The truth about coating hardness
When it comes to all ceramic, silica and polymer silane resin coatings, this is the rating of how much they resist swirl marking and scratching. The truth about hardness with coatings is that the pencil hardness test which coating manufacturers claim to use to grade their coatings is actually not one universal standard between all pencil manufacturers. They have different standards in how they measure hardness. Because of this, it is possible that all the 9H and 10H hardness coatings may not be equal and some could be only 7H
Also having a 10H hardness coating that can resist the introduction of new swirl marks from hand washing and drying can lack flexibility and then suffer bad water spot etching due to this.
The same thing is true with foam block manufacturers, there is not one set pore per inch measurement standard between them so one brand's 100 ppi foam can be way softer than another companies 120 ppi foam
We made our coating to exceed the standard of all other coatings whilst being flexible so the chance of water spot etching and damage from bird droppings is almost zero.
Also having a 10H hardness coating that can resist the introduction of new swirl marks from hand washing and drying can lack flexibility and then suffer bad water spot etching due to this.
The same thing is true with foam block manufacturers, there is not one set pore per inch measurement standard between them so one brand's 100 ppi foam can be way softer than another companies 120 ppi foam
We made our coating to exceed the standard of all other coatings whilst being flexible so the chance of water spot etching and damage from bird droppings is almost zero.