Every product that KISHO has successfully developed will receive professional testing by the Japan Paint Association and then push it into the market.
Japanese Paint Association tests the hardness of products as follows：
It infiltrates the test plate in the glass coating product, waiting for the coating product on the test plate to naturally crystallize. After the product is hardened, it is tested for its hardness. Each of our products can reach a hardness of more than 6H. This is the true hardness value of the crystal.