What is PO (Polyolefin) Glue? Where is it used?
PO glue is a polyolefin based hot melt adhesive. It can be used in packaging, film, lamination, furniture and special assembly applications where clean operation, process stability, flexibility and heat performance on certain surfaces are targeted. Product selection; It should be done according to the surface, line speed, open time, heat load and application temperature.
PO or polyolefin glue is a polyolefin based thermoplastic hot melt adhesive. These solvent-free and hot-applied systems are formulated to target clean operation, elasticity, process stability and high heat performance on some surfaces. The actual behavior of PO products varies depending on the product code and application surface.
What isPO glue?
PO hot melt becomes fluid with heat and forms a bond by cooling after application. Although it works with physical cooling like EVA, its polymer structure is different, so viscosity, open time, surface wetting, hardness and thermal behavior should be evaluated separately. Some PO products are developed with the goals of low odor, clear film and long open time.
The name polyolefin does not automatically imply suitability for every plastic or every film. It is not correct to choose the exact product without verifying the type of surface to be bonded, surface energy, coating and production line.
Prominent features of polyolefin structure
- Balanced flow and clean process can be targeted in high-speed lines.
- Formulations that provide advantages regarding flexibility, impact and surface movement can be found.
- It can offer suitable open time in packaging, film and lamination applications.
- Color, odor, Heat stability and viscosity vary according to product code.
These features are the starting point for product selection; final performance is determined by the surface, application amount, line temperature, pressure and cooling conditions.
Where isPO glue used?
| Alan | Expected benefit | Sample control |
|---|---|---|
| packaging and box | Clean, fast and stable closing | Carton absorbency, open time and line speed |
| Film and lamination | Eflexible film bonding | Film surface, coating and peeling |
| Furniture and panel | Proper adhesion on certain surfaces | Panel, tape and temperature compatibility |
| Custom assembly | Clean and controlled hot application | Part temperature and cooling time |
Difference with EVA and PUR
EVA can stand out as a general-purpose and economical starting option. PO can be evaluated when process cleanliness, elasticity or specific surface compatibility are prioritized. PUR, on the other hand, can stand out in applications that cure with moisture after cooling and target long-term heat/humidity resistance. These three technologies are not automatically interchangeable on the same material, machine or cost target.
When decidingselection contents in the technical information center, use current TDS/SDS documentation and actual production sample together. For product familyhot melt catalogyou can review.
App control
- Check the cleanliness, coating and surface energy of the surface.
- Apply the product's recommended temperature range at the tank, hose and nozzle level.
- Match open time with line speed.
- Apply sufficient but controlled grammage; Take samples for overflow and missing film.
- Record the peel, slip and visible joint test after cooling.
With product code, material and machine informationFrom Koçak Endüstri technical teamYou can request application-specific guidance.
What is PO (Polyolefin) Glue? Where is it used? hakkında merak edilenler
What is the difference between PO glue and EVA glue?
Both are hot melt technologies, but their polymer structures, surface compatibility, viscosity, open time and thermal behavior are different. The decision should be made based on the product code and actual surface testing.
Is PO hot melt used in packaging?
Yes, suitable formulations can be used in box, carton, film and lamination lines. Carton absorbency, line speed, open time and closing pressure should be checked.
Is PO glue resistant to high heat?
Some PO products are formulated with the goal of high thermal and process stability; However, the strength level varies depending on the product. An overall rating cannot be given without TDS and service condition testing.
Technical resources and verification
The content has been prepared in Turkish with the technical experience of Koçak Endüstri, based on the following manufacturer resources.
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