
ZL-420 fluorescent penetrant
ZL-420 is a low-level sensitive water-based fluorescent penetrant, which can be used for the detection of surface opening defects of castings and forgings with rough surfaces or without machining. ZL-420 can be widely used in the inspection of key components in the automotive industry or other industries, such as steering knuckles, wheel hubs, pistons, valve rods and control arm rockers.
The water-based ZL-420 has excellent washing performance and can be easily removed even on rough surfaces with little background residue. Quick cleaning can also save the consumption of cleaning water, produce less sewage, and have low BOD and COD values. In addition, ZL-420 has an excellent BOD/COD ratio, which makes the wastewater biodegradable.
ZL-420 is a fluorescent penetrating product with excellent performance. It takes less amount during the dripping process, reduces the consumption of permeate, and reduces the cleaning time and water consumption, so that the customer's overall operating cost is lowered and the efficiency is higher.
Features
Water-based washing type
Good removability on rough surfaces
Less background residue after cleaning
High cloud point
Good wettability
Water-based, no flash point, safe to use
Good washing performance
Short cleaning time
Small amount of permeate taken away
Low BOD, COD; excellent BOD/COD ratio (>0.4)