Sika® Corro Top Neu
Aesthetically attractive, easy applicable coating with a smooth, glossy surface.
- Quick-drying
- Stackable
- Excellent adhesion even on hard PVC, timber, old coatings, primed galvanized surfaces and aluminium
Usage
Corrosion protection and colour design for steel or prime coated galvanized steel constructions, e.g. warehouse structures, machine parts, wall and ceiling cladding, doors, railings, for indoor and outdoor.Advantages
- Quick-drying
- Stackable
- Excellent adhesion even on hard PVC, timber, old coatings, primed galvanized surfaces and aluminium
Packaging
| Sika® CorroTop NEW | 12.5 kg net |
| Sika® CorroTop EG NEW | 12.5 kg net |
| Sika® Thinner B | 10 l and 3 l |
Colour
RAL and mio colour shades.
Slight colour deviations are possible due to raw material characteristics.
Product Details
Shelf life
1 year
Storage conditions
In originally sealed containers in a cool and dry environment.
Density
| Sika® CorroTop NEW | 1.3 kg/l |
| Sika® CorroTop EG NEW | 1.3 kg/l |
Solid content
| By volume | By weight | |
| Sika® CorroTop NEW | 56 % | 73 % |
| Sika® CorroTop EG NEW | 50 % | 69 % |
Chemical resistance
Sika® CorroTop NEW and Sika® CorroTop EG NEW are resistant to weathering.
Temperature resistance
Dry heat up to max. + 100°C
Application
Thinner
Sika® Thinner B
If necessary max. 3 % Sika® Thinner B may be added to adapt the viscosity.
Material temperature
Min. + 5°C
Relative air humidity
Max. 85 %, except the surface temperature is significantly higher than the dew point temperature, it shall be at least 3 K above dew point.
Surface temperature
Min. + 5°C
Drying stage 6
Sika® CorroTop New / Sika® CorroTop EG New | Dry film thickness 60 μm |
| + 5°C after | 21 h |
| + 23°C after | 10 h |
Waiting time to overcoating
| At + 20°C | Min. 12 h |
Drying time
Final drying time
Depending on layer thickness and temperature final hardness is usually achieved within several days.
Consumption
Product |
| Sika® CorroTop EG NEW |
| Dry film thickness | 60 μm* | 60 μm* |
| Wet film thickness | 110 μm | 120 μm |
| Consumption | 0.140 kg/m2 | 0.150 kg/m2 |
| VOC | 36.5 g/m2 | 48.0 g/m2 |
* Max. dry film thickness: 120 μm
SURFACE PREPARATION
Steel:
Surface must be free from oil, grease, dirt, as well as free of scale and mill scale.
Blast cleaning to Sa 2 ½ according to ISO 12944-4 will give the best result.
In case of lower exposure as e.g. in rural atmosphere or indoors, manual surface preparation (power tool cleaning) to St 2 may be sufficient.
Hot dip galvanized steel, copper, aluminium, hard PVC:
Free of oil, grease, dirt and corrosion products.
Old coatings:
Well adhering coatings need only to be cleaned.
Loose particles must be removed, corroded areas must be derusted to PSa 2 ½, PMa or PSt 2 and patched up with Sika® CorroTop NEW, Sika® CorroTop EG NEW or SikaCor® Aktivprimer Rapid.
For contaminated and weathered surfaces e.g. galvanized or primed areas we recommend to clean with SikaCor® Wash.
MIXING
Sika® CorroTop NEW and Sika® CorroTop EG NEW are supplied ready for use.
Stir thoroughly prior to application.
APPLICATION
The method of application has a major effect on achieving uniform thickness and appearance.Spray application will give the best results.The indicated dry film thickness is easily achieved by airless spray. Adding solvents reduces the sag resistance and the dry film thickness. In case of application by roller or brush, additional applications may become necessary to achieve the required coating thickness, depending on type of construction, site conditions, colour shade etc. Prior to major coating operations a test application on site may be useful to ensure the selected application method will provide the requested results.
By brush and roller
Conventional high pressure spraying:
- Nozzle size 1.5 - 2.0 mm
- Pressure 3 - 5 bar
Airless-spraying:
- Pressure min. 180 bar
- Nozzle size 0.33 - 0.53 mm (0.013 - 0.021 inch)
- Spraying angle 40° - 80°
CLEANING OF EQUIPMENT
Sika® Thinner B