Description
The paint can be used in a variety of applications that require long-term corrosion protection in presence of moisture in the air or corrosive liquid environment. The paint can be deposited in form of coatings on metallic and printed circuit board (PCB) substrates with minimal or no surface preparation by means of different techniques, including spray coating, brush and roll painting and doctor blading. This surface-tolerant anticorrosion paint is compatible with a wide variety of primers, including ethyl-silicate based inorganic zinc primers. The paint allows drying at low temperature (20 ˚C for 48 h or 60 °C for 1 h). It is applicable up to more than 100 microns on a single coat with an excellent levelling and can be even overcoated with a wide variety of polymeric topcoats.
It can adhere to the following substrates: steel, stainless steel, sandblasted steel, zinc-based inorganic primer, galvanized steel, aluminum and aluminum alloys, cast iron and plastics.
| PHYSICAL PROPERTY |
METHOD |
VALUE |
UNITS |
| UNCURED |
|
|
|
| SOLID CONTENT |
ASTM D2369-20 |
75 |
%wt |
| DENSITY |
ASTM D1475-98/ISO 2811-1 |
1.4 |
g/cm3 |
| VISCOSITY |
ASTM D2196 |
14900 ± 3000 |
mPa·s |
| COVERAGE |
1 µm dried paint thickness with solid vol% ca. 50% |
280-330 |
m2/Kg |
| DRIED |
|
|
|
| HARDNESS |
ISO 2815
(Shore D hardness) |
> 85 |
– |
| ISO 1519
(Buchholz hardness) |
> 66 |
– |
| ADHESION |
ASTM D 3359 |
5B |
– |
ANTICORROSION
PROPERTIES |
ASTM G5-14*
(potentiodynamic anodic polarization test) |
< 10-4 |
mmpy |
| ASTM B117-18/ISO 9227**
salt spray (fog) test |
> 1000 |
hour |
| ISO 2812-2***
(5 wt% NaCl water immersion test) |
> 6 |
month |
* Test performed on product-coated structural steel (coating thickness ≥ 50 µm)
** Test performed on product-coated ethyl-silicate based inorganic zinc primer-coated structural steel (primer thickness = 10 µm; topcoat thickness = 150 µm)
*** Test performed on product-coated ethyl-silicate based inorganic zinc primer-coated structural steel (primer thickness = 10 µm; topcoat thickness > 50 µm
The anticorrosion paint performance depends on the preparation of the substrate surface.
The application method can be adjusted to obtain printed film with desired thickness and coverage, according to performance and application needs.
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