The manufacture of Sintered Flux involves mixing dry ingredients and then using a liquid binder such as sodium or potassium silicate to bind these ingredients together. After the bonding mixture is granulated, the granules are baked in a low temperature furnace. After the granules are dried, the granules are broken up using a sieve to obtain the desired particle size. The granules are then packaged for shipping.

The advantages of Sintered Flux include:

Deoxidizers are present in bonding fluxes to prevent rust and scale. These deoxidizers also help prevent the weld from becoming porous.

Alloys can be added to Sintered Flux. Alloying elements can improve the chemical and mechanical properties of the flux.

Sintered Flux allows for a thicker flux layer to be formed when welding.

Sintered Flux can be identified by color.

Sintered Flux generally has better stripping properties than molten flux.

There are at least two disadvantages to using Sintered Flux. They are:

They absorb moisture.

They can change in composition due to segregation or loss of fines.