SikaCor® Zinc R Plus

Certificates for C5 high and very high acc. ISO 12944 are available 

1 year

In original sealed containers in a cool and dry environment.

~2.3 kg/l

~71 % by volume

~89 % by weight

The fully cured material is resistant to weathering, water and mechanical wear.

Dry heat up to approx. + 150°C, short term up to max. + 180°C
Damp heat up to approx. + 50°C

Min. + 5°C

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.: 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.

When SikaCor® Zinc R Plus is to be overcoated after a waiting period or after exposure to weathering, all zinc corrosion products or other contaminations must be removed from the surface before the subsequent coating material is applied.

Sika® Thinner K
If necessary max. 3 % Sika® Thinner K may be added to adapt the viscosity.

Final drying time

Depending on film thickness and temperature full hardness is achieved after 1 - 2 days.
If used as primer for a coating system with top coats the final drying time depend on them and the full hardness is usually achieved after 1 - 2 weeks, depending on film thickness and ambient temperature. Tests of the completed system should only be carried out after final drying.

Min. + 5°C

Theoretical material-consumption/VOC without loss for medium dry film thickness:

*) for spray application

Apart from small areas the dry film thickness of SikaCor® Zinc R Plus should not exceed 150 μm per layer.

Ensure surfaces to be coated are clean, dry and free from all surface contamination such as oil, grease, dirt and corrosion products to achieve satisfactory adhesion.

Steel surfaces shall be blast-cleaned to Sa 2½ (according to ISO 12944-4)

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.

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

Conventional high pressure spraying:

• Nozzle size 1.7 - 2.5 mm
• Pressure 3 - 4 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°

SikaCor® Cleaner