General Motors GMN3943

Introducing General Motors GMN3943 – Industrial Physics

General Motors GMN3943 is an international scratch resistance testing standard from the General Motors automotive company.  

The American automobile manufacturer produces a set of stringent automotive testing standards that govern the way that it checks every aspect of the vehicles it manufactures, including plastic components. 

The GMN3943 testing standard describes a scratch testing device and procedure for evaluation of the scratch and mar resistance of plastics. The scratch tester uses five metal tips, variably loaded, resting normal to the surface of a molded-in-color plastic test plaque, which are dragged across the desired test area. 

We’ve been in the driving seat of automotive testing for more than 50 years and work with many of the major automotive companies. You can rely on our test and measurement devices to help you overtake the competition. So that you can be confident that every airbag, bonnet, chassis, brake or paint job performs to consistently high standards. 

Our GMN3943 scratch testing devices

So, how can Industrial Physics improve your GMN3943 scratch resistance testing? 

TQC Sheen Taber Multi-finger Scratch MAR tester
The TABER® Multi-Finger Scratch / Mar Tester is used to measure the relative resistance or susceptibility of a material surface to scratching, marring, gouging, scraping, engraving and other similar physical damage that can’t be classified as ordinary wear. 

Our scratch tester includes a pneumatically driven, move-able platform to which the test specimen is mounted. The platform moves in a linear fashion, and is operated by a control knob for single or multiple pass testing. An electronic timer displays the rate of speed, which can be controlled by reducing or increasing air pressure.

Overtake the competition with Industrial Physics 

Industrial Physics has been making devices and accessories to support automotive testing for many years. We like to share the insight we’ve gained with our customers.  

For tips on making the most of your automotive inspection, check out the Industrial Physics guide to automotive testing. Then you could read about these testing innovations to tackle challenges in the automotive industry. 

If you’d like to find out more about plastic testing or any other aspect of your automotive testing, just get in touch! 

 Your global test and measurement partner for General Motors GMN3943