Different Types Of Hot Melt Glue

EVA Hot Melt Glue

1. Main ingredients

• EV resin
• Tackifying resin
• Wax (controls viscosity and open/close time)
• Antioxidant (anti-aging)

2. Features

• Versatile, low cost, mature process
• Low melting point (80-150℃)
• Strong initial tack, fast cure
• Moderate heat and aging resistance

3. Common applications

• Packaging (carton sealing, book binding)
• Furniture edge banding, labeling
• Assembly of daily necessities

4. Disadvantages

• Softens easily at high temperatures and cracks easily at low temperatures
• Potentially poorer bond durability than PO hot melt glue or reactive hot melt glue

PO Hot Melt Glue

1. Main ingredients

• Polyolefin resin
• Tackifying resin
• Stabilizers and other additives

2. Features

• Superior heat resistance and aging resistance compared to EVA
• Low odor, low density and environmentally friendly
• Longer open time, suitable for automated production lines
• Excellent flexibility at low temperatures, resists brittleness

3. Common applications

• High-end packaging (such as beverages, food and electronics)
• Book binding
• Automotive interiors, filter element bonding, and other applications requiring high heat resistance

4. Disacvantages

• Slightly higher cost than EVA
• Viscosity adjustment and formula control are more difficult

Hot Melt Pressure Sensitive Adhesive (HMPSA)

1. Main ingredients

• Base resin (thermoplastic elastomers such as SIS, SBS and SEBS)
• Tackifying resin
• Liquid plasticizer, antioxidant

2. Features

• Permanent adhesion at room temperature (not fully cured)
• No need to reheat for bonding
• Removable and reapplyable
• Excellent wettability on various substrates

3. Common applications

• Self-adhesive labels, protective films
• Tapes, sanitary products (diapers, etc.)
• Medical patches, automotive interior assembly

4. Disadvantages

• Poor high-temperature resistance (mostly below 80℃)
• Viscosity changes significantly with temperature

Summary

JCT can provide these types of hot melt glue production line turnkey projects. Feel free to contact us for more information: +86-181 3837 3963 (Whatsapp, Wechat) or jctmixing@outlook.com.