Changzhou Junhe Technology Stock Co.,Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 2 tons per day |
| Delivery Time | three days after the advanced payment |
| Packaging Details | 25kg/plastic bucket |
| PH | 2.2-3.0 |
| Free acid | 0.8-1.1 |
| Temperature | 15－40℃ |
| Time | 60－120 sec |
| Aluminium ion content | 500PPM |
| Package | 25kg/drum |
| Brand Name | JUNHE |
| Model Number | 1357 |
| Certification | ISO9001 SGS CE |
| Place of Origin | Changzhou in China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 2 tons per day |
| Delivery Time | three days after the advanced payment | Packaging Details | 25kg/plastic bucket |
| PH | 2.2-3.0 | Free acid | 0.8-1.1 |
| Temperature | 15－40℃ | Time | 60－120 sec |
| Aluminium ion content | 500PPM | Package | 25kg/drum |
| Brand Name | JUNHE | Model Number | 1357 |
| Certification | ISO9001 SGS CE | Place of Origin | Changzhou in China |
| High Light | powder coating pretreatment system ，metal pretreatment process | ||
Low Foam Metal Pretreatment Chemicals Aluminum Spray Cleaning Agent
Metal Pretreatment Chemicals Application
Metal Pretreatment Chemicals is suitable for degreasing aluminum aluminum alloymagnesiummagnesium alloy work pieces in dipping and spray.
Metal Pretreatment Chemicals Introduction :
consist of weak acid, low foam surface active agent and zwitterion to avoid corrosion and acid fog.
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.
Control parameter: compound concentration: 40-80kg/1000l
Outlook: colorless to yellowish
Free acid: 20-40
Specific gravity: 1.08-1.18
Temperature: rt-40degree
Dipping time: 5-10minutes
Spray time: 90-120s
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 add6kg/1000l if free acid increase 1 point.
Could be drained in regular time
Reserve requirement:
Reserve in dry shady and cool place to avoid sunshine.
Packing:25kg/barrel.
Effluent disposal: Should observe chemical products disposal rules.
bath solution is acid which should be neutralized or disposed before drain.
Company Details
Business Type:
Manufacturer
Year Established:
1998
Total Annual:
1300-1500
Employee Number:
200~250
Ecer Certification：
Verified Supplier
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 p... 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 p...
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