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How to bond polypropylene

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How to bond polypropylene

How to bond polypropylene

Polypropylene can be difficult to bond with standard adhesives.  Permabond developed the Permabond TA46XX range to bond untreated polyolefin surfaces. These adhesives are ideal for bonding polypropylene and polyethylene – without the need to carry out costly surface pre-treatment
before bonding. They can also be used to bond polyolefins to a wide variety of other substrate materials.

Permabond TA4600 Series Features and Benefits

  • Bond low surface energy plastics
  • No need to flame, corona, or plasma treat surfaces before
    bonding = cost and process saving
  • Easy 1:1 mix ratio – can be manually applied or used with automatic dispensing equipment
  • Non-hazardous for transport = easier shipping and storage
  • Ideal for bonding a wide range of surfaces
  • Cartridges with static mix nozzles for ease of dispensing – bulk available on request
  • Full cure at room temperature
  • Good chemical resistance
  • Good impact strength

What is polypropylene – PP- Polypropylene is a polyolefin plastic material that is challenging to bond, thanks to its low surface energy. Its use is widespread due to its versatility and low-cost.

plastic bonding
Polypropylene Lap Shears Bonded with TA4610 | The PP Stretches and the bond remains!

Permabond TA4610 forms bonds that cause the polypropylene to stretch and fail before the bond breaks.

TA46xx chart 032921

How to bond polypropylene – Tips for surface preparation & bonding:

For untreated polypropylene there are several options:
a) bond untreated – select Permabond TA4605, TA4610, TA4611, or TA4631 structural acrylic products, these are developed especially for low-surface energy polyolefins.  Download the flyer!
b) prime with Permabond POP and use with cyanoacrylate adhesive only
(other adhesives are not compatible with POP).
c) flame, corona or plasma treat the surface in order to use other adhesive types.

For more information on which adhesive type or product is ideal for your application, please contact Permabond technical support.

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