SikaCor® Zinc R

• Approved according to German standard ‘TL/TP-KOR-Stahlbauten’, page 87.

Minimum 1 year from date of production

In original sealed containers in a cool and dry environment.

~2.8 kg/l

~67 % by volume

~89 % by weight

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

Dry heat up to approximately +150 °C, short term up to maximum +180 °C.
Damp heat up to approximately +50 °C.

Sika® Thinner K
If necessary maximum 3 % Sika® Thinner K may be added to adapt the viscosity.
In case of using as weldable shop primer add ~12 % b.w. Sika® Thinner K.

+5 °C min. / + 35 °C max.

Maximum 85 %, except the surface temperature is significantly higher than the dew point temperature, it shall be at least 3 °C above dew point.

+5 °C min. / +35° C max.

Between SikaCor® Zinc R, SikaCor® EG-1 and SikaCor® EG-1 VHS:
Minimum waiting time until drying stage 6 is achieved to maximum 4 years.
In case of longer waiting time please contact Sika Technical Department.

Between SikaCor® Zinc R and other top coats:
Minimum until drying stage 6 is achieved to maximum depending on top coat.

In case of intermediate storage possible contamination must be removed before further coats may be applied.

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.

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 should not exceed 150 μm per layer.
The dry film thickness of the primer coat does not respect the correction factors on rough surfaces according to ISO 19840.

Steel:

Blast-cleaning to Sa 2 ½ according to ISO 12944, part 4.

Free from dirt, oil and grease.

Stir component A very thoroughly using an electric mixer (start slowly, then increase up to approximately 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.

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 minimum 180 bar
• Nozzle size 0.38 - 0.53 mm (0.015 - 0.021 inch)
• Spraying angle 40° - 80°

SikaCor® Cleaner