Alumni-Chek Sprays

Goodson Tools & Supplies

Use Alumni-Chek Sprays to find surface cracks in aluminum and cast iron without electricity or special lights. The Alumni-Chek crack detection method is ideal for aluminum but also works on brass, cast iron, steel, carbide and Stellite. Even the tiniest cracks will show as bright red.

Alumni-Chek Cleaner - AC-1 is used to prepare the surface you're testing.
View or Download the AC-1 SDS

Alumni-Chek Penetrant - AC-2 is applied to the area being tested.
View or Download the AC-2 SDS

Alumni-Chek Developer - AC-3 is used to develop the dye.
View or Download the AC-3 SDS

A Hazardous Materials Fee is required to ship by air. Please call or email Goodson for more information.

Proposition 65 Warning WARNING: These products can expose you to chemicals including Ethyl Benzene, which is known to the State of California to cause cancer.  For more information go to

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Order No. Description Price Quantity
AC-1 Cleaner $20.99
AC-2 Penetrant $20.99
AC-3 Developer $20.99