Products and Services Adhesive Product SeriesTwo-component Epoxy Potting Compound CT-E3005

Two-component Epoxy Potting Compound CT-E3005

CTE3005 is a two-component epoxy sealant.TheA component of this product is a viscous liquid mainly composed of epoxy resin and functional powder;while the B component is a transparent modified amine liquid.This product has good fluidity and can be manually filled or automaticallyflled by a dispensing machine.After curing,it has high adhesive strength to materials such as metal,gold plating,silver plating,PA+GF,etc.

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Product Features

Moderate viscosity and excellent leveling property, applicable for manual potting and automatic dispensing machine potting.

The adhesive features well-balanced viscosity with no sedimentation or stringing. It delivers superior self-leveling performance, automatically filling gaps and avoiding bubble accumulation after potting.
Medium-temperature curing with short curing time

It cures and shapes rapidly at medium temperature, greatly shortening heating waiting time and reducing damage to heat-sensitive metal components caused by high temperature.
High bonding strength, showing superior adhesion to gold-plated layers, silver-plated layers, PA+GF and other materials.

Compatible with various common electronic substrates, it delivers strong adhesion on plated surfaces and provides stable bonding without delamination on glass fiber reinforced nylon. The adhesive layer features good toughness and resistance to vibration peeling, suitable for precision electronic encapsulation applications.
Excellent waterproof and sealing performance, reaching IP68 waterproof rating.

The cured adhesive forms a dense, gap-free layer with outstanding dustproof and waterproof performance, meeting IP68 protection standard. It remains impermeable even under prolonged water immersion, effectively resisting moisture and corrosion to protect internal components from water vapor damage.
Excellent resistance to damp-heat aging. After 1000 hours of double 85 test, the degradation of physical properties such as tensile strength and shear strength of the product is minimal.

Validated through rigorous 1,000-hour double 85 damp-heat aging test, it suffers minimal performance degradation under high-temperature and high-humidity conditions with high retention rate of bonding strength. Featuring excellent hydrolysis resistance and peel resistance, it is suitable for long-term encapsulation of outdoor and humid-location equipment.
Excellent resistance to high and low temperature shock (-40℃ to 105℃); no cracking or deformation after 1000 hours of temperature shock testing.

With wide temperature tolerance range, it resists stress damage under rapid temperature alternation. The adhesive layer remains intact without cracking or deformation after 1000 hours of cyclic temperature shock, ideal for industrial electronic components exposed to drastic temperature fluctuations.
It boasts excellent dielectric properties, high volume resistivity and dielectric breakdown strength, as well as outstanding tracking resistance.

It delivers outstanding insulation performance, featuring low electrical conductivity and strong resistance to high-voltage breakdown. No leakage or tracking occurs even after long-term service. It ensures safer encapsulation for motors, circuit boards and electronic components and prevents short-circuit failures.

Technical Parameters Before and After Curing

Item			Unit	Performance Parameters
Before Curing	Appearance	Component A	/	Black viscous liquid
	Appearance	Component B	/	Light yellow transparent liquid
	Viscosity at 25°C	Component A	mPa·s	12000±2000
	Viscosity at 25°C	Component B	mPa·s	400±50
	Density	Component A	g/cm3	1.50±0.05
	Density	Component B	g/cm3	1.00±0.05
	Mixing Ratio		A:B	100 ：20
	Mixed Viscosity (25°C)		mPa·s	3000±500
	Working Time (25°C, 125g)		min	＞60
	Gel Time (25°C, 125g)		h	2
	Curing Time at 80°C		h	1
After Curing	Density		g/cm3	1.45±0.05
	Hardness		Shore D	≥80
	Glass Transition Temperature		℃	≥125
	Coefficient of Linear Thermal Expansion (CTE)		μm/m·℃	35
	Tensile Strength		MPa	≥20
	Elongation at Break		%	≥20
	Shear Strength	Al3003/Al3003	MPa	≥10
	Shear Strength	PA/PA	MPa	＞2
	Dielectric Strength		KV/mm	≥20
	Volume Resistivity		Ω·cm	≥1.0x1015
	Dielectric Constant		/	3.5
	Dissipation Factor		%	0.7
	Thermal Conductivity		W/m · K	0.6
	Comparative Tracking Index (CTI)		V	600

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Application Areas

Waterproof sealing for aviation plugs and power connectors

Suitable for potting and sealing of aviation connectors and various power connectors. It provides waterproof, moisture-proof and dust-proof protection, resists erosion from high/low temperature and humid environments, prevents pin oxidation and electric leakage, and extends the service life of connectors.
Waterproof sealing for charging gun sockets and circular connectors

It can be used for waterproof sealing of new energy charging gun sockets and all types of circular connectors, filling tiny gaps completely to stop water penetration. It maintains stable bonding without delamination during long-term service under alternating temperature and humid conditions, preventing terminal rust and electric leakage.

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Specifications

30kg per set (Component A: 25kg per barrel, Component B: 5kg per barrel)

Storage and Transportation

Store in a cool, dry and dark place below 25°C with tight sealing.

This product is non-flammable and non-explosive, and may be shipped as general chemicals. Avoid direct sunlight, extrusion and collision during transportation to prevent leakage.

The shelf life of this product is 6 months.

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