Skip to main content

Si 57 DCS

Epoxy-Phenolic-based Heat Cured Lining for Strong Alkalis to Weak Acidic Media. Satin, Olive Grey Finish

SÄKAPHEN Si 57 DCS is a high-quality single-component epoxy-phenolic based thermosetting heat cured lining. Uniquely formulated for customer specific needs to meet end user requirements in the petrochemical and oil and gas industry. Si 57 DCS is self-priming and formulated for direct to metal application.

Si 57 DCS is chemically resistant to aqueous alkaline to weak acidic media and vapors of all types of cooling water including brackish, river and sea water. With a 9 Moh’s hardness, Si 57 DCS fillers make the lining almost as hard as diamonds which have a hardness of 10 Moh’s.

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

Especially suitable for the lining of Heat Exchangers, Condensers and Coolers.

Product nameUnitSÄKAPHEN® Si 57® DCS  
 Properties-SÄKAPHEN® Si 57® DCS  
 Resin base-Phenolic epoxy resin blend  
 Field of Application-Particularly suitable for the coating of heat exchangers. With 9 Moh's hardness, the fillers are partially almost as hard as diamonds with hardness 10.  
 Cure Mechanism-Heat cured  
 Quantity of components-1  
 Color-olive grey  
 Surface-Satin finished, smooth  
 General chemical resistance (All resistances have to be inquired separately!)-Chemically and abrasion resistant to liquid and gaseous media, ranging from highly alkaline to weakly acidic, cooling waters of all kinds, incl. brackish, river, and sea water, as well as deionized water,inorganic salt solutions, oils and greases and gases. Offers excellent insulation characteristics.  
 pH RangepH3 - 14  
 Wet Film Thickness per layerµm100  
 Total dry film thicknessµm180-200  
 Coverageapprox. kg/m²/DFT1,3 kg / m² / 200µm  
 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 time limitations  
 Chemical Curingdaysafter final bake  
 Linear Thermal Expansionµmn/a  
 Pore testingVolts67,5  
 Pendulum hardness acc. to König6° sec130  
 Shore D HardnessShore D94  
 Adhesion TestN/mm² [MPa]> 30  
 Salt spray testhoursunder examination  
 Impact Strengthmm (1 kg)800  
 Surface smoothness (Ra)µm
Ø 3 readings
 Surface tensionmN/m< 36  
 Taber Abrasion resistance, CS17 wheel, 1kgmg/1000 r.8  
 Crosscutclass0-1 (DIN EN ISO 2409)  
 Heat conductivity
Ø 12,7x2,0mm on C-Steel with 67,37 w/mK

Using an oxide filler combination, reputable for its dielectric strength >30kv, (similar to what is used as insulating material) improves the insulating properties of the lining and enhancing the tribological properties of the lining.

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]

SÄKAPHEN is happy to support!


* Mandatory fields