In today’s rapidly developing mobile electronic devices, power banks have become an essential “endurance tool” for people. However, with the continuous increase in capacity and power, internal heating, weather resistance, and safety issues have also become prominent. How to provide reliable protection for internal core components while ensuring energy density? Sealing glue becomes a crucial step.
Why do power banks need to be sealed?
The internal structure of a power bank is compact, usually including core components such as battery cells, circuit boards, protective chips, and heat sinks. When outputting high power for a long time, the PCB and power devices will continue to heat up. If the heat dissipation is poor, it not only affects performance but may also pose safety risks.
The sealing adhesive mainly plays the following roles:
Thermal conduction and heat dissipation: Quickly transfer heat to the shell, reducing the core temperature
Insulation protection: isolate moisture and dust to avoid short circuits
Structural reinforcement: earthquake and drop resistance, enhancing durability
Flame retardant safety: prevent accidental overheating and combustion
Glue requirements
For the special structure and usage environment of power banks, the sealing adhesive must meet the following conditions:
Natural curing: No heating required, suitable for mass production and assembly
Thermal conductivity ≥ 2.0 W/m · K: ensures rapid heat dissipation
Semi flowing state: It can fill gaps and is not easy to flow to places where it should not flow
Flame retardant grade V-0: ensures safe use and meets the fire prevention standards for electronic products
Recommended product: SIPA 8250-20
In response to the above requirements, we recommend SIPA 8250-20 thermal conductive flame-retardant sealant – a silicone material designed specifically for portable energy storage devices.
core performance
High thermal conductivity: thermal conductivity of 2.0 W/m · K, effectively reducing temperature rise of power devices
Flame retardant V-0: Compliant with UL 94 V-0 standard, excellent flame retardant performance
Adjustable viscosity: Semi flowing design for easy control of coating and filling
Room temperature curing: The production line does not require additional heating, simplifying the process
Weather resistance and stability: keep flexibility for a long time, anti-aging, damp heat resistance
View product details
For high-performance power banks, potting glue is not only a safety protection material, but also a “hidden assistance” for performance improvement.
SIPA 8250-20 gives your product an advantage in market competition with its high thermal conductivity, flame retardancy, and durability.
Tags: Power bank thermal potting · Power bank potting adhesive · Organic silicon thermal potting adhesive · Organic silicon potting adhesive · Electronic sealing adhesive
