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Bonding Low & High Density Polyethylene with Industrial Adhesives

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Bonding Low & High Density Polyethylene with Industrial Adhesives

 

What is the best adhesive for polyethylene (LDPE, HDPE, and UHMW)? Polyethylene is abbreviated as PE. Low density polyethylene is LDPE and HDPE for high-density Polyethylene.  UHMW stands for Ultra High Molecular Weight polyethylene.  Polyethylene is a thermoplastic material that can be challenging to bond.  Some form of surface preparation is needed to achieve significant bond strength on polyethylene with most adhesives.

Structural Acrylics

Permabond has developed a line of specialty acrylic adhesives for polyethylene that form strong bonds without surface treatment or primer.

Permabond TA4605, TA4610, TA4611, and TA4631

  • Bond low surface energy plastics
  • No need to flame, corona, or plasma treat surfaces
  • Easy 1:1 mix ratio
  • Non-hazardous for transport
  • Ideal for bonding a wide range of surfaces
  • Easy dispensing
  • Full cure at room temperature
  • Good chemical resistance
  • Good impact strength

adhesive for polyethylene

 

TA4605 is a fast set, it fixtures in under 10 minutes, TA4610 allows a bit more time for bonding larger surfaces. Both TA4605 and TA4610 contain microbeads to induce the ideal gap.  TA4611 was designed without the microbeads for use where a smaller gap is needed.  TA4631 is a low odor (honest virtually no odor!).

These structural acrylics adhesive for polyethylene have good impact resistance and environmental resistance.  If you require a strong HDPE glue for a rugged application, this is the best option.  Download the flyer!

 

Other adhesives for polyethylene include cyanoacrylate, epoxy, and UV curable adhesives

Cyanoacrylate adhesives can be used along with primer Permabond POP.  Cyanoacrylates set almost instantly and provide good adhesion to HDPE provided the surface is pre-treated with Permabond POP primer.  The bonds have good resistance to non-polar solvents but do not fair as well with polar solvents.

Providing some form of surface treatment such as flame, corona, or plasma treatment used epoxy and UV grades can be tested.  Flexible epoxy such as Permabond ET515 is preferred.

 

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