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Si 570 AR

Epoxy-Phenolic-based Heat Cured Hydrophobic Lining for Strong Alkali to Weak Acidic Media. Offers excellent Abrasion Resistance. Enhanced Heat Conductivity. Satin, Dark Grey Finish

SÄKAPHEN Si 570 AR is a high-quality single-component hydrophobic epoxy-phenolic thermosetting heat cured coating. Si 570 AR as self-priming and formulated and developed for direct to metal application. The lining offers excellent abrasion resistance making it the ideal coating solution for rotating equipment.

Further the product offers an enhanced heat conductivity. The lining offers 30% more performance in convection compared to regular linings. This has been tested and certified by a third party laboratory.

Si 570 AR is chemically resistant to liquids, fumes and mist (also in droplets) of strong alkaline to weak acidic media, salt solutions, greases, oils and gases and all types of cooling water including brackish, river, sea water and deionized water.

The coating surface is hard elastic containing exceptional hydrophobic properties, preventing caking, fouling and incrustation. Once polymerized, the lining is fully machinable with a formaldehyde concentration level of less than 0.1%.

For the particular use of coating Impellers, including machinery exposed to aggressive and abrasive alkaline substances at high temperatures. Further for the lining of Heat Exchangers exposed to abrasive media or where enhanced heat conductivity is required.

Product nameUnitSÄKAPHEN® Si 570 AR 
 Properties-Heat Cured Duroplast Coating 
 Resin base-Phenolic epoxy resin blend 
 Field of Application-In particular for the coating of impellers and parts that are exposed to aggressive and abrasive alkaline substances at high temperature. 
 Cure Mechanism-Heat cured 
 Quantity of components-1 
 Color-Dark grey 
 Surface-Satin finished 
 General chemical resistance (All resistances have to be inquired separately!)-Abrasion resistant and chemically resistant to liquids, fumes and mist also in droplets of strong alkaline to weak acidic media, all types of cooling waters including brackish, river and sea water as well as deionized water, salt solutions, greases, oils, solvents, gases. 
 pH RangepH4-13 
 Wet Film Thickness per layerµm100 
 Total dry film thicknessµm180-200 
 Coverageapprox. kg/m²/DFT1,8 kg / m² / 250µm 
 Surface PreparationSaSA2 ½ - SA 3 
 Surface Profileµm40 - 60 µm 
 Temperature resistance dry
(dry air oven)
°C-20°C to +180°C/200°C 
 Temperature resistance wet (water)°C-20°C to +180°C/200°C 
 Resistance to water vapor diffusion°C≤ ∆T 30°C 
 Overcoating Waiting Timehours/23°Cno limitations 
 Chemical Curingdaysafter final bake 
 Linear Thermal Expansionµmn/a 
 Pore testingVolts67,5 
 Pendulum hardness acc. to König6° sec132 
 Shore D HardnessShore D94 
 Adhesion TestN/mm² [MPa]> 30 
 Salt spray testhoursn/a 
 Impact Strengthmm (1 kg)> 1000 
 Surface smoothness (Ra)µm
Ø 3 readings
 Surface tensionmN/m<28 
 Taber Abrasion resistance, CS17 wheel, 1kgmg/1000 r.8 
 Crosscutclass0 (DIN EN ISO 2409) 
 Heat conductivity
Ø 12,7x2,0mm on C-Steel with 67,37 w/mK

Oxidation resistant fillers with a thermal conductivity of >100W /m·K and melting point well above 2000°C (originally used in semiconductor production), improves the heat transfer of thermosetting coatings and further increases abrasion resistance.

SÄKAPHEN Heat Cured Linings and Coatings

High-End Corrosion Protection and Carbon Footprint Reduction

Feel free to contact us for technical advice.

For any specific chemical resistances, fields of use, technical questions or other lining and coating queries, please feel free to contact us for technical advice.

Tel.: +49 20439470 or Email: info[at]

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