Level 1/2 Water Washable Fluorescent Penetrant

AL-4B is a fluorescent water-washable penetrant speciially designed for use in the automotive industry. It has superior washability and is easy to remove from rough non-ferrous cast parts and complex shapes. AL-4B can also be used to detect leaks in welded tanks and containers, and in applications where traditional petroleum solvent-based penetrants may attack the test surface, such as plastics.
  • Excellent washability
  • Quick to prepare and easy to use
  • Can be diluted with water to make it more cost-effective.

Ordering Information

200 litres056C225

1,000 litres056C226

Product Properties

NDT TypeFluorescent Penetrant Testing

Penetrant TypeType 1

Fluorescent Penetrant SensitivityLevel 1/2 - Very Low Sensitivity

Penetrant MethodsMethod A, Method C

Removal TypeWater Washable

Required EquipmentUV light source


Ideal ApplicationAutomotive, Automotive maintenance, Complex shapes, Rough non-ferrous cast parts, Welds

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