When your product utilizes packer bottles (also known as ‘packers’), you need consumers to see your product in the best light possible. The type of materials you choose for manufacturing the bottle can make a world of difference, so we are here to help you compare the most common resins.

High Density Polyethylene – HDPE Plastic Bottles

As the traditional choice for packer bottles, HDPE is the most widely used resin. Among many other benefits and attributes, it is a favorite because of cost considerations, functionality, and potential for decoration.

Specifically, manufacturers should know that HDPE is:

  • Economical
  • Impact resistant
  • Good at providing a moisture barrier
  • Compatible with a wide range of products including acids and caustics
  • Supplied in FDA-approved food grade
  • Naturally translucent and flexible (and the addition of color will make HDPE opaque, but not glossy)
  • Typically a good fit for silk screen decoration

MJS Packaging can help you find just the right material for your packer bottlesThere are a few limitations with HDPE packer bottles, however. Manufacturers should first know that HDPE is not compatible with solvents. This container material should not be used with paint thinners, nail polish removers, spot removers, detergents, perfumes, and other such products.

Also, although HDPE provides good protection at below freezing temperatures, it cannot be used with products filled above 160 °F (71 °C) or with products requiring a hermetic (vacuum) seal.

Polyethylene Terephthalate – Polyester, PETE, or PET Plastic Bottles

PET bottles are commonly used for carbonated beverage, water bottles, and many food products. PET bottles lack some of the qualities of HDPE, but they come with a few unique strengths, too.

PET is largely favored as the “marketing choice” for packer bottles. HDPE does well with many contents and provides opportunities for good graphics with silk-screening, but PET bottles provide a great edge with visibility. This visibility gives consumers a good idea of what they are buying. It also reassures them that the contents will be what they expect.

For products that are sensitive to light, amber PET can be a good choice, as the amber will help block the UV rays.

Here are several other benefits as PET plastics provide:

  • Very good barrier properties for liquids like alcohol and essential oils
  • Generally good chemical resistance (although acetones and ketones will attack PET)
  • A high degree of impact resistance
  • Tensile strength

The orienting process for PET plastic bottles serves to improve gas and moisture barrier properties and impact strength. However, it is important to note that PET plastic bottles do not provide resistance to very high temperature applications. The maximum recommended temperature is 200 °F (93 °C).

What Material Should You Choose for Your Packer Bottles?

Each plastic bottle type can be a good match for your product under the right circumstances. To talk through and get the proper consultation for your product, contact us today to start a conversation with one of our packaging specialists.

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