
Sika® Permacor®-2707
Sika® Permacor®-2707 is a 2-pack epoxy resin topcoat with high mechanical resistance and with excellent chemical resistance to aqueous and alkaline exposure.
- Topcoat with high chemical resistance in RAL-colours
Usage
Sika® Permacor®-2707 is used as a top coat for metal surfaces exposed to extreme interior environments, e.g. for highly exposed structures, pipe work, cladding panels, railings, machines and other facilities. Sika® Permacor®-2707 is also used as an intermediate coat for walls and ceilings, e.g. in nuclear facilities and in the pharmaceutical industry.Advantages
- Topcoat with high chemical resistance in RAL-colours
Packaging
Sika® Permacor®-2707 | 14 kg net. |
Sika® Thinner E+B | 25 l and 5 l |
SikaCor Cleaner | 160 l and 25 l |
Colour
RAL colour shades, others on request
Finish: High-glossy
Product Details
APPROVALS / CERTIFICATES
- Approved according to the German DIN 55991-1 'Coatings for Nuclear Facilities'.
- The coating system is in compliance with the German rules of Foodstuff and Consumer Goods.
- Certified by ISEGA.
- Coating based on epoxy resin for concrete protection according to EN 1504-2, DoP, with CE-mark.
Shelf life
2 years
Storage conditions
In originally sealed containers in a cool and dry environment.
Density
~1.3 kg/l
Solid content
~50 % by volume
~66 % by weight
Chemical resistance
Depending on chemical exposure upon request.
Temperature resistance
Dry heat up to approx. + 120°C, short term up to + 150°C
Colour RAL 9006 up to + 180°C
Application
Mixing ratio
Components A : B |
By weight | 100 : 33 |
Thinner
Sika® Thinner E+B
If necessary max. 2 % Sika® Thinner E+B may be added to adapt the viscosity.
Material temperature
Min. + 10°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. + 10°C
Pot Life
At + 20°C | ~12 h |
Waiting time to overcoating
Waiting time at + 20°C
Min.: | after 8 h |
Max.: | upon request |
Drying time
Dry film thickness of 40 μm
At + 20°C | after 16 h |
Final drying time
Full mechanical and chemical resistance after 7 days.
When system is intended to be in contact with foodstuffs please allow intense ventilation and assure 7 days drying time at + 20°C.
Consumption
Theoretical material-consumption/ coverage without loss for medium dry film thickness of:
Dry film thickness | 40 μm |
Wet film thickness | 80 μm |
Consumption | ~0.104 kg/m2 |
Coverage | ~9.63 m2/kg |
SUBSTRATE PREPARATION
Concrete:
The surfaces to be coated must conform to the building standards and must be capable of bearing loads, firm and free from bond-impairing materials. The average tensile strength of the surface according to DIN 1048 should be at least 1.5 N/mm2 and must not fall below the lowest individual value of 1.0 N/mm2. In the case of high mechanical loads, the average nominal value is 2.0 N/mm2 and the lowest individual value 1.5 N/mm2. Suitable preliminary coatings compatible with the system are to be used. Cavities, shrinking holes or surface roughness have to be levelled e.g. by Icoment-520 Mortar. The respective rework times must be adhered to.
SURFACE PREPARATION
Steel:
Blast-cleaning to Sa 2 ½ according to ISO 12944-4.
Free from dirt, oil and grease.
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 or roller
Airless-spraying / Airmix-spraying:
- Nozzle size ≥ 0.33 mm (≥ 0.013 inch)
Conventional high pressure spraying:
- Nozzle size ≥ 1.3 mm
CLEANING OF EQUIPMENT
SikaCor® Cleaner