Paint stripping of aluminium car wheels
Especially for the paint stripping of Al-car wheels (rims), two products of the Stripper line were developed. The choice between them depends primarily on the composition of the alloy from which the rim is made.
| Product line: | Stripper |
Type I |
|
| Applicable to materials: | steel; aluminum with low silicon content |
| Application temperature: | approx. from 70 °C to 90 °C |
| Concentration at deployment: | approx. from 20 % to 60 % vol. |
| pH: | mildly alkaline |
| Appropriate equipment: | diving device with forced circulation of the medium (by mixing the bath) |
Type II |
|
| Applicable to materials: | all types of aluminum; steel (must be passivated) |
| Application temperature: | approx. from 70 °C to 90 °C |
| Concentration at deployment: | approx. from 20 % až do 60 % vol. |
| pH: | acidic |
| Appropriate equipment: | spray device diving device with forced circulation of the medium (by mixing the bath) |
The following figure shows two parts of the same AL rim. The left part was stripped with Type I paint stripper. However, the alloy contains a high percentage of silicon and therefore the material darkened. The right part was stripped with Type II paint stripper - without any colour change.
