From smartphones to computers to household appliances, they all need to work steadily in a variety of harsh environments. To this end, high quality sealant is particularly important. In recent years, the modified siloxane sealant has been gradually favored by the electronic manufacturing industry because of its excellent performance. The fied siloxane sealant has many outstanding advantages over conventional ordinary silicone, which will be elaborated in the following five aspects.
 
1. Better resistance to damp and heat stability energy
Electronic products in the use of the process, often need to face a variety of temperature and humidity tests. For example, outdoor equipment may be exposed to temperatures up to 50 degrees Celsius in summer, and it may be exposed to temperatures worth tens of degrees below zero in winter. The long-term stability of ordinary silica gel in the alternation of cold and cold is insufficient, and hardening or softening may occur for a long time, affecting the sealing effect.
 In contrast, the modified siloxane sealant has a stable chemical structure. It can alternate hot and cold in the temperature range of-50℃ to 125℃, maintaining a stable performance curve for more than 3000 hours, not softening due to high temperature, and not hardening due to low temperature. This characteristic makes it particularly important in electronic products that require prolonged exposure to extreme temperatures, such as automotive electronics, outdoor communication equipment, etc. This also means that its theoretical life in the natural environment is more than 60 years.
 
2. Excellent environmental aging resistance
The service life of electronic products is often longer, so the aging resistance of sealant is also an important factor when choosing. Ordinary silica gel in long-term exposure to ultraviolet light, ozone, moisture and other environmental factors, the phenomenon may appear aging phenomenon, such as cracking, discoloration, loss of elasticity. This not only affects the appearance of the electronic products, but also leads to the decline of the sealing performance, which then affects the normal work of the product.
 The fied siloxane sealant has strong aging resistance. Its special chemical structure makes it have excellent resistance to ultraviolet light and ozone, and it can maintain the original elasticity and strength even after long-term use in the harsh environment. Because of this, the modified siloxane sealant is widely used in solar energy equipment, outdoor lamps and other electronic products that need to be exposed to the outdoor environment for a long time.
 
3. Higher adhesion properties
The adhesive property of the sealant is directly related to its sealing effect. Ordinary silica gel has poor adhesion on some smooth or low surface energy materials, such as plastic, metal, glass, etc., and may need to use the undercoating or surface treatment agent to enhance its adhesion force, which not only increases the process steps, but also may affect the production efficiency.
 The modified siloxane sealant significantly improves the adhesion properties to various substrates through the special molecular design. Whether smooth metal surface, or hydrophobic plastic, modified siloxane sealant can adhere firmly, to ensure the reliability of the seal. This excellent adhesion performance makes it perform well in applications requiring high adhesion and high reliability, such as electric vehicle battery pack sealing, electronic component packaging, etc.
 
4. Long-term, low-volatile energy
Electronic products have strict requirements on the volatile material content and the performance of sealant. After curing, ordinary silica gel will still continue to volatilize nonvolatile small siloxane molecules, accumulating at the contact point, causing a short circuit.
 Modified siloxane sealant has a lower volatile amount of siloxane small molecules, which is one of dozens of ordinary silica gel. Therefore, it is more stable and reliable when used in electronics, especially near the contacts. This makes the modified siloxane sealant widely used in high-frequency communication equipment, power electronic equipment and other fields.
 
5. Better elasticity and flexibility
The elasticity and flexibility of the sealant is crucial to deal with the mechanical stress and deformation of the electronic product during its use.
 After long-term use of ordinary silica gel may appear elasticity decline, stiffness, fracture and other problems, which affect the sealing effect and product life.
 Modified siloxane sealant has better elasticity and flexibility. Its unique molecular structure enables it to maintain excellent elasticity and flexibility in both high and low temperature environments, without obvious physical performance changes due to temperature changes. This makes it perform better in areas that require frequent opening and closing or mechanical stress, such as waterproof smartphone sealing and laptop frame sealing, etc.
 
 Taking ENIENT EG0510 series as an example, modified siloxane sealant has become an ideal choice in the field of electronic product sealing with its excellent high and low temperature resistance, aging resistance, higher adhesion performance, excellent electrical insulation performance and better elasticity and flexibility. In the future electronic product design and manufacturing process, the selection of modified siloxane sealant will undoubtedly greatly improve the reliability and service life of the products.

 
 The performance and life of electronic products depend greatly on the quality of every detail, and as one of the key materials, choosing the right type is crucial. Modified siloxane sealant with its excellent high and low temperature resistance, aging resistance, higher adhesion performance, excellent electrical insulation performance and better elasticity and flexibility, help electronic products in a variety of complex environments stable operation, to provide users with better use experience.
 
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Reference article source: ENIENT® British Chemical shares technical data and case release