PR508
1333-86-4
None
None
Yes
RoHS
Black
Liquid
Metallurgy, Machinery, Metal Blackening
1.02-1.07
8.0-9.5
10-20
400-500
KERUN
Drum
20KG
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 PR508 is a matt and weak base blackening agent. It is suitable for blackening of steel and metal parts after medium temperature tempering. It is non-toxic and eco-friendly, good blackening effect, easy for oiling, and its anti rust performance is excellent.
Product Features
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 PR508 is a matt and weak base blackening agent. It is suitable for blackening of steel and metal parts after medium temperature tempering. It is non-toxic and eco-friendly, good blackening effect, easy for oiling, and its anti rust performance is excellent.
Product Features
- Workpiece surface in dark black, very excellent effect.
- Suitable for mesh belt furnace, not sticky, and no scratches and spots.
- Long hours against salt spray test.
- Safe and eco-friendly, non-toxic and non-volatile.
| Item | PURUN PR 508 | Standard | |
| Appearance | Black liquid | Visual | |
| Density | 1.02~ 1.08 | GB/T 21784.2 | |
| pH value | 8.0 ~ 9.0 | GB/T 9724 | |
| Corrosion resistance | 3%CuSO4 dipping | qualified | GB/T 15519 |
| 5% oxalate dipping | qualified | ||
