G1 Glass Adhesion Promoter

G1 UV inkjet primer after application
G1 Glass UV ink adhesion -1024x1024
Printed glass primer
Tile UV adhesion promoter - ink for printing ceramics
UV adhesion promoter for tile and ceramics
UV Primer for tritan plastics

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Natron® G1 UV adhesion promoter for glass helps UV curable ink stick to glass, tiles, ceramics, and tritan plastic. Once cured, the G1 glass primer drastically improves the bonding and durability of UV prints made on glass.

This special UV ink adhesion promoter (glass primer for uv printing) guarantees UV and UV-LED printing ink adhesion on difficult-to-print glass substrates.

Glass Surface molecular activator/primer for UV Inkjet Printing, urethane-based coatings and adhesives is scientifically formulated to actively transform the micro-structure of glass surfaces to create permanent bonding. This glass primer for UV inkjet printing creates  permanent bonding through the use of nano-scale materials, allowing bonding on virtually every type of glass surface. Both glass and hard plastics are common substrates that are impossible to print.

Solvent based MG Series ink for screen and pad printing on glass does not require a primer to achieve permanent adhesion on glass. This is different compared to UV inks. Due to glass manufacturing process, printing on glass with UV inks is more challenging than most substrates.

Glass is an extremely difficult material to process, due to its very smooth surface, even the most durable UV inks have a problem with adhesion. In addition, the manufacturing of glass involves fritting which creates a unique glass structure. After the unique glass structure, the second most difficult problem is proper cleaning and glass preparation for printing.

Fritted Glass

Also fritted glass is a mixture of of silica and fluxes fused at high temperatures that makes glass according to finical article “scratching the surface” This property inhibits UV inkjet ink’s ability to ‘wet out’ or bond to the glass surface. This of course causes problems with many glass printing inks and adhesives. This causes weak adhesion or failure of the ink to adhere at all onto the plastic substrate. As a result, Boston Industrial Solutions, developed the Natron™ G1 Glass primer.

Characteristics of  fritted glass.

Frit is a mixture of silica and fluxes fused at high temperatures that makes glass. Because low surface energy is the primary characteristic of this group, they’re all more difficult to bond.

UV/LED Inkjet printing inks

Additionally, the G1 UV adhesion promoter for tiles from Boston Industrial solutions works with all glass substrates. This primer will  will 100% work on any glass substrate.

Learn more about the UV ink Primers.


  • Reduces product surface tension for better bond using nano-particles
  • Guarantee UV inkjet ink adhesion onto any glass
  • – UV inkjet print, Screen print or pad print any ink on any glass

How to Use Glass inkjet primer

The first step is to clean the glass surface with 70/30 isopropyl rubbing alcohol. Then scrub the entire glass surface tor remove all possible impurities that could be impregnated on the glass surface. Next, clean glass surface with alcohol and fresh paper towels until dry.  Make sure glass surface has a squeaky clean feel to the surface while being wiped dry.

  • – Wipe off / Remove dust, oil and other dirt from the substrate (glass).
  • – Wet a clean, non-woven (lint free) cloth with the the G1 Glass primer for UV inkjet inks.
  • – Wipe substrate with the wet lint-free towel.
  • – Allow a couple of minutes for the solvent to completely evaporate.
  • – Print the substrate or apply the adhesive onto substrate

Learn more about glass printing methods

Using the Natron G1 UV Adhesion promoter for digital printing on glass, tiles, and tritan plastics

Lastly, Natron MG – Metal, Glass & Ceramics ink is the ideal ink for pad printing and screen printing on glass. With the primer, the printed surface is enhanced by the colorless plastic primer. The primer cleans the surface, leaving a shinny film. This prepares the substrate to receive the ink.

The Natron G1 primer works on glass, Dense Plastics, and Carbon Fiber as well.

This primer is powerful and improves UV inkjet ink, solvent ink, and water based ink adhesion on glass.

  • Promotes adhesion to Glass, Ceramics/ Tiles, Rigid plastics/ Carbon fiber, Phenolics (Bakelite), Melamine (Formica).

UV ink adhesion promoter for glass drinkware

The Natron G1 glass primer for UV ink printing, just like our Natron PP primer for plastics is very powerful. By applying a small amount of this UV ink adhesion promoter to glass, UV ink adhesion improves instantly and significantly.

Lastly, read more about Pretreatment methods and why priming is the solution for printing on glass with UV inks.




  • 1.0Liter

Have questions about G1 Glass inkjet Primer?

Completely invisible after application

After application, you cant see it! But it is there doing its magic!

Fast drying

The Natron G1 Glass UV ink adhesion promoter dries quickly once applied. The primed glass, can be printed in minutes once applied.

Superior resistance to chemicals

Superior resistance to chemicals such as alcohol, acids, gasoline, and alkali make it the ideal choice for food packaging, toys, industrial and medical applications.

Abrasion resistance

The G1 primer has a strong bond to glass, tiles, and tritan substrates. This primer offers strong scratch resistance.

Compliant & certifications

The G1 Glass adhesion primer is also non-toxic, free from heavy metals, high density, high opacity inks. This ink is perfect for printing on food packaging and toys.

Invisible to the eye. Wow, for print!

Once applied, this UV ink adhesion promoter is completely invisible on the glass.


Pad printing and digital printing are two impressive solutions for printing on a range of products from drinkware to silicone to apparel. Learn more about the different printing applications these processes achieve.

How to use Natron G1 Glass Adhesion Promoter

It’s very easy to use the Natron G1 Primer for glass. The first step is to clean the surface where the printing will be done. Then, using a lint free cloth, apply a thin layer of primer on the glass, wait for a minute or two for the primer to evaporate and then print. Do not wipe the primed surface  after priming. This will cause static.

G1 Glalss primer and the Environment

The G1 UV adhesion promoter is classified as non-toxic. It does not contain any heavy metals. Additionally, it is Eco-sustainable meaning, it does not contain:

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

Frequently Asked Questions

UV inkjet inks adhere well to many substrates, and there is an increasing demand to print on luxury materials for interior decoration, including real glass. To print on glass with UV printer, you need UV printer inkjet primer for glass. A primer is a coating that is applied to a substrate to bridge performance between the substrate itself and the ink that is printed on it.

A primer is a coating that is applied to a substrate to bridge performance between the substrate itself and the ink that is printed on it. A primer is a very thin fluid that ensures the colorants stay in place so the printed media delivers the expected color and print quality.

UV inkjet inks adhere well to many substrates, including glass. Glass is an excellent material used to make luxury materials for interior decoration and many promotional products. Therefore, it is important to have permanent, long-lasting imprints on glass. To get UV ink to stick to glass, a UV ink adhesion promoter is required, such as the Natron G1 UV ink glass promoter for the Natron Fi Primer.

Natron G1, M87, Fi, M74F, PP, etc. are adhesion promoters for use with UV and LED curable inks when printing on glass, metal, aluminum, acrylics, HDPE, coroplast, polystyrene, and other hard-to-print substrates. All Natron primers are perfect for both interior and exterior applications.

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