In manufacturing industries such as electronics, automotive, and home appliances, potting adhesive and hot melt adhesive are often used for sealing, fixing, insulation, and other processes. But many people are not clear about the difference between these two types of glue. Today, Elaplus will explain their definitions, application scenarios, advantages and disadvantages, and selection suggestions in one go 👇
🔍 What is sealant?
Potting compound is a liquid two-component or single component adhesive that can flow and completely encapsulate electronic components. After curing, it forms an elastic or rigid body with properties such as waterproof, moisture-proof, high and low temperature resistance, insulation, and chemical corrosion resistance.
📌 Typical applications:
LED driver power supply encapsulation
Transformer, power module, sensor packaging
Automotive Electronic Control Module (ECU) Packaging
🔥 What is hot melt adhesive?
Hot melt adhesive is a thermoplastic adhesive that melts after heating and quickly solidifies after cooling. It is usually in the form of solid rods or particles and is commonly used in automated dispensing or spraying equipment.
📌 Typical applications:
Packaging industry sealing
Furniture edging
Quick bonding of plastic parts for household appliances
📊 Potting compound vs hot melt adhesive: key differences at a glance
Item potting compound hot melt adhesive
Physical state liquid, needs to solidify solid heated and melted for use
Curing method: chemical reaction (heating or room temperature), physical curing after cooling
curing time relatively long (several hours to several days) extremely fast (a few seconds)
High adhesive strength, good weather resistance, oderate, suitable for temporary/quick fixation
Main applications packaging, infusion, insulation protection rapid bonding, and positioning
🎯 Selection suggestion:
Pursuing long-term stability and sealing protection: choose potting adhesive
Pursuing fast efficiency, temporary fixation or automated production: choose hot melt adhesive
Tags: Industrial Adhesive Knowledge · Differences between potting compound and Hot Melt Adhesive · potting compound Function · Hot Melt Adhesive Usage
