Liquid Penetrant Testing | MTA Labs Inc

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Liquid Penetrant Testing

This method of inspection uses a penetrating dye to find cracks in metal, ceramic, and polymer surfaces. The following example shows the use of penetrating dye to reveal cracks eminating from the threaded holes of a ceramic part.

Figure 1
BEFORE LIQUID PENETRANT TEST
The as-received part does not show crack locations.

Figure 2
AFTER LIQUID PENETRANT TEST
The penetrating dye has revealed crucial crack locations not observable in the as-received part

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