Characteristics and applications of liquid hot melt adhesives
06 Nov 2025
I. Core Characteristics of Liquid Hot Melt Adhesives
Liquid hot melt adhesives are liquid adhesive materials formed by heating and melting hot melt adhesive particles. Compared with other adhesive materials, liquid hot melt adhesives have the following characteristics:
High Bond Strength
Liquid hot melt adhesives can achieve high-strength bonding in a short time, meeting the needs of various bonding applications.
Easy to Use
Liquid hot melt adhesives are easy to use; simply heat them to a liquid state in a heater.
Rapid Curing
Liquid hot melt adhesives cure quickly after application, allowing for rapid bonding even in busy production environments.
Economic and Storage Advantages
Low Waste: 100% solids are fully usable, reducing transportation and storage costs.
Long-Term Stability: Solid form facilitates storage and is less prone to deterioration.
II. Application Scenarios of Liquid Hot Melt Adhesives
Liquid hot melt adhesives have wide applications in various industries, mainly including the following:
1. Packaging Industry. In the packaging industry, liquid hot melt adhesives can be used for carton sealing, label bonding, tape bonding, and many other applications.
2. Footwear Industry. Liquid hot melt adhesives can be used to bond parts such as soles and uppers in shoes, exhibiting high bonding strength and durability.
3. Automotive Manufacturing Industry. In the automotive manufacturing industry, liquid hot melt adhesives can be used to bond automotive interior parts, body components, and many other applications.
4. Electronics Industry. In the electronics industry, liquid hot melt adhesives can be used to bond circuit boards, encapsulate electronic components, and many other applications.
In short, liquid hot melt adhesives are a very common adhesive material, characterized by high strength, ease of use, and rapid curing, and are widely used in various industries.
III. Selection and Usage Recommendations for Liquid Hot Melt Adhesives
Select adhesive according to material: Different substrates (such as metals, plastics, and paper) require matching special hot melt adhesives to ensure bonding strength.
Controlling Heating Temperature: Excessive temperature may cause the colloid to decompose, while insufficient temperature will affect fluidity. Precise control of the melting temperature is necessary (typically 65℃~180℃).
Recommended Brand: Kanglibang Liquid Hot Melt Adhesive: No heating required for curing, significantly reducing production costs.
IV. Future Development Trends
Low-Temperature Hot Melt Adhesives: Lowering application temperature reduces material damage, extends equipment life, and saves energy.
Low-Density Hot Melt Adhesives: Achieving lightweighting and resource conservation through improvements in material density or manufacturing processes (such as foaming technology).
Odorless Hot Melt Adhesives: Using low-odor raw materials (such as hydrogenated rosin esters) to meet the high health requirements of industries such as automotive, hygiene products, and food.
Biodegradable Hot Melt Adhesives: Developing products that are easy to recycle or naturally degrade, responding to environmental trends.

