M87 UV ink Primer

UV adhesion promoter for metal
UV primer for metals
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M87 is an adhesion promoter for use with UV inks and LED curable inks when printing on metals, aluminum, stainless steel, copper, coated metals, and other hard-to-print substrates. The M87 is also an excellent UV adhesion promoter for melamine coated products.

This UV Adhesion promoter for metal helps UV inkjet ink adhesion onto stainless steel, coated metals, aluminum, iron, copper, Melamine (Formica) and acrylics. The M87 digital primer helps UV ink stick permanently to metal and coated aluminum substrates. This UV ink adhesion promoter helps increases productivity. Additionally, the M87 is widely used as UV adhesion promoter for printing aluminum cans.

The Natron M87 Adhesion Promoter is the first choice for coated, painted surfaces, and bare metals. This promoter works well with all types of inks, including UV, UVLED, and solvent-based inks. Additionally, it works on a wide variety of other materials, such as acrylic and melamine. Learn more about metal priming solutions.

What is the purpose of an adhesion promoter?

Adhesion promoters, also known as surface pre-treatments, are chemicals or substances that enhance the bonding properties between two surfaces. These bonding agents work by modifying the surface properties, thereby making it possible for inks, coatings, paints, or adhesives to bond to the material. In summary, adhesion promoters enable inks, coatings, adhesives, or paints to stick to a surface by increasing the strength and durability of the bond.

What is the adhesion promoter for UV and UV LED inks?

The M87 is an example of an adhesion promoter that is useful when printing with UV and UV inkjet inks that are difficult to bond to materials like certain stainless steel, melamine, coated metals, and acrylics.

Ink primer

Natron M87 metal primer improves UV inkjet ink adhesion to all stainless steel items and other coated metals. This adhesion promoter for metal strengthens  the bond between UV printing ink and the metal substrate, primarily stainless steel. Once cured, the M87 UV Adhesion primer for stainless steel drastically improves the bonding and durability of UV prints made on metal.

This M87 Primer for aluminum beverage cans helps digital UV ink adhesion on metal using any type of UV printing inks. This is the ultimate UV inkjet inks priming solution for stainless steel items.

This UV inkjet primer works exceptionally well with all OEM inks including Inkcups S1 UV Inkjet Ink, Vivid White UV Curable Ink, and Mimaki UV Inks including LH-100 hard ink and many more UV inkjet inks.

A stainless steel surface molecular activator is scientifically formulated to actively transform the micro-structure of stainless steel surfaces to create permanent bonding.

This metal UV adhesion promoter creates permanent bonding through the use of nano-scale materials, allowing bonding on virtually every type of metal surface. Both stainless steel and coated metals, aluminum are common substrates that are impossible to print. Examples of stainless steel applications are Stainless Steel Tumblers, Stainless Steel vacuum Insulated Water Bottles, Stainless Steel stemless Wine Glasses.

For traditional printing UVMK and MG Series ink for screen and pad printing are ideal to print on all metal substrates. However, due to stainless steel manufacturing process, printing is challenging compared to most substrates.

What is stainless steel?

According to Wikipedia Stainless steel is a group of iron-based alloys that contain a minimum of approximately 11% chromium. This composition prevents the iron from rusting and also provides heat-resistant properties.

Stainless steel’s resistance to rusting results from the presence of chromium in the alloy, which forms a passive film that protects the underlying material from corrosion attack, and can self-heal in the presence of oxygen. In addition, corrosion resistance can be increased further, by:

  • increasing the chromium content to levels above 11%;
  • addition of 8% or higher amounts of nickel; and
  • addition of molybdenum.

The addition of nitrogen also improves resistance to pitting corrosion and increases mechanical strength. Thus, there are numerous grades of stainless steel with varying chromium and molybdenum contents to suit the environment the alloy must endure. Learn more about stainless steel manufacturing.

What makes metal impossible to print with UV ink?

Stainless steel is an extremely difficult material to print using UV inkjet inks, due to its very smooth surface. Any type of ink does not adhere on stainless steel and coated metals.  Most durable UV inks have a problem with adhesion.

In addition, the manufacturing of stainless steel and coated metal involves adding chromium which creates self healing properties to metal in the presence of oxygen. This makes printing on stainless steel virtually impossible to print.

Preparing metal surfaces for inkjet printing

Stainless steel should never be painted unless it has first been abraded with a galvanized metal-etching primer.  It prepares the surface of the metal, which allows digital UV inkjet ink to adhere onto the metal surface. No other type of primer will promote adequate adhesion. Never paint over an un-primed stainless-steel surface, or the finish will chip and peel soon after application.

As a result, Boston Industrial Solutions, developed the M87 Stainless steel UV adhesion promoter.

Characteristics of  metals.

Characteristics of stainless steel are moderate corrosion resistance, are not susceptible to stress corrosion, magnetic, cannot be hardened by heat treatment. Other uses of stainless steel include annealed condition, and have a poor weld-ability for most grades. This latter characteristic also makes its difficult for UV inkjet inks to bond

Primer for aluminum

Additionally, the M87 Primer for stainless steel from Boston Industrial solutions works on all metal  substrates. This primer will  100% work on any metal substrate. We also make silicone adhesion promoters for aluminum and other metals.

Learn more about the Natron Primers.

The Natron M87 Primer uses:

  • Cleans the metal surface for printing
  • Aids UV inkjet ink adhesion onto stainless steel, raw metals, coated metals, and formica substrates
  • – Also works well with UV Screen printing or pad printing inks.


  • 1Liter (~Qt)

Have questions about M87 UV inkjet Primer?

Abrasion resistance

The M87 inkjet primer aids UV inkjet ink adhesion on tough to print stainless steel substrates. This primer has a strong bond to glass, metals, and plastic substrates.  When applied, this primer has strong scratch resistance.

HD prints

This metal primer improves the color vibrancy on printed substrates.

Compliant & certifications

This UV ink primer for metal substrates is non-toxic, free from heavy metals, and phthalates. This adhesion primer is perfect for printing on promotional products items.

A primer unlike any other!

How to use the Natron™ M87 metal ink primer

The first step is to clean the metal surface. Next, clean metal surface with alcohol and fresh paper towels until dry.  Make sure metal 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 M87 stainless steel 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 with UV inkjet inks

Compliance, Certifications and Resources

M87 metal UV ink primer and the Environment

The M87 UV ink primer brings sustainability to digital printing industry. Additionally, it is does not contain heavy metals. This inkjet primer is Eco-sustainable meaning, it does not contain:

  • Alogens
  • Bisphenol A (BPA)
  • Phthalates
  • Animal origin ingredients
  • Aromatic hydrocarbons
  • Latex
  • Cyclohexanone
  • Persistent organic pollutants

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