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  Waterborne anticorrosive

 

BNC 70-2 Water-based Chromium-free Zinc-aluminum Coating

 

 NoBNC 70-2

Products name Water-based Chromium-free Zinc-aluminum Coating

National StandardsMeeting with GB/T26110-2010

AppearanceSilver Gray

PackageAccording to A, B, C three component packaging respectively

 

Specification:

Items

Index

Method of Test

ViscosityNo.2 Viscosity Cups/s,≥

60~90

GB/T 1723-93

Hardness                   

5

GB/T6739-2006

Impact  /kg cm            

50

GB/T 1732-93

Adhesion  /class             

1

GB/T 9286-98

Flexibility  /mm             

35mm*10mm*2±0.1mmr=1±0.1mm

GB/T 1731-93

Salt spray resistance  /h

Thickness10-15um       

720

GB/T 10125-97

 

Technical Requirements:

1Treatment: Work-piece must be oil removal, rust removal, shot blasting, dust removal process

2Serous configuration: part A: part B = 1.4:1, B component mixed in A liquid mix slowly, and then add in 1 ~ 3 ‰ C components, mixing 12 h, filtering

3Coating:  Centrifugal dipping, spray and brush coating

4Baking process: first bake at 180 for 15 min, and then improve furnace temperature to 340 , bake for 30 min, stay to the workpiece after cooling to room temperature for secondary coating with a same coating

5Application:  Applicable to metal fasteners, powder metallurgy parts, aluminum alloy parts, steel structure and so on the many kinds of metal surface anti-corrosion treatment