enter the interior of the product.
When sealing electronic products such as electronic housings, LED cabinets, and LED lighting, silicone is a very good choice.
Shock Absorption
When your electronic products are often under external impacts during transportation and daily use, without taking some protective measures, your customers may find internal components of the electronic product shift or even be damaged.
You can choose silicone as a shock-absorbing material because silicone rubber has good elasticity. It can reduce the impact on electronic components such as PCBs and connectors.
When Silicone May Not Be Suitable?
Although silicone is widely used in electronic products, it can become less safe if used improperly. When selecting a load-bearing material, silicone is not as suitable as metals or plastics, as it is softer to the touch and is not designed for structural load-bearing purposes.
For some industrial electronic applications, silicone may degrade if it comes into contact with strong acids and alkalis for a long time, so you need to choose a chemically resistant material.
How To Choose The Right Silicone For Electronics?
The types of silicone widely used in electronic products primarily include RTV silicone, LSR (Liquid Silicone Rubber), and HTV silicone. When making a selection, you should consider the product’s requirements, application, and other factors. Different electronic products require different types of silicone.
RTV silicone is better for small-batch sealing applications, as it does not require complex processing equipment. If you need to mass-produce electronic components, LSR (Liquid Silicone Rubber) would be a more appropriate choice, because it supports automated manufacturing and has a high production efficiency.
HTV silicone has more stable performance, so it is often used in high-temperature environments like automotive engine compartments.
FAQ
Can Silicone Affect Electronic Signal Performance？
Electronic-grade silicone does not significantly affect electronic signals. But if used in high-frequency or RF applications, or if the silicone encapsulation is too thick, or the raw silicone material used is of poor quality, it may lead to some influence on electronic signals.
Does Silicone Outgas Or Affect Sensitive Electronic Components?
Some silicone materials may release gases during curing or be used in precision electronic devices for a long time, an excessive accumulation of such gases may affect the product’s performance.
But the silicone formulations used in electronic products are carefully designed, which can reduce these risks.
Can Silicone Be Used In Contact With Batteries Or Energy Storage Systems?
Yes, silicone is often used in batteries and energy storage systems because it offers insulation, sealing capabilities, high-temperature resistance, and shock absorption.
What Are The Common Defects When Using Silicone In Electronic Manufacturing?
The common problems with silicone in electronic manufacturing are as follows: First, air bubbles are caused by incomplete removal of air. Second, the temperature and formula ratio are incorrect, resulting in incomplete curing. Third, it does not adhere well to electronic components. Fourth, low-quality silicone is used, which contaminates electronic components.
What Certifications Are Required For Electronic-grade Silicone?
There is no globally recognized certification for silicone used in exported electronic products, it depends on the type of product and the market you are selling it to. Some of the most common certifications include RoHS, REACH(the basic standards regarding the prohibition of hazardous substances), UL, ISO, and OEM-specific standards.
Final Thought
Legensilico is a manufacturer with rich experience in the production of silicone products. From design to production, Legensilico will provide the best service at every stage. If you want to know more about silicone products, consult us right away!
