What is rubber A and rubber B used in inner gaskets?
As tolerance for the contents is one of the most important features of gaskets (also called “ring gaskets”) used in the outer part, the type of gasket is chosen depending on the purpose of use. There are rubber A and rubber B in the stem rubber (inner gasket). These rubbers should be properly used depending on the type of content. There are also rubbers with various grades that have different sealing effects. Rubber A and rubber B are the names of the rubbers used in Mitani products describing a different grade. The physical characteristics of the contents are often trade secrets and companies do not like to disclose them. Mitani will offer appropriate specifications including the type of rubber after receiving information on your planned product (we promise confidentiality) and taking into consideration the characteristics and appropriate range of various rubbers. We may change the ratio of the vapor tap size and the lower orifice size for the purpose of adjusting a spraying feature.
