
PercoTop 2K Chromate-Free Wash Primer CS305
PercoTop® CS305 is an acid-curing etch primer on a polyvinyl butyral (PVB) resin basis developed to provide exceptional corrosion resistance. Its formulation ensures it promotes excellent adhesion even on difficult substrates such as stainless steel. And it is ideal as a passivating pre-treatment for a wide range of metals from aluminium and steel, to galvanic and sendzimir zinc coated steel. CS305 dries quickly and has good hiding power. Application is easy with all traditional
application equipment including electrostatic.
Product description
SUBSTRATES
Substrates: |
|
Surface preparation: |
Substrates must be free from all contaminants. |
PRODUCT PREPARATION
Activator: | CS709 PercoTop® Activator Wash Primer |
Mixing Ratio: |
|
Pot Life at 20°C: |
8 hours Once mixed, the material should be applied the same day. |
APPLICATION
Method of application | Application viscosity DIN 4 mm, +20°C, |
Thinner | Nozzle | Pressure bar |
Number of coats |
Gravity / Suction feed | 15-16 s | as mixed | 1.3-1.4 mm | 2.5-3 | 2 |
HVLP | 15-16 s | as mixed | 1.3-1.4 mm | 2-2.5 | 2 |
Airless / Airmix | 15-16 s | as mixed | 0.23 mm | 2-3 Air ca.80-100 Material |
1 |
Pressure pot / Membrane pump | 15-16 s | as mixed | 1-1.1 mm | 2.5-3 Air 1-2 Material |
2 |
Electrostatic | According to the advice of the technical representative | ||||
Recomended film thickness /dry/ | 8 -12 μm |
DRYING
Air drying at 20°C: | 2 hours |
Forced drying | Flash time: 10-15 minutes Drying time: 30 minutes Drying temperature: 60 °C object temperature |
IR drying: |
Medium wave: 15-20 minutes |