Chemical Resistance

Testing Chemical Resistance of a Material

A sample of the material (usually 4”x6”) is laid on a flat surface, making sure it is smooth without creases or wrinkles. A cotton swab is saturated with the chemical to be used for the test and rubbed in a back-in-forth motion with light pressure. Each stroke is about 3”. The standard chemicals we test with include water, Formula 409, WD-40, non-acetone nail polish remover, and isopropyl alcohol. To report our results, we count the number of strokes the material can handle before failure; that is before the coating begins to smear, lighten, or transfer to the swab. This number of strokes is recorded and compared to our acceptable limit based on the intended application/end-use for the material.

Testing Chemical Resistance of an Ink/Toner/Thermal Transfer Ribbon

Before testing, several labels are printed using the ink, toner or thermal transfer ribbon (TTR) in question- usually blocks of pure cyan, magenta, yellow, and black as shown below [reference a picture]. The sample is laid on a flat surface, making sure it is smooth without creases or wrinkles. A cotton swab is saturated with the chemical to be used for the test and rubbed in a back-in-forth motion with light pressure. Each stroke is about 3”. The standard chemicals we test with include water, Formula 409, WD-49, non-acetone nail polish remover, and isopropyl alcohol. To report our results, we count the number of strokes the media can handle before failure; that is before it begins to smear, lighten, or transfer to the swab. This number of strokes is recorded and compared to our acceptable limit based on the intended application/end-use for the media.

We follow ASTM International Designation F2250 – 03: Standard Practice for Evaluation of Chemical Resistance of Printed Inks and Coatings on Flexible Packaging Materials as a guideline for our chemical resistance tests.

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A Message from our CEO

In an effort to keep all our customers informed, we want to share with you the following updates.

We are committed to keeping our employees, customers, and communities safe. In the wake of this pandemic, we took swift action to mobilize a significant number of our global team to remote working arrangements while enhancing our cleaning procedures and securing our production facilities to prevent the spread of the virus COVID-19.

As we continue to work through this pandemic, our core values have shone through, and we remain operational and dedicated to meeting the expectations and needs of our customers. Very early on, we increased our inventories, and we are in regular contact with our suppliers to monitor their status. We have maintained a high level of production, and our supply chains are meeting our requirements. However, we do prioritize firm orders above forecasts. Because this is a very fluid situation, we encourage you to make sure you have orders in place with us to carry you through these unusual times.

We will continue to keep you updated as this situation evolves. Meanwhile, stay safe and take care.

Sincerely,

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Gregory A. Woods
President & CEO