Bonding process

1. Vitrified bonding: It is a clay bond base material 'Feldspar' denoted by 'V
2. Silicate bonding: Base materials -silicate of soda or waste glass. it is denoted by letter 'S'

3.Shellac bonding: Abrasive grains are first coated with shellac by being mixed in a steam heated container

• shellac bonded wheels are also known as elastic bonded wheels
• it is denoted by the letter 'E'

4. Rubber bonding: bonding material-pure rubber with some amount of sulpher which act as vulcanizing agent used as anagging wheels in foundries.

5. Bakelite or Resinoid bonding: Abrasive grains are mixed with powdered synthetic resin and a liquid solvent which dissolves resin.

6.Oxy chloride bonding: prepared by mixing abrasive grains with oxides and chlorides of magnesium.
denoted by the letter 'o'