Yellowish Liquid Metal Pretreatment Chemicals Aluminum Cleaning Agent

Metal Pretreatment Chemicals Application

Metal Pretreatment Chemicals is suitable for degreasing for alluminium&alluminium alloymagnesium& magnesium alloy in dipping and spray.

Metal Pretreatment Chemicals Introduction

Metal Pretreatment Chemicals consist of week acid, load form surface active agent and zwitterion to avoid corrosion and acid fog, specially suitable for alluminium products degreasing. Be suitable for degreasing for alluminium&alluminium alloymagnesium& magnesium alloy in dipping and spray. If it is not used in the process of casting aluminum

Bath solution compound: Put cold water into the tank till three-quarter with appropriate degreasing agent, then stirring, after, add sufficient water till working level, after, heat bath solution till operating temperature.

Metal Pretreatment Chemicals Details

Control parameter: compound concentration: 40-60kg/1000l

Outlook: colorless to yellowish liquid

Free acid: 30-50

Specific gravity: 1.1-1.2

Temperature: rt-40degree

Dipping time: 5-15minutes

Test method: free acid:1.pipet 10ml sample to conical beaker,

2. drip 3-4driping bromphenol indicator,

3. drip 0.1n NAOH into the solution, stop when yellow change to blue.

4. the consumption of NAOH is the free acid.

Density: test sample with gravimeter in 25 degree

Bath solution control: need to add1kg/1000l if free acid increase 1 point.

We could drain the bath solution regularly in continuous flow or automatic flow to maintain the TFR lower than MAX TFR.

Changzhou Junhe Technology Stock Co., Ltd. is a high-tech enterprise devoted to developing industrial fine chemicals, special equipment and services solution provider which was founded in Changzhou, Jiangsu in 1998.

Zinc flake microlayer corrosion protection coating is one of our core products, our company draw on the experience and lesson of dacromet coating technology from Japan and USA, investing millions on R&D, after 20 years application and diffusion, Junhe zinc flake microlayer corrosion protection coating already become one of the leading brand in China.

Our company have three industrial base: chemical production base, equipment production base, coating job processing base.

Equipment Production Base

Chemical Production Base

Coating Job Processing Base

Company research and development center is located in changzhou national hi-tech zone, owns 15 acres of land for construction and is built around five categories of chemicals and equipment research and development and incubation bases, equipped with standardization on the basis of the experimental equipment and testing equipment of the company's marketing center and two functional departments in the changzhou new north area to create building, the company's three big center and subsidiary system solution for customer demand to provide a solid foundation. The company has passed ISO9001 and TS16949 system certification.

Our Qualification