Ceramic Coating Hardness Scale

But that s 100 quartz.

Ceramic coating hardness scale.

This doesn t mean the coating is impervious to scratches all this means is that that certain pencil will not scratch it. Now there is no way on god s green earth that a liquid ceramic coating will be as strong as a diamond. The hardness of ceramic coating. Most anyone from vehicle owners seeking ceramic coating services to detailing business owners have come across advertised hardness xh ratings from automotive coating manufacturers.

Other methods such as the vickers hardness test and rockwell scales can also be used to determine hardness but are known to cause more damage to the testing material than. This dude invented a hardness scale that measured how one mineral would damage another. Once the coating has been applied it forms a hard nano scale coating that protects and provides an ultra high gloss finish. Hardness is the resistance of a solid material for example the car paint against distortion.

Fast forward to the modern day and it has become an important yet misleading marketing tool for companies that supply vehicle protection coatings i e. Included with the ceramic coating are microfiber cloths applicator pads protective gloves and step by step detailed instructions. The mohs hardness scale starts with talc as being the softest mineral graded at 1h and moves up to diamond which is rated at 10h on this scale. Friedrich mohs was the creator of mohs so called scale of mineral hardness.

Pencil hardness measurements have been used by the coatings industry for many years to determine the hardness of clear and pigmented organic coating films. Quartz which is the primary ingredient in a nano ceramic coating is rated at 7 on the scale. Ceramic coatings claim improved hardness up to 9 or 9h. The knoop hardness test is most practical for the purpose of ceramic coating tests as only a small indentation is required to evaluate and measure a material s hardness.

Many automotive ceramic coating manufacturers feature claims of 7h 8h 9h or even 10h surface hardness. What exactly is that. A soft mineral like iron is rated slightly below 5 while diamonds are rated at 10 on this scale. The pencil is made of graphite which only rates 1 2h on the mohs scale.

Guess what it s all a pile of horse manure. The coatings industry adopted this in a reverse manner and starting using variations of standardized pencil hardness to measure their coating hardness. The pencil hardness method was originally developed by pencil manufacturers as a quality control method in the early 1900 s if two different pencils cause the same scratch damage to a coating then they are considered the same hardness simple. They use these pencils to scratch the surface to measure how resistant it is to damage.

Most automotive clear coats have a hardness of 4 6 on the scale. Other features of the nasiol zr53 ultimate include. Let s start with a little background on both pencil hardness and the infamous mohs scale. Ceramic and glass and other.

Until then minerals were not judged for hardness but on composition. He came up with this scale in 1812.