PP3 UV Adhesion Promoter

Pad printed airpod
inkjet primer for plastics

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Natron® PP3 inkjet primer for plastics is a special primer formulated to guarantee printing ink adhesion on difficult-to-print low surface energy plastics such as polypropylene (PP), polyethylene (PE), Polyacetal (POM), Nylon, EPT rubber, acetal, EVA (ethylene vinyl acetate) and powder-coated substrates. PP3 is an adhesion promoter, anti-static agent, and cleaner designed for use with UV and LED curable inks on plastic substrates.

Both Polypropylene and Polyethylene are common plastics that have low surface energy making them impossible for great ink adhesion. This plastic primer  increases the plastics surface energy, which in turn improves the ink-substrate bond.

270 Hard and 314 Series UV and LED curable inkjet inks are ideal for printing on plastics. However, there are some plastics that are more challenging than others. These are low energy plastics according to finecal article “How to Bond Low Surface Energy (LSE) Plastics.” This low surface energy property inhibits an ink’s ability to properly ‘wet out’ or bond to the plastic surface. This of course causes problems with many plastic inks leading to weak adhesion or failure of the ink to adhere at all onto the plastic substrate. For this reason, you need Natron™ pp3 inkjet primer for plastics.

To learn more about plastics check out this video by National Geographic.

Characteristics of Low surface energy plastics, or LSE plastics

They are generally glossy, smooth and have a low melting point so they’re easy to process, even at high volumes, and they’re low-density, which helps with light-weighting. Because low surface energy is the primary characteristic of this group, they’re all more difficult to bond.

Inkjet primer for plastics primer

Additionally, the inkjet primer for plastics from Boston Industrial solutions works with all LSE plastic substrates. This primer will  will 100% work on any plastic substrate.

The Natron PP3 Plastic Primer is used to:

  • Reduces product surface tension for better bond
  • Guarantee ink adhesion polypropylene & polyethylene
  • It is also perfect for screen printing or pad printing applications

The PP3 inkjet Primer for plastics comes in several sizes. We created this knowing that different customers have different needs.

Check out Priming is the solution article here

Using the Natron™ Polypropylene adhesive primer

Lastly, TP Series is an all purpose ink for pad and screen printing on plastics. With the primer, the printed surface is enhanced by this advanced colorless plastic primer. The primer cleans the surface, leaving a shinny film. This prepares the substrate to receive the ink.

Learn more about printing pre-treatment methods  and UV ink primers for inkjet printing

Another substrate that is a challenge to print is glass. Learn more about G1 Glass primer.

Have questions about PP3 UV Adhesion Promoter?

Fast drying

This primer delivers fast drying time, which reduces the time from application to printing. This helps increase productivity.

Abrasion resistance

The PP3 primer increase the bond between plastics and UV or UV LED inks, which gives excellent abrasion resistance.

Compliant & certifications

The PP3 inkjet primer is non-toxic, free from heavy metals, and phthalates. This ink is perfect for printing on promotional products, industrial applications, and consumer products.

How to use PP3 Adhesion Promoter

Natron PP3 inkjet primer is an adhesion promoter, anti-static, and cleaner for use with UV and LED curable inks when printing on plastic substrates. Regardless of the inks, this is an excellent primer to use with your UV and LED flatbed inkjet printers. The PP3 primer also removes fingerprints and oils from the printed surface area.

Required supplies:

PPE, a lint-free cloth, and a spray bottle (optional).

Application Instructions for UV and LED Wipe on Inkjet Primer:

  • Wear personal protective equipment (PPE). Nitrile gloves and safety glasses are recommended.
  • Work in a well-ventilated area.
  • This primer can be wiped on or sprayed onto the substrate. If you choose to spray on the substrate, transfer PP3 to a spray bottle.
  • Wet the lint free towel and wipe on the substrate. If spraying, spray the PP3 inkjet primer for plastics onto the substrates and wipe off with a clean lint free towel.
  • Print the image after wiping it with the primer using UV or LED curable ink.

PP3 primer and the Environment

The PP3 Adhesion promoter is an Eco-sustainable primer meaning. It does not contain:

  • Alogens
  • Aromatic hydrocarbons
  • Cyclohexanone
  • G-B ester
  • Melamine
  • Persistent organic pollutants
  • Animal origin ingredients
  • Bisphenol A (BPA)
  • Formaldehyde
  • Latex
  • PAH
  • Phthalates

Frequently Asked Questions

Simply use a primer to physically alter the material’s surface energy to improve and increase UV adhesion. Boston Industrial Solutions, Inc. offers several UV adhesion primers for plastics.

Adhesion promoter is another name for plastic primer. These terms are used interchangeably. To improve and optimize the anchoring of UV inkjet ink to a substrate, you will need to apply an adhesion promoter or plastic primer.

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