Basic knowledge of Gasket. Index:- Basic Definition of Gasket. Purpose of Gasket Used. Types of Gasket. Spiral wound Gasket Kammprofile Gasket Metallic - Ring Gasket or RTJ Gasket Application of Gasket What is common Gasket Materials ASME Code of Gasket. Definition Of Gaskets. A gasket is a common term used to describe any seal or grommet that holds two things together. You can make gaskets from rubber, plastic, metal, and other materials. A gasket is mechanical seal that fills the space between two objectives, g enerally to prevent leakage between the two objectives while under compression. A gasket is a malleable material, which can be either soft or hard,t hat is inserted b etween two parts to prevent leakage between that joint. Pressure is applied by bolting or using a clamp to compress the gasket firmly in place. Gaskets are made from all different types of materials, depending on the temperature, pressure or fluid characteristics of the process. Purpose of Gasket Used:-