Sherwin fluid seepagePermeant or dye penetration testing (PT) is a nondestructive material testing method that uses capillary force to find surface cracks or pores and make them visible. It can detect surface fracture defects, such as cracks, lapping, porosity. It is based on the penetration of liquid penetrants into open surface discontinuities. Penetration testing is not suitable for highly porous materials. The dye penetration method is used to determine surface defects, including surface cracks, pores, non-fusion, and intergranular corrosion.

Benefits of using Sherwin liquid penetrants:

1. Globally recognized non-destructive testing methods

2, easily determine surface cracks, pores, non-fusion and intergranular corrosion

3, the penetration test can be used for a variety of materials (also including non-ferrite and composite materials)

4. Fast and effective test method covering large area and surface

Six stages of Sherwin liquid penetrants:

1, surface cleaning (degreasing, etc.)

2, the application of penetrant (impregnation, spray, brush)

3, remove excess penetrant (solvent, water)

4. Developer application

5, test surface inspection (visual, TV camera)

6. Cleaning after inspection (anti-corrosion solution)

The Sherwin liquid penetration test can be applied to any non-porous cleaning material, metal or non-metal, but not to dirty or very rough surfaces. Surface cleaning is an important part of penetration testing technology. The method may be manual, semi-automatic or fully automatic. Penetration checks are performed on continuously running production lines where it is common for samples to be cleaned, impregnated, washed and dried in one time cycle. Shenzhen Oudejie Technology specializes in selling original imported Sherwin penetrant from the United States, and commits to selling Sherwin penetrant products are new original imported, to provide our customers with quotation, selection, product information and other services.