Datum introduced Fine Grain Stainless Steel to the stencil market in 2007. Fast forward 15 years and we continue to innovate and develop new products, ensuring we remain market leaders in the Surface Mount technology (SMT) industry.

NEW Datum Fine Grain is a precision cold rolled full hard stainless steel with fine grain structure and superior stress relief annealing properties that is specifically designed for SMT stencils.  The micro grain structure of 2 to 3 microns ensures super smooth aperture walls post laser cutting that lead to superior paste release and print quality.  The enhanced annealing properties ensure flatness is maintained following both laser cutting and step etching / milling to produce high end multi-level stencils.

The NEW Datum FG is produced with the same 2% thickness tolerance as our Datum PhD and is available in gauges from 0.08mm to 0.30mm and widths up to 610mm and sheet lengths up to 1250mm.  Datum FG is also available in coils on request.

Datum FG is perfectly suited to laser cutting and chemical etching. The fine grain structure of this material ensures that cut edges are clean and precise, with a wall finish that is smoother than standard 304 Stainless material.

The below images show the effect of different annealing process when the material is half etched.

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