Coefficient of friction - COF Testing

What is coefficient of friction (COF) ?

Friction Peel

The friction coefficient, also known as COF, is a number that indicates the degree of friction between two surfaces.

Static versus Dynamic

A distinction is made between static friction coefficient and the dynamic friction coefficient.

Static coefficient of friction

The static coefficient of friction is the ratio between the maximum friction force before the surfaces start to move in relation to each other and the normal force.

Dynamic coefficient of friction

The dynamic coefficient of friction is the ratio between the frictional force and the normal force as the surfaces move relative to each other already.

How to calculate the coefficient of friction/COF?

Friction Peel

This coefficient of friction tester(COF)/peel tester can measure static and kinetic coefficient of friction, as well as run seal strength tests, 180°peel, 90°peel and T-peel tests.

The FP-2260 also offers a tensile mode to perform lightweight tensile tests up to 10 kg (22 lbf). The small, bench-top design makes the FP-2260 lightweight, allowing it to be used in a laboratory or set up out on the production floor for offline testing as needed.

More about the Friction Peel Tester