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.

DeepMaterial Main Advantages of Hot Melt Adhesive

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

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.

Reactive Type of Hot Melt Adhesive And Pressure Sensitive Hot Melt Adhesive

Product Line Product Series Product Category Product Name Application Characteristics
Reactive polyurethane Moisture curing General type DM-6596

It is a fast curing reactive hot melt adhesive and sealant. It is a 100% solid, one-component material with a secondary moisture curing system. The material can be heated and solidified immediately, allowing processing without the need for thermal curing. It has good adhesion to common engineering plastics such as glass, aluminum, stainless steel and polycarbonate.

DM-6542

It is a reactive hot melt adhesive based on polyurethane prepolymer. It takes a long time to turn on. After the bonding line has cured, the adhesive provides good initial strength. The secondary moisture-cured cross-linked tie has good elongation and structural durability.

DM-6577

It is a reactive hot melt adhesive based on polyurethane prepolymer. The adhesive is pressure sensitive and provides high initial strength after adding the part immediately. It has excellent reworkability, good bonding performance and is suitable for the opening time of automatic or manual assembly lines.

DM-6549

It is a pressure-sensitive reactive hot melt adhesive. Its formula is cured by moisture, providing high initial strength and rapid setting speed instantly.

Easy to repair DM-6593

Impact resistant, reworkable is a reactive black polyurethane hot melt adhesive, cured with moisture. Long opening time, suitable for automatic or manual assembly line production.

DM-6562

Easy to repair.

DM-6575

Medium easy to repair, PA substrate bonding.

DM-6535

Easy to repair, fast curing, high elongation, low hardness.

DM-6538

Easy to repair, fast curing, high elongation, low hardness.

DM-6525

Low viscosity, suitable for bonding with extremely narrow frame.

Fast curing DM-6572

Fast curing, high modulus, ultra-high initial adhesion, high polarity material bonding.

DM-6541

Low viscosity, fast curing.

DM-6530

Fast curing, low modulus, super high initial adhesion.

DM-6536

Fast curing, high modulus, ultra-high initial adhesion, high polarity material bonding.

DM-6523

Ultra-low viscosity, short open time, can be used for LCM side edge sealant.

DM-6511

Ultra-low viscosity, short opening time, can be used on the side of the camera round light.

DM-6524

Low viscosity, short open time, fast curing.

Reactive polyurethane Double curing UV moisture curing DM-6591

It has a long open time and good light transmittance. It can be used in scenes that cannot be cured by UV and allows for secondary moisture curing. It is widely used in the field of Bluetooth headsets or LCDs that are not easy to dispense and insufficiently irradiated.

Pressure-Sensitive Type Rubber-Based Hot Melt Adhesive Product Selection

Product Line Product Series Product Category Product Name Application Characteristics
Pressure sensitive rubber base Moisture curing Label class DM-6588

General label adhesive, easy to die-cut, high initial adhesion, excellent aging resistance

DM-6589

Suitable for all kinds of low temperature applications above -10°C, easy to die cutting, excellent viscosity at room temperature, can be used for cold chain logistics labels

DM-6582

Suitable for all kinds of low temperature applications above -25°C, easy to die cutting, excellent viscosity at room temperature, can be used for cold storage labels

DM-6581

High initial tack, high stickiness, excellent resistance to plasticization, used in film labels

DM-6583

High adhesion, cold flow pressure sensitive adhesive, can be applied to tire labels

DM-6586

Medium-viscosity removable adhesive, strong adhesion to PE surface material, can be used for removable labels

Back stick type DM-6157

High-quality, high-viscosity hot-melt pressure-sensitive adhesive specially developed for TV backplane adhesives. The product has light color, low odor, excellent initial adhesion performance, good cohesion, high adhesion, and excellent high temperature resistance. Humidity is 85% and it has certain holding power at 85°C high temperature. It can pass the high temperature and high humidity test and is used for TV back panel pasting.

DM-6573

It is a reactive black polyurethane hot melt adhesive, cured with moisture. This material is pressure sensitive and provides instant high initial strength after connecting parts. It has good basic bonding performance and the opening time suitable for automatic or manual assembly line production.

DeepMaterial Data Sheet of Reactive Type and Pressure Type Sensitive Hot Melt Adhesive Product Line
Reactive Type of Hot Melt Adhesive Product Data Sheet

Reactive Type of Hot Melt Adhesive Product Data Sheet-Continued

Pressure Sensitive Type of Hot Melt Adhesive Product Data Sheet

Product Line Product Category Product Name Colour Viscosity (mPa·s)100°C Dispensing temperature( °C) Opening hours Softening Point Store/ °C /M
Pressure sensitive rubber base Label class DM-6588 Light yellow to amber 5000-8000 100 88±5 5-25/6M
DM-6589 Light yellow to amber 6000-9000 100 * 90±5 5-25/6M
DM-6582 Light yellow to amber 10000-14000 100 * 105±5 5-25/6M
DM-6581 Light yellow to amber 6000-10000 100 * 95±5 5-25/6M
DM-6583 Light yellow to amber 6500-10500 100 * 95±5 5-25/6M
DM-6586 Light yellow to amber 3000-3500 100 * 93±5 5-25/6M
Back stick DM-6157 Light yellow to amber 9000-13000 150-180 * 111±3 5-25/6M
DM-6573 Black 3500-7000 150-200 2-4 min 105±3 5-25/6M
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