Dye Penetrant Inspection (DPI) Equipment

Sherwin PSM-5 TAM Panel

5 Star Panel

System Performance Check

Penetrant test panels based on the Pratt & Whitney TAM drawing 146040 are one of the most popular industry approved methods of performing system performance checks on DPI systems.

Pratt & Whitney Approved (146040)

Sherwin are a long standing Pratt & Whitney approved manufacturer of TAM panels with Sherwin generally been seen as the gold standard of penetrant test panel within the Aerospace sector.

The Sherwin TAM panel is a stainless steel plate with half the test surface hard coated with a micro thin chrome coloured alloy. The chrome coloured half contains five controlled and evenly spaced cracked centers – With the cracked centers in a circular pattern forming 5 star-like shapes. The non-coated side is grit blasted to give a roughness and is for testing the washability* of penetrant and for performing background tests.

*Washability is the visual assessment of excess penetrant removal.

Versions Available

  • Grit Blasted - Has a chrome strip which has been lightly grit blasted in order to dull the surface.
  • Smooth - The chrome plated strip is not grit blasted.

Product Data

  • Pratt & Whitney (146040) approved
  • Meets the requirements for Mil 6866 and ASTM E1417 as a system performance check
  • Industry approved method of performing a penetrant system performance check
  • Used globally and in several large aerospace companies
  • Serialised and supplied calibrated with relevant paperwork
  • Supplied in storage case with foam insert

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