Ceram C0 data sheet
E:\shares\Baprod\BA\subtec_m\appendix\us\general\c0.fm
E-3
Surface preparation
In order to achieve the best results with this product, proper preparation of the surface is of critical
importance. The exact requirements change depending on the application, expected period of ser-
vice and original surface condition.
Steel
Make sure it is clean, dry and free of grease. The best results are attained by removing rust by blast-
ing in accordance with DIN EN ISO 12944-4, standard cleanliness grade Sa 2.5 - 3. The roughness
should be at least 50µm deep. A test certificate for the blasting equipment must be available.
Please ask for our advice on preparing other surfaces.
Material preparation
The material is supplied in the agreed mixing ratio. Mix all the hardener component into the basic
component, preferably using a mechanical mixer, also mixing around the walls and bottom of the
container. Only mix as much material as can be applied during the pot life.
The mixing ratio is 4:1 by weight.
Application instructions
Object requirements
The surface and air temperatures must be at least +10°C, and the relative air humidity at most
80%. The temperature of the surface to be coated must be at least 3°C above the dew point. Low
temperatures slow down hardening and make application more difficult. For the coating to harden
completely, the surface temperature must be above the minimum hardening temperature. High air
humidity or temperatures below the dew point can cause condensation to form on the substrate or
the coating surface. This can cause problems of adhesion to the surface and between layers. These
object conditions must be maintained during the application and hardening period. If the tempera-
ture or humidity approach the threshold values, we recommend the use of heating or drying equip-
ment. Ceram C0 can be applied on small surfaces by roller or brush.
Pot life
This table shows the practical hardening time from the start of mixing.
Coating layers and mate-
rial requirements
Ceram C0 is applied in layers of 400µm to around 1000µm, depending on the media and intended
duration of protection.
Theoretical yield: 1.8m
2
/kg at 400µm or 0.9m
2
/kg at 800µm.
Theoretical consumption: 0.60kg/m
2
at 400µm or 1.15kg/m
2
at 800µm.
In practice, consumption depends on the surface properties and the application method.
Use the following formula to determine how much is needed to cover a given surface:
Density x area (m
2
) x average thickness (mm) = consumption (kg)
Repeat coating intervals
/ subsequent coating
Another layer of Ceram C0 can applied after around 16hours up to 24hours at +20°C. The surfaces
must be clean, dry and free of oil or grease. If this interval is exceeded, the coating must be blasted.
In hot sunshine, the repeat coating interval is much shorter. Take suitable measures to prevent this.
Hardening time
Temperature
16°C
20°C
25°C
32°C
Pot life (minutes)
30
20
15
10
Table E-3: Pot life
Temperature
15°C
25°C
30°C
Hand dry
8hours
4.5hours
4hours
Table E-4: Hardening time
