What Is The COF Test And For What Purpose Should You Conduct It?

What is the COF test and for what purpose should you conduct it?

COF test

When it comes to plastic film, one of the most important properties to consider is friction. The lower the friction, the easier it is for the film to slide. This can be crucial in applications where the film needs to move smoothly, such as in packaging or labeling. At Presto, we have a coefficient of friction tester that can help you to determine the sliding friction of your plastic films. This is considered to be one of the highly efficient lab testing equipment that will help you to evaluate the stackability of plastic films with ease.

This coefficient of friction testing equipment is a versatile testing instrument that can be used to determine the frictional properties of materials. When the force will be applied to this testing instrument, then the material will be tested against the force measured. Here we are going to discuss brief information about the co-efficient of friction tester and for what purpose it will be used.

What is the coefficient of friction test and why you should conduct it?

In the packaging industry, the use of packaging films and laminates has been increased, and when these films will slide over each other, then it may cause product damage during shipping and transportation. To solve this problem, it is important to test the sliding friction of these films to determine their resistance to the sliding of different materials over each other.

Therefore, taking the COF test is very important in determining the sliding friction of several materials like lubricants, household items, etc. By conducting a COF test, it will be easy for you to determine the frictional characteristics of the materials. Once you determine the stacking ability of plastic films, then you will easily be able to prevent the accidents that may cause due to sliding of films during transportation and shipping. You can also read about the role of a co-efficient of friction tester in the plastic industry.

Below we have listed the features of this lab testing equipment.

Features of Presto co-efficient of friction tester

When you invest in Presto co-efficient of friction tester then you will be able to get an accurate value of co-efficient of friction. This lab testing instrument will play a crucial role in testing the force at which the material will slide over each other and determine the angle of inclination. If the plastic sheets, laminates, or other related materials have uneven thickness then it may cause poor strength. Testing the sliding friction of these materials is important to make sure that the right products will be delivered to your customers. So, if you are a packaging product manufacturer then you can easily use this lab testing instrument in your industry.

Below we have listed the features of the Presto COF tester.

  • Microprocessor-based display for accurate test results
  • Display for Dynamic and Kinetic Friction
  • Memory to hold up to 9 test reading
  • Highly accurate test results under sliding friction.
  • Steel with Glass Mounting as Sample Mounting Surface
  • Slider Block for performing tests – Sample to Sample, glass or metal
  • No slippage in case specimen is tightened uniformly using fly screws without any loops.
  • Bright LED display
  • Feather touch controls
  • ** Available in the computerized model also.


  • ASTM D 618, ASTM D 883, BS 2782, and ASTM D 1894

Technical Specifications of Presto COF Tester:

  • Co-efficient of friction reveals the degree of transgression a sheet will successfully suffer, without affecting the labels and prints
  • Maximum Capacity of Load Cell: 3 Kgf
  • Display: Digital LED Display
  • Device Accuracy: ± 1% within the entire range
  • Resolution /Least Count: 0.1 gm
  • Power: 220V, Single phase, 50 Hz
  • Speed: 150 ± 30 mm/min
  • Motor: 1/4 HP Single Phase, 1440 rpm

With these features and technical specifications, it will be easy for you to determine the COF of laminates, plastic films, etc.

Presto is a leading manufacturer of lab testing instruments and provides you with a high range of testing equipment at the best and most affordable prices. The coefficient of friction tester will help you detect the exact COF of packaging films and other related materials. To conduct a virtual demo for this lab testing instrument, give us a call at +91-9210903903 or email us at info@prestogroup.com. Our team of technical experts will consult you regarding all your queries.