Kerun Steel Blackening Agent Pr507

• CAS No.: 7732-18-5
• Formula: None
• EINECS: None
• Environmental Protection: Yes
• Certification: RoHS
• Color: Black
• Model NO.: Pr507
• Appearance: Liquid
• Usage: Machinery
• Transport Package: Drum
• Specification: 20KG
• Trademark: KERUN
• Origin: 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 PR507 is a matt black water soluble blackening agent. It is suitable for blackening of steel metal parts after medium temperature tempering. It is non-toxic and eco-friendly, good blackening effect, high coverage and glossiness and its anti rust performance is excellent.

Product Features:

• The surface of blackened workpiece is bright and even, excellent effect.
• Great coverage.
• Long hours against salt spray test.
• Safe and eco-friendly, non-toxic and non-volatile.

Product Parameter:

Item		PURUN PR 507	Standard
Appearance		Black liquid	Visual
Density (20ºC), g/ml		1.02~ 1.07	GB/T 4472
pH value		7.5 ~ 8.5	GB/T 9724
Corrosion resistance	3%CuSO4 dipping	qualified	GB/T 15519
	5% oxalate dipping	qualified