Metal bond between the abrasive grains and between the grains a metal substrate. Metal bond systems are used mainly for superabrasive or tungsten carbide grit products. Three metal bond types are sintered, MSL and electroplated metal bond systems. Sintered metal bond systems are used when a thicker layer of superabrasive is required. Metal single layer (MSL) wheels consists of a specialized braze layer that forms a single layer of superabrasive and bond. The electroplated bond system is used to produce fine grit superabrasive products. 

  

Resin / Plastic Bonded abrasive product with a resin, resinoid or plastic bond system between the abrasive grains.

 

Rubber Bonded abrasive product with a rubber or elastomer bond system between the abrasive grains.

   

Shellac Bonded abrasive product with a shellac bond system between the abrasive grains.

 

Silicate / Oxychloride Bonded abrasive product with a bond system using a silicate, magnesium oxychloride, magnesite or Sorel cement. These low strength bonds keep heat generation to a minimum, but may lack the life and durability of vitrified or resin bonded wheels. The chloride in the oxychloride may provide a grinding aid action.

 

Vitrified Bonded abrasive product with a vitrified or glass bond system between the abrasive grains.

 

Electroplating grinding wheel can be easily distinguishable. Its appearance is different from other grinding wheels. The abrasive is attached to the grinding wheel by metal. Due to the characteristics of this process, it can only adhere to a thin layer of abrasive. But it keeps good shape and edge, no need to fix it.