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Squeegee Rubber

A brief description of Squeegee:

Squeegee Rubber is used to force the inks through the screen and help achieve an even print, it is important factors in getting sharp, clear Prints.

A sharp squeegee blade will control ink flow through fine, detaile stencils increasing resolution and overall print qualiy.

A blunt or rounded blade edge will cause the ink to smear because it generally pushes more ink through the mesh.

Some squeegee blades are actually made round or 'ball nosed'. For most standard textile screen printing applications a rectangular cut edge squeegee is best.

Squeegee Function:

1.Forcing the ink into the mesh

2.Keeping the mesh in contact with the substrate

3.Adapting the mesh to the surface of the substrate

4.Removing excess ink from the mesh

All of these functions are influenced, to a greater or lesser degree, by the squeegee durometer(hardness), height(free height), profile,angle,length,speed,pressure,and edge condition.

Squeegee Durometer:

The durometer of the squeegee is the measure of the squeegee's hardness on an arbitrary scales known as the A Scale(frequently referred to as the Shore A Scale).

The hardness of squeegee material usually falls between 50 and 90 with 50 being the softest and 90 being the hardest.

Polyurethane squeegees are frequently color-coded with a specific color representing a specific durometer, the obvious purpose being to facilitate the identification of a squeegee's hardness without the necessity of having a durometer gauge. Unfortunately, there is no standardization of colors trhoughout the industry and each squeegee manufacturer uses its own color code scheme.