In modern electronics and electrical manufacturing, wire bundle head sealing is a critical protective process. It affects not only the electrical reliability of the entire machine, but also the service life, waterproof and dustproof grade, and electrical safety.
We recommend you to use – EP 2090 transparent epoxy structural glue.
I. Why seal the wire bundle head?
The wire bundle is a “blood vessel” in the electrical system used to transmit signals and electricity, and its connecting part – the wire bundle head – has long faced the following problems:
External moisture, dust, oil pollution and other erosion
High and low temperature changes trigger material heat expansion and cooling
Mechanical vibration causes terminal loosening, false welding
Water vapor infiltration triggers short circuit, breakage, corrosion
Therefore, the use of a high-reliability sealing adhesive for the overall sealing of the wire bundle head is a key step to improve product performance and extend life.
EP 2090: Sealing glue for complex environments
PRODUCT PROFILE
EP 2090 is a two-component constant temperature curing epoxy structural adhesive with a mixing ratio of 1:1 (weight or volume ratio). After curing, it forms a transparent and robust protective layer with excellent electrical insulation and environmental resistance. It is also available in a black version to meet different appearance requirements.
Performance Highlights
Performance Dimensions EP 2090 Performance
Excellent adhesion to metal, ceramic, glass, plastic, rubber, fiber fabric and other materials
Transparency Transparent hard colloids after curing, easy to observe the internal connection state
Operating time up to 40 minutes at room temperature for easy gluing
Electrical performance Stable dielectric strength and insulation between -50°C and 120°C
Environmental protection Resistant to moisture, oil pollution, chemical erosion, excellent sealing effect
Environmental properties No solvent, no corrosion, no curing by-products, safe environmental protection
Anti-pollution ability Adhesive layer surface is dense, dust, water vapor is difficult to adhere to
Three, wire bundle head filling typical application scenario
EP 2090 is suitable for the following typical electronic filling scenarios:
🚗 Automotive wire bundle connector: used for sealing parts of the engine compartment wire bundle, waterproof plug and other parts, resistant to temperature, shock and moisture.
🔌 Electric vehicle charging head: exposed to the outdoor environment, requires strong sealing and electrical insulation.
📡 Communication equipment connector head: PCB connection area sealing, improve corrosion resistance and protection level.
🔋 Energy storage system connector: often operated in -30 ℃ ~ + 100 ℃ environment, the requirements for colloidal thermal stability are very high.
EP 2090 vs. ordinary sealant contrast
Indicator EP 2090 Normal filling adhesive
Adhesion Excellent (for metal/plastic/ceramics) Moderate (requires bottom coating)
Curing by-product None (partially released acids)
Anti-pollution Strong, dense surface Weak, easy to absorb dust
Electrical insulation Stability Sensitive to moisture aging
Appearance options Transparent/black dual version Grey or semi-transparent
Operating time 40 minutes (adjustable) 15-20 minutes, difficult to control
In highly reliable electronic assembly, no small connection point can be ignored. EP 2090 transparent epoxy structural glue, with its strong adhesion, transparent visibility, excellent insulation, stable weather resistance and other properties, is the ideal choice for wire bundle head filling.
If you are looking for a sealant that protects critical connections in harsh environments, EP 2090 is undoubtedly a reliable professional solution.
Tags: organic silicone sealant · wire bundle head sealant · transparent sealant · transparent epoxy sealant
