PR520B
1333-86-4
None
None
Yes
Black
Liquid
Machinery
KERUN
Drum
200KG
Nanjing, Jiangsu
Product Description
Product introduction:
Blackening agent is made up of many kinds of organic antirust agent, organic colorant, emulsified dispersant and anti rust agent through a number of processes. The surface of steel workpieces is blackened by deposition of film by thermal condensation, which plays the role of rust prevention and protection.PURUN PR520B is a matt black water soluble and weak blackening agent. It is suitable for blackening of steel metal parts after medium temperature tempering. It is non-toxic and eco-friendly. PR520B has good blackening effect and is easy for oiling, and its anti rust performance is excellent.
Product Features:
Product Parameter:
Shelf life
Products that have passed the factory inspection should be used within a year. If they are not used within this period, they can only be used after passing a re-inspection.
Blackening agent is made up of many kinds of organic antirust agent, organic colorant, emulsified dispersant and anti rust agent through a number of processes. The surface of steel workpieces is blackened by deposition of film by thermal condensation, which plays the role of rust prevention and protection.PURUN PR520B is a matt black water soluble and weak blackening agent. It is suitable for blackening of steel metal parts after medium temperature tempering. It is non-toxic and eco-friendly. PR520B has good blackening effect and is easy for oiling, and its anti rust performance is excellent.
Product Features:
1.The blackening film is smooth and dark with good appearance.
2.High temperature resistance and strong aging resistance.
3.Safe and eco-friendly, non-toxic and non-volatile.
Product Parameter:
| Item | KERUN PR 520B | Standard | |
| Appearance | Black liquid | Visual | |
| Density (20ºC), g/ml | 1.02~ 1.07 | GB/T 4472 | |
| pH value | 8.0 ~ 9.5 | GB/T 9724 | |
| Corrosion resistance | 3%CuSO4 dipping | qualified | GB/T 15519 |
| 5% oxalate dipping | qualified | ||
Shelf life
Products that have passed the factory inspection should be used within a year. If they are not used within this period, they can only be used after passing a re-inspection.
