YECOA YL-801, YL-802, YL-803 is a PT(Pentrant Test) requiring absolutely no special apparatuses

Since handling and operation  are simple, general public can use it easily

Since fine defects impposible to visual identify are revealed in clear red color allowing visual identification, the defects can be easily discovered for checking without omission.

In can be used irrespective of materials or shapes of the inspection object

Being One Touch Aerosol Type, it is easy to use and convenient to carry

As no corrosive raw materials are used, it is safe to be used for easily corroded aluminum alloys and magnesium alloys

Results of the inspection are preserved as is unless wiped off

Even very fine defects are easily detected

There is no corrosiveness for various metals

It is easy and convenient to use for everyone 1,3 cleaner is sprayed directly onto the inspection object surface from a distance of 10-20cm to cleanly remove foreign object such as filth, etc.

After 2 penetrant liquid is sprayed, it is allowed to permeate for about 10-20 minutes

With 1,3 being smeared onto a cloth or tissue paper, the sprayed part is cleanly removed

When 4 inspection part is sprayed with the developer. It becomes CRACK CHECK