• SÄKAPHEN® SI 57® EG

  • 1

PHENOLIC EPOXY-BASED HEAT-CURED COATING RESISTANT AGAINST WATER VAPOR DIFFUSION FOR WEAKLY ACIDIC TO STRONGLY ALKALINE MEDIA. BROWN, MATT.

SÄKAPHEN® Si 57® EG is a high quality phenolic epoxy-based heat-cured thermosetting coating, resistant to water vapor diffusion (≤ ΔT 85°C).

The coating is chemically resistant to various substances from aqueous alkaline to weakly acidic media and vapors of all types of cooling water, including brackish, river and sea water.

The surface is hard-elastic.

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

  Fields 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 neutral and alkaline environment. The coating is resistant to water vapor diffusion.

   
   
   
   
   
   
   
   

 SÄKAPHEN® Coating Si 57 EG - Product Data

Properties - Heat Cured Duroplast Coating
Resin base - Phenolic epoxy resin blend
Cure Mechanism - Heat cured
Quantity of components - 1
Color - BROWN
Surface - Matt
pH Range pH 4 - 13
Wet Film Thickness per layer µm 100
Total dry film thickness µm 250
Coverage approx. kg/m²/DFT 1,4 kg / m² / 250µm
Surface Preparation Sa SA2 ½ - SA 3
Surface Profile µm 40 - 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 Time hours/23°C no limitations
Chemical Curing days after final bake
Linear Thermal Expansion µm n/a
Pore testing Volts 67,5
Pendulum hardness acc. to König 6° sec 112
Shore D Hardness Shore D 94
Adhesion Test N/mm² [MPa] > 20
Salt spray test hours n/a
Impact Strength mm (1 kg) > 1000
Surface smoothness (Ra) µm Ø 3 readings 1,95
Surface tension mN/m n/a
Abrasion resistance mg/1000 r. under examination
Crosscut class 0
Heat conductivity Ø 12,7x2,0mm on C-Steel with 67,37 w/mK W/mK 3,12