SikaCor®-299 Airless

• Approved and listed by the Federal Institution for Hydraulik Engineering (BAW).
• The coating system is in compliance with the German rules of Foodstuff and Consumer Goods, certified by ISEGA
• Tested for crack bridging properties in accordance with "Approval principles for coating systems for concrete in LAU-plants"
• Coating based on epoxy resin for concrete protection accordung to EN 1504-2, DoP, with CE-mark

Min. 1 year

In originally sealed containers in a cool and dry environment.

~1.45 kg/l

~90 % by volume
~94 % by weight

Abrasion resistant, tough-hard, impact resistant.

Resistant to water, saltwater, sewage, diluted organic and anorganic acids, lyes, salts, detergents, beer, wine, fruitjuice, oil, fat.

Not permanently resistant to phenol, formic acid and acetic acid at higher concentration.

Dry heat up to approx. + 100°C

Damp heat up to approx. + 80°C

Not resistant to hot water in case of significant temperature gradient

(“cold wall effect”).

Min. + 10 °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. +10°C

In case of longer waiting times the surface must be activated by grinding or sweep blasting.

Final drying time
At + 20°C surface temperature and adequate ventilation: approx. 7 days.
Contact with foodstuffs only after the applied coating is fully cured to avoid contamination.

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

Apart from small areas the dry film thickness should not exceed 300 μm per coat when in contact with liquids or foodstuffs.

Concrete:
The surface areas to be coated must meet recognised building standards, i.e. be solid, load-bearing and free from contaminants detrimental to adhesion. Pull-off adhesion strength in accordance with DIN 1048 should be > 1.5 N/mm² on average with the lowest reading no less than 1.0 N/mm². For areas subject to heavy mechanical loading, the average value should be > 2.0 N/mm² and the lowest reading no less than 1.5 N/mm². Apply suitable compatible undercoats and observe recommended overcoating intervals.

Steel:

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

Free from dirt, oil and grease.

Average roughness depth R_Z ≥ 50 μm.

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 and roller:

• A dry film thickness of 150 - 200 μm per coat is possible

Airless-spraying:

• Pressure min. 200 bar
• Free flow of at least 10 l/min
• Diameter of hoses min. 8 mm (⅜ inch)
• Nozzle size 0.48 - 0.58 mm (0.019 - 0.023 inch)
• Spraying angle 40° - 80°
• Temperature of material and equipment at least + 20°C. At low temperatures the use of a flow heater is recommended.

Do not thin SikaCor®-299 Airless!

SikaCor® Cleaner