Medium Temperature - Medium Expansion Enamels for Copper, Gold, Silver, Low Carbon Steel & Metal Clay - 2oz jar

Normal firing temperature range: 1400-1500ºF
Coefficient of expansion range: 258-360 cubic expansion

Mesh size is an indicator of glass particle size. The mesh number indicates the number of openings in a linear inch in a standard wire mesh screen. 80 Mesh would be 80 openings per linear inch. 6 Mesh would be six openings per linear inch. A double mesh number such as 80/200 describes the glass particle sizes which pass through an 80 mesh screen, but stay on top of a 200 mesh screen.

80 Mesh enamel is the standard mesh size that Thompson sells. It is the mesh size used for most enameling procedures. It is glass that has been ground to a particle size slightly finer than "granular sugar".

6/20 Mesh enamels are particles that have an average diameter of about 1/16" to 1/8". This particle size is ideal for bead making on copper tubing, fired with a torch.

100 Mesh is particles that will pass through a standard 100 mesh wire screen (100 openings per linear inch). This mesh size is slightly finer than 80 mesh.

150 Mesh is particles that will pass through a standard 150 mesh wire screen (150 openings per linear inch). This mesh size is finer than 100 mesh.

200 Mesh is particles that will pass through a standard 200 mesh wire screen (200 openings per linear inch). This mesh size is finer than 150 mesh.

325 Mesh is particles that will pass through a standard 325 mesh wire screen (325 openings per linear inch). This mesh size is finer than 200 mesh and resembles "flour" in particle size.