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SÄKAPHEN® SÄKALINE KTW is a high-quality hydrophobic two-component epoxy-based coating, resistant to various substances ranging from weakly acidic to alkaline including all types of water, including brackish, river and sea water as well as deionized water with nano particle filling.

The coating has a potable water approval (KTW Zulassung) for warm water (60°C). KTW stands for plastics in contact with potable water.

The images are for illustration purposes only and may differ from the actual appearance of the products.


Field of application:


For the coating of potable water tanks, pipe work, boilers and other warm (60°C) water tanks.



SÄKAPHEN® Coating SÄKALINE KTW - Product Data

Properties - Cold Cured Duroplast Coating
Resin base - Amine cured Epoxy system
Cure Mechanism - Cold Cured Duroplast Coating
Quantity of components - 2
Color - Black
Surface - Satine
pH Range pH 3 - 12 pH
Wet Film Thickness per layer µm > 300
Total dry film thickness µm 400-1000
Coverage approx. kg/m²/DFT 0,78 kg / m² / 600µm
Surface Preparation Sa SA2 ½ - SA 3
Surface Profile µm 40 - 60 µm
Temperature resistance dry (dry air oven) °C 85°C
Temperature resistance wet (water) °C 60°C
Resistance to water vapor diffusion °C ≤ ∆T 30°C
Overcoating Waiting Time hours/23°C min. 3,5 hours
Chemical Curing days 7
Linear Thermal Expansion µm n/a
Pore testing Volts 3200
Pendulum hardness acc. to König 6° sec 118
Shore D Hardness Shore D 83
Adhesion Test N/mm² [MPa] 20
Salt spray test hours n/a
Impact Strength mm (1 kg) 100
Surface smoothness (Ra) µm Ø 3 readings 4,6
Surface tension mN/m ~28 <31
Abrasion resistance mg/1000 r. under examination
Crosscut class n/a
Heat conductivity Ø 12,7x2,0mm on C-Steel with 67,37 w/mK W/mK n/a