YECOA YL-807 is black magnetic particles as an ultra-precise high-sensitivity general magnetic

particle for inspection by White light. It is of a non-corrosive, low toxicity, high-boiling point,

oil-based type as an economical and efficient product since it is uniformly coated upon spray with

addition of a special dispersant. YL-807 can be applied to internal defect parts on and close to the

surface, as a suitable product upon inspection of in-process defect parts and final product's defect parts.

● Find flaw, crack : Joining part(Seams), Shrinkage Cracks, Tears, Overlapping part(Laps)

● Welding Defect, Grinding Cracks, Quenching Cracks, Fatigue Cracks.

● Always wear safety equipment before work.

1. Please clean the contaminants on the surface that needs to be tested with cleaner(YL-801)(Drying Time 5 ∼10min).

2. Please spray the white paint (YL-806) evenly.

3. Please form the magnetizing current magnetic field.

4. Please spray the black magnetic particle spray (YL-807) evenly.

5. Please examine the testing area with naked eye.

 ※ 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℃.