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Ep3115(#4) High thermal conductivity 0.7W/M.K Epoxy Potting Compound Sealant
Ep3115(#4) High thermal conductivity 0.7W/M.K Epoxy Potting Compound Adhesive
A 0.7 W/m·K epoxy potting compound sealant is a specialized, moderately thermally conductive resin designed to protect electronic assemblies while actively dissipating heat.
EP 3225(4#)A/B has the following characteristics:
l Excellent bond and cracking resistance
l Low CTE linear expansion coefficient
l High thermal conductivity
l Excellent electrical insulation and stability
l It is used in the temperature range of -50℃-180℃
l Water absorption is very low, good water and moisture resistance
l Excellent adhesion to metals (iron, aluminum and copper)
Key Features to Expect
Operating Temperatures: Designed for extreme environments, typically spanning -50~+200℃
(with some specialty formulations withstanding up to +200℃
Electrical Isolation: While highly conductive to heat, these epoxies offer excellent electrical insulation, protecting circuitry against voltage spikes and static.
Environmental Resistance: The cured compounds create a resilient barrier against moisture, salt water, humidity, and mild chemicals.
Common Applications
Power Supplies: Encapsulating transformers, drivers, and power converters to mitigate heat build-up.
Automotive Electronics: Protecting under-the-hood sensors, control modules, and electric vehicle battery components from harsh environments.
Industrial Controls: Sealing heavy-duty relays, switches, and outdoor circuit boards against moisture and dust.
LED Drivers: Wicking away heat from high-brightness lighting modules to significantly extend their operational lifespan
Epoxy is designed for staking and encapsulating electronics on circuit boards.
PU 6030 Light yellow translucent Polyurethane potting compound
PU 6030 is a two-component solvent-free polyurethane material at room temperature or heat curing. It is light yellow and transparent after curing. It is used for two-component sealing, filling, flame and other fields. The raw material does not contain heavy metals, green environmental protection, wide process operability, high physical properties of the finished product, and good adhesion to the substrate. Room temperature and heating curing can be, can be deep curing, curing less heat, low shrinkage rate; Excellent
flexibility after curing, with good flame retardant effect.
l Excellent low temperature characteristics, excellent weather resistance
l Excellent flame retardancy, 94 V-0
l Excellent electrical insulation, stability
Typical application
l This product is often used in electronic capacitors, automotive electronic module potting;
l Household appliances such as lampblack stove, microwave oven, rice cooker, washing machine,
l Good water resistance, moisture resistance, water absorption is very low
l Good adhesion to most metals and plastics air conditioning control PCB board filling glue seal;
l Life smart toilet, induction toilet, metal induction garbage can circuit board and magnetic coil of moisture and waterproof potting protection.
Conventional performance
Test items Units and Conditions Test standard A / B
Appearance A
Visual Visual Clear yellow fluid
B Visual Clear yellow fluid
A+B Visual Light yellow translucent fluid
Viscosity A
25℃ cps GB/T 2794-2022 600± 350
B GB/T 2794-2022 400±250
A+B GB/T 2794-2022 500±200
Density A 25℃ g/ml GB/T 13354-1992 0.96±0.05
B GB/T 13354-1992 1.10±0.05
Mixing ratio Weight ratio ---- A ： B = 100： 100
Operation time 25℃ min, 150g GB/T 10247-2008 10-20
Gel time 25℃ ,min, 150g GB/T 10247-2008 30-50
Curing conditions C /h, 150g GB/T 10247-2008 25℃/24h or 70℃/2h
Post-cure characteristics
Items Units or conditions Test standard PU 6030
Hardness Shore-A GB/T 531-2008 25-45
Water absorption 24hrs, 25 °C, % GB 8810-2005 < 0.3
Dielectric strength 25 °C, kV/mm GB/T 20028-2005 > 16
Flame resistance UL-94, grade ANSI/UL-94-1985 V-0
Application temperature ℃ GBT 20028-2005 - 60-120
Thermal conductivity W/m.K ASTM D5470 0.2
Volume Resistance 25℃ , Ω·cm GB/T 1692-2008 >1*1012
Version 1.01 / 2026-01 / PU 6030 www.shmaxtech.com
Dielectric constant 50Hz ，25℃ GB/T 1693-2007 3.0
Water vapor transmission rate 23±℃, 50± 5%RH GB/T 1037-2021 11.1 g/m2 24h
* Note: The above performance data is the typical test data of the product at 70% humidity and 25℃ temperature. It is only for the refe rence of customers, and cannot be completely guaranteed to achieve all the data in a specific environment. When using, please refer to the actual data.
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