In the development process of modern electronic technology, connectors, as key components for connecting electrical components, are widely used in fields such as automobiles, electronic equipment, power tools, instruments, and industrial equipment. The reliability and stability of connectors directly affect the performance and safety of the entire system. Therefore, the protective measures inside the connector are particularly important, especially in applications that require high protection levels, environmental resistance, and long-term stability.
Due to the fact that connectors are often exposed to extreme environmental conditions such as high temperature, humidity, vibration, and chemical corrosion, encapsulation technology has become an effective means of protection to ensure that electrical connections are not disturbed or damaged by external environments. Sealing adhesive can not only provide structural support, but also increase the electrical insulation, waterproofing, weather resistance, and impact resistance of connectors, prolong their service life, and ensure the stable operation of the system.
Challenge of connector encapsulation materials
During the use of connectors, they face various environmental challenges, which require the sealing adhesive to have corresponding performance to cope with different working conditions:
Crack resistance and high temperature stability: Connectors are usually exposed to high temperature environments, especially in fields such as automobiles and industrial equipment, where the operating temperature may reach its limit. The sealing material must be able to maintain stable performance at high temperatures and effectively prevent cracking, ensuring the long-term reliability of the connector.
Electrical insulation: Connectors involve electrical connections, and their electrical insulation is crucial. The sealing adhesive must have excellent electrical insulation performance to prevent faults caused by electrical leakage or short circuits.
Waterproof and moisture-proof: Connectors are often exposed to moisture or liquids, and waterproof and moisture-proof are the key to ensuring the normal operation of connectors. The sealing adhesive must have low water absorption, which can effectively prevent moisture from seeping in, thereby avoiding short circuits or corrosion problems.
Mechanical stress resistance: Connectors are often exposed to vibration or impact environments, and the sealing adhesive needs to have a certain degree of elasticity and toughness to absorb mechanical stress and avoid loose connections or poor contact caused by external impacts.
Chemical resistance: In some industrial applications, connectors may come into contact with chemicals, oil stains, or other corrosive substances, so the sealing adhesive needs to have chemical corrosion resistance to ensure the reliability of the connectors.
Recommendations for connector sealing materials
In this context, it is crucial to choose a high-performance potting adhesive suitable for internal potting of connectors. EP 1788 A/B two-component solvent-free epoxy potting adhesive, as a room temperature curing potting material, plays an important role in the packaging protection of connectors due to its excellent performance characteristics.
▶ Excellent adhesion and cracking resistance
▶ Low CTE coefficient of linear expansion
▶ Excellent electrical insulation and thermal stability
▶ Low water absorption rate, good waterproof and moisture-proof properties
EP 1788 A/B is a two-component solvent-free ambient temperature curing epoxy sealant that meets UL 94 V-0 flame retardant rating. It is suitable for packaging and protection of motors, automotive electronics, power tools, reactors, instruments, etc. Most plastic and metal substrates have excellent adhesion and temperature resistance.
summary
EP 1788 A/B two-component solvent-free epoxy potting adhesive has become an ideal choice for connector potting protection due to its excellent performance. EP 1788 A/B provides comprehensive protection in complex environments such as high temperature, humidity, chemical corrosion, or mechanical vibration, ensuring the long-term stable operation of connectors. Its excellent adhesion, electrical insulation, low CTE expansion coefficient, water resistance, and chemical corrosion resistance make it widely used in fields such as automotive electronics, power tools, instruments, and industrial reactors, becoming a key material to ensure the reliability of connectors. By using EP 1788 A/B sealant, the performance and lifespan of connectors can be greatly improved, meeting the strict requirements for reliability and durability of modern electronic device connectors.
Tags: Connector Internal Sealing · Connector Sealing · Sealing Material
