SikaCor® EG Phosphat Plus
SikaCor® EG Phosphat Plus is a 2-pack primer based on epoxy resin containing zinc phosphate. Low solvent content acc. to Protective Coatings Directive of German Paint Industry Association (VdL-RL 04).
- Very good corrosion protection
- Chemical and mechanical resistant
- Suitable for application in work-shop or on site
- High film thickness per coat (up to 120 μm)
Usage
Designed as primer for steel surfaces exposed to atmospheric conditions.In combination with 2-pack intermediate and top coats SikaCor® EG Phosphat Plus is a mechanical resistant coating system for durable corrosion protection in rural, urban, industry and sea atmosphere, up to corrosivity category C5 high acc. to ISO 12944-2. In a dry film thickness of 20 μm SikaCor® EG Phosphat Plus can also be used as weldable shop primer.
Advantages
- Very good corrosion protection
- Chemical and mechanical resistant
- Suitable for application in work-shop or on site
- High film thickness per coat (up to 120 μm)
Packaging
| SikaCor® EG Phosphat Plus | 30 kg, 15 kg and 3 kg net. |
| Sika® Thinner EG | 25 l, 10 l and 3 l |
| SikaCor® Cleaner | 160 l and 25 l |
Colour
Sand yellow approx. RAL 1002, mat.-no. 687.02
Redbrown approx. RAL 8012, mat.-no. 687.06
Zinc grey approx. RAL 7005
Product Details
APPROVALS / CERTIFICATES
- Approved according to German standard ‘TL/TP-KOR-Stahlbauten, Blatt 87’
- Approved according DIN EN ISO 17652-2 as weldable shop primer
Shelf life
3 years
Storage conditions
In originally sealed containers in a cool and dry environment.
Density
~1.6 kg/l
Solid content
~62 % by volume
~80 % by weight
Chemical resistance
Combined with 2-pack epoxy intermediate coats and 2-pack PUR top coats:
Weathering, water, sewage, seawater, smoke gas, de-icing salts, acid and lye vapours, oils, grease and short term exposure to fuels and solvents.
Temperature resistance
Dry heat up to + 150°C, short term up to + 200°C
In case of higher temperatures please contact us.
Application
Mixing ratio
| Components A : B |
| By weight | 90 : 10 |
| By volume | 4.6 : 1 |
Thinner
Sika® Thinner EG
If necessary max. 5 % Sika® Thinner EG may be added to adapt the viscosity.
In case of use as weldable shop primer add approx. 18 % b.w. Sika® Thinner EG.
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
Pot Life
| At + 10°C | ~12 h |
| At + 20°C | ~8 h |
| At + 30°C | ~5 h |
Drying stage 6
| Dry film thickness 80 µm | |
| + 5°C after | 10 h |
| + 10°C after | 7 h |
| + 20°C after | 3.5 h |
| + 40°C after | 25 min |
| + 80°C after | 15 min |
Waiting time to overcoating
Min.: Until drying stage 6 is achieved.
Higher layer thicknesses, but also lower temperatures than specified, lead to longer drying times. The overcoating intervals can be delayed and may need to be determined on site.
Max.: 1 year
In case of longer waiting times please contact Sika.
Prior to further applications: After a waiting period or after exposure to weathering, all possible contamination must be removed from the surface before the subsequent coating is applied.
Drying time
Final drying time
Depending on film thickness and temperature full hardness is achieved after 1 - 2 weeks. Tests of the completed coating system should only be carried out after final curing.
Consumption
Theoretical material-consumption/VOC without loss for medium dry film thickness:
| Dry film thickness | 20 µm | 80 µm |
| Wet film thickness | 44 µm | 129 µm |
| Consumption | 0.067 kg/m² | 0.206 kg/m² |
| VOC | ~21 g/m² | ~41 g/m² |
With SikaCor® EG Phosphat Plus up to 120 μm dry film thickness per application can be achieved by airless spraying.
SURFACE PREPARATION
Steel:
Blast-cleaning to Sa 2 ½ according to ISO 12944-4.
Free from dirt, oil and grease.
For contaminated and weathered surfaces we recommend to clean with SikaCor® Wash.
MIXING
Stir component A very thoroughly using an electric mixer (start slowly, then increase up to approx. 300 rpm). Add component B carefully and mix both components very thoroughly (including sides and bottom of the container). Mix for at least 3 minutes until a homogeneous mixture is achieved. Fill mixed material into clean container and mix again shortly as described above. During mixing and handling of the materials always wear protective goggles, suitable gloves and other protective clothings.
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 - 2.5 mm
▪ Pressure 3 - 5 bar
▪ Oil and water trap is compulsory
Airless-spraying:
▪ Pressure min. 180 bar
▪ Nozzle size 0.38 - 0.53 mm (0.015 - 0.021 inch)
▪ Spraying angle 40° - 80°
CLEANING OF EQUIPMENT
SikaCor® Cleaner