SikaCor® Alutherm may only be used by experienced professionals.
High temperature and weather resistant protective coating for atmospheric corrosion protection.
For hot steel surfaces in power stations, refineries, chemical industries. Suitable for metal chimneys, rotary kilns, steam pipes, industrial furnaces etc.
- Temperature resistant with primer from + 400°C up to + 540°C
- Temperature resistant without primer up to + 600°C
|SikaCor® Alutherm||25 kg net.|
|Sika® Thinner S||25 l, 10 l and 3 l|
Appearance and Colour
Aluminium, approx. RAL 9006 silkglossy
- The fully cured material is weather resistant
- Dry heat up to approx. + 600°C; with zinc dust primers (e.g. SikaCor® Zinc ZS) up to max. + 540°C.
In originally sealed containers in a cool and dry environment.
~31 % by volume
~49 % by weight
If necessary max. 5 % Sika Thinner S may be added to adapt the viscosity.
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.
Min. + 5°C .
Waiting time to overcoating
At + 20°C Min. 24 h
Drying time at + 20°C
Dust dry after ~30 min
Touch dry after ~90 min
Final drying time
Prior to temperature exposure min. 1 week, please avoid sudden temperature feed.
For final curing/reaction and for achieving of all product properties a minimum temperature of + 180°C to + 200°C over a period of 2 h is necessary.
Theoretical material-consumption/VOC without loss for medium dry film thickness:
Dry film thickness
Wet film thickness
Blast cleaning to Sa 2 ½ acc. to ISO 12944-4.
Free from dirt, oil and grease.
SikaCor® Alutherm is supplied ready for use. Stir thoroughly prior to application, preferable with electric stirrer.
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:
- Only suitable for small areas
Conventional high pressure spraying:
- Nozzle size 0.8 - 1.5 mm
- Pressure 2 - 4 bar
- Pressure min. 150 bar
- Nozzle size 0.33 - 0.46 mm (0.013 - 0.019 inch)
- Spraying angle 40° - 80°
CLEANING OF EQUIPMENT
Sika® Thinner S.