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SÄKAPHEN

Si 57 EG

Epoxy-Phenolic-based Heat Cured Lining for Strong Alkalis to Weak Acidic Media. Matt, Brown Finish

SÄKAPHEN Si 57 EG is a high-quality single-component epoxy-phenolic thermosetting heat cured lining, resistant to water vapor diffusion (≤ ΔT 85°C). Si 57 EG is self-priming and formulated for direct to metal application.

Si 57 EG is chemically resistant to aqueous alkaline to weak acidic media and vapors of all types of cooling water including brackish, river and sea water.

The film lining surface is hard elastic and once polymerized, the lining is fully machinable with a formaldehyde concentration level of less than 0.1% and is also resistant to temperature fluctuations.

Fields of application: For the lining of Heat Exchangers, Condensers and Evaporators, Turbo Machinery Housings, Uninsulated Tanks, Process Tanks and Vessels, Condensate Tanks, Desalination Plant, Thermal Degasifiers and Pipelines. Suitable for items that are exposed to hot water and steam in neutral and alkaline environments.  Si 57 EG is also resistant to water vapor diffusion.

For the lining of Heat Exchangers, Condensers and Evaporators, Turbo Machinery Housings, Uninsulated Tanks, Process Tanks and Vessels, Condensate Tanks, Desalination Plant, Thermal Degasifiers and Pipelines. Suitable for items that are exposed to hot water and steam in neutral and alkaline environments.  Si 57 EG is also resistant to water vapor diffusion.

Product nameUnitSÄKAPHEN® Si 57® EG  
 Properties-Heat Cured Duroplast Coating  
 Resin base-Phenolic epoxy resin blend  
 Field of Application-For coating of heat exchangers, air coolers, condensers and evaporators, housings of turbo machinery, uninsulated tanks and process tanks, condensate tanks, desalination, thermal degasifiers and pipelines. Especially suitable for plant parts that are exposed to hot water and steam in slightly sour to alkaline environment. The coating is resistant to water vapour diffusion.  
 Cure Mechanism-Heat cured  
 Quantity of components-1  
 Color-BROWN  
 Surface-Matt  
 General chemical resistance
(All resistances have to be inquired separately!)
-Diffusion resistance and chemically resistant to various substances from aqueous alkaline to weak acidic media and vapours of all types of cooling waters including brackish, river and sea water.  
 pH RangepH4 - 13  
 Wet Film Thickness per layerµm100  
 Total dry film thicknessµm250  
 Coverageapprox. kg/m²/DFT1,4 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 85°C  
 Overcoating Waiting Timehours/23°Cno limitations  
 Chemical Curingdaysafter final bake  
 Linear Thermal Expansionµmn/a  
 Pore testingVolts67,5  
 Pendulum hardness acc. to König6° sec112  
 Shore D HardnessShore D94  
 Adhesion TestN/mm² [MPa]> 20  
 Salt spray testhoursunder examination  
 Impact Strengthmm (1 kg)> 1000  
 Surface smoothness (Ra)µm
Ø 3 readings
1,95  
 Surface tensionmN/mn/a  
 Abrasion resistancemg/1000 r.under examination  
 Crosscutclass   
 Heat conductivity
Ø 12,7x2,0mm on C-Steel with 67,37 w/mK
W/mK3,12  

If non-insulated equipment that is coated reaches ∆T > 30°C, this may lead to water vapor diffusion. The SÄKAPHEN ‘EG’ range of linings allows for a high temperature resistant thin film lining to be applied, even with a temperature divergence.

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]saekaphen.de

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