Welding supplies
/Non-Destructive Testing(NDT)
to think the nature and environment.
CRACK CHECK Penetrant (Dye penetrant testing agent)

Packing unit :

Aerosol 450㎖/Can, 20cans/Box

Product information

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 impossible 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 objects such as filth, etc.

After 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 inspection part is sprayed with the developer, it becomes CRACK CHECK. 


For liquid penetration testing of cast parts, forged parts, welded areas, water leak inspection, etc.


How to use



Shake it well before use.

Provide good ventilation.

Keep it away from your children.

This flammable product uses high-pressure gas.

 Please observe the following points when storing and using the product and discard.

● Even though it is low-flammable, keep away from fire to spray it.

● Provide good ventilation for long-time use.

● Keep it in the well-ventilated place below 40℃.

● Do not use it toward fire.

● Do not use near heater or stove.

● Do not use in the room using fire.

● Do not keep it in the place above 40℃.

● Provide ventilation to use it in the closed room.

● Do not throw it away into fire.

● Punch the can to throw it away.

● Do not keep it in the closed place.

● Spraying may not work well below 5℃.

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Entrepreneur : Lee Geun-hong Corporate registration number : 603-81-23835