pressure sensitive hot melt glue
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What Is Pressure Sensitive Hot Melt Glue (HMPSA)?
Pressure sensitive hot melt adhesive (HMPSA), also known as hot melt pressure sensitive adhesive or PSA hot melt glue, combines heat-activated hot melt adhesive with pressure-triggered PSA. It is applied molten onto substrates and, after cooling, forms a tacky layer that bonds instantly under light pressure. These properties make PSA hot melt glue a common choice for self-adhesive labels, packaging tapes and peel-and-stick applications.
Key Advantages:
- Cures within 3 seconds after cooling — keeps production lines fast
- High bonding strength
- Excellent peel and shear resistance
- 100% solid content formula — no solvent, no drying step
- Low odor, non-toxic composition
- Compatible with spray coating, roll coating and bead dispensing processes
HMPSA vs Water-based & Solvent-based PSA
When choosing a PSA system for labels and tapes, the decision usually comes down to line speed, solvent handling and coating cost. Here is how pressure sensitive hot melt adhesive (HMPSA) stacks up against water-based and solvent-based PSA:
| HMPSA | Water-based PSA | Solvent-based PSA | |
|---|---|---|---|
| Curing speed | Seconds after cooling (no drying) | Needs water evaporation, slow | Needs solvent evaporation, slow |
| Solvent & VOC | 100% solid, solvent-free, no VOC | Water-based, low VOC | Contains organic solvent, high VOC |
| Coating line speed | High, no drying oven needed | Limited by drying section | Limited by drying section |
| Energy & floor space | Low, compact coating line | Medium, requires drying equipment | High, requires solvent recovery and fire protection |
| Initial tack | Available right after cooling | Only after fully dried | Only after fully dried |
For coating plants that want higher line speed and solvent-free production, pressure sensitive hot melt adhesive is usually the more practical choice.
Adhesive (Shanghai) Co. Ltd. can supply HMPSA trial grades and help evaluate them on your coating line.
Great Adhesive
Innovative Technology of Pressure Sensitive Hot Melt Glue
As an industry benchmark for heat-activated bonding technology, our pressure sensitive hot melt glue (HMPSA) series developed by Adhesive (Shanghai) Co. Ltd redefines the precision and efficiency of temperature-responsive bonding. Featuring an accurate temperature-controlled bonding mechanism, this hot melt pressure sensitive adhesive delivers innovative solutions for reversible bonding and residue-free peeling, widely applied in medical devices, smart packaging and precision electronics manufacturing.
- 45℃-60℃: Temporary positioning adhesion (0.5-1.2 N/cm²)
- 70℃-90℃: Permanent bonding strength (5-8 N/cm²)
- Above 100℃: Controllable peeling mode (residual rate <0.3%)
Within the temperature range of 50°C–120°C, the adhesive layer of our PSA hot melt adhesive achieves an intelligent transition from solid state to viscous flow state in only 3 seconds, fully satisfying high-speed bonding demands for automated industrial production lines.We customize grades of hot melt pressure sensitive adhesive to match different working temperature requirements across various manufacturing sectors.
| Item | Parameter |
|---|---|
| Product Name | Hot Melt Pressure Sensitive Adhesive (HMPSA) |
| Appearance | Transparent yellow/orange solid block |
| Solid Content | 100% |
| Working Temperature Range | 45℃ – 120℃ |
| Temporary bonding strength | 0.5–1.2 N/cm² (45–60℃) |
| Permanent bonding strength | 5–8 N/cm² (70–90℃) |
| Peeling residue rate | ＜0.3% (＞100℃) |
| Application Methods | Roll coating, spray coating, dispensing |
How to Choose HMPSA by Tack, Cohesion and Peel？
HMPSA performance is mainly described by three indicators — tack, cohesion and peel. Choosing the right grade means knowing which one matters most for your product.
Tack
How fast the adhesive grabs the substrate on light contact. Prioritize it when your product must stick instantly, e.g. labels applied to rough or slightly dusty surfaces. This is where a high tack PSA hot melt glue performs best.
Cohesion
How well the adhesive layer holds together against shear force. Prioritize it for tapes under constant load or packaging tapes that must not slide or creep over time.
Peel
How much force is needed to pull the adhesive off the substrate. It decides whether the bond is permanent or removable: high peel for permanent labels, low peel for a removable HMPSA that lifts off cleanly without residue.
One thing to note: the three indicators usually trade off against each other — higher tack often means higher peel, while higher cohesion can lower tack. Tell your supplier the end use (e.g. “instant stick, but must peel off residue-free”), and the formulation can be balanced accordingly.
pressure sensitive hot melt glue Series
Application Fields of Pressure Sensitive Hot Melt Glue
- Electronic industry: Temporary fixation of flexible circuit boards (FPCs) and encapsulation of display components with pressure sensitive hot melt glue.
- Packaging field: Carton sealing and label lamination. Our hot melt pressure sensitive adhesive fits perfectly for high-speed automated production lines.
- Medical equipment: Disposable medical dressings and catheter fixation. This HMPSA meets strict biocompatibility requirements for skin-contact applications.
- Industrial manufacturing: Long-term bonding scenarios including automotive interior assembly, filter material lamination, and shoe material lamination.
Five Core Reasons to Source Pressure Sensitive Hot Melt Glue From Great-Adhesive
- Technical advantages: We hold 23 international certificates covering thermal adhesives including hot melt pressure sensitive adhesive
- Stable delivery: 3,000 square meters of domestic warehouse stock, supporting 48-hour emergency shipment
- Cost competitiveness: Vertically integrated supply chain, achieving 18%–25% comprehensive cost optimization
- Responsive service: 24/7 one-on-one support with multilingual technical consulting
- Quality risk control: $20 million product liability insurance to guarantee full-process quality protection
Custom HMPSA Formulation
Every coating line is different — substrate, line speed and end use all change what the adhesive has to deliver. Instead of a one-size formula, we adjust the HMPSA to fit your process:
- Tack / cohesion balance — more tack for instant grab on hard surfaces, or more cohesion for tapes under constant load.
- Removable ↔ permanent — peel strength tuned so labels lift off cleanly without residue, or stay firmly permanent.
- Heat resistance — keeps the bond stable in high-temperature environments or long storage.
- Coating temperature — matched to your coating equipment and heat-sensitive substrates.
Send your substrate and coating method, and we prepare lab samples for evaluation.
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Submit your requirements by email to info@great-adhesive.com, or WhatsApp +86-15618525178.
We will recommend the model and adhesive process parameters to you. After getting the delivery address, we will ship it within 7 days. When you pass the peeling force, stickiness, heat resistance and other tests, you can enjoy a 10% special discount for the first annual order.