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DeepMaterial - Reactive Type of Hot Melt and Pressure Sensitive Hot Melt Adhesive
Hot melt adhesives exist in solid form and are classified by different types of raw materials. Polyurethane (Polyurethane Hot Melt Adhesive) is a reactive type of hot melt adhesive for the base material. After cooling, there will be a chemical cross-linking reaction. Rubber-based pressure-sensitive hot melt adhesives are mainly used in packaging, labels ,metal back stickers and so on.
Reactive types of hot melt adhesives can bond a variety of substrates, including some difficult-to-bond plastics. These adhesives can handle all walks of life`s toughest bonding applications. The hot melt adhesives is the best choose of high-speed processing, bonding diversity, large gap filling, rapid initial strength and less shrinkage.
DeepMaterial reactive types of hot melt adhesives have many advantages: the open time ranges from seconds to minutes, did`t need the fixtures, long-term durability and excellent moisture resistance, chemical resistance, oil resistance and temperature resistance. DeepMaterial`s reactive types of hot melt adhesive products are solvent-free.
Temperature Resistance
Hot melt adhesives of different systems have different temperature resistance ranges.
Bonding Different Substrates
Different systems of hot melt adhesives have different adhesion to polar or non-polar substrates, and are suitable for bonding different substrates. Such as various plastics, metal and wood and paper.
Chemical Resistance
Different systems of hot melt adhesives have different resistance to chemical media.
Bonding Strength
Thermoplastic hot melt adhesives can gain ultimate strength immediately after cooling. They soften again when the temperature rises. Moisture-curing polyurethane hot-melt adhesive exists in thermosetting form after absorbing moisture and cross-linking, and the cured polyurethane hot-melt adhesive cannot be melted anymore.
Advantages of hot melt adhesive:
- High production efficiency (shorter curing time)
- Easy to realize the automate the process
- Combines adhesive and sealant properties
Advantages of pressure sensitive hot melt adhesive
- Long-lasting stickiness
- Self-adhesive coating
- Coating and assembly can be separated
Advantages of reactive polyurethane hot melt adhesive
- Low application temperature
- Long opening hours
- Quick curing