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High temperature anti-corrosion coating

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High temperature anti-corrosion coating

Description

The surface of metal is corroded by an acid or an alkali easily, the traditional method to prevent corrosion was to coat an organic layer on the surface of metal, but the capability of weather-reliability was not good enough to protect the substrate from high temperature. There were  properties of high hardness, flame resist and high temperature resist on the EST coating material from GiantNano, it can hit high hardness request even in the high temperature environment. Additionally, the color of EST can be changed to achieve customer's request. 

Feature

  1. Burning resistance and heat-resistant 
  2. High hardness
  3. Low curing temperature
  4. Weatherability 
  5. Colorful

Specification

Item EST-S(0~X) ESTKS(0~X) EST-W(0~X) Teat method note
Solid content(%) 48±2 48±2 48±2 150 ℃ 30 mins adjustable
viscosity(cp) 10~100 10~100 10~100 A&D SV-10 adjustable
Specific gravity 1.1~1.3 1.1~1.3 1.1~1.3 hydrometer  
appearance orange balck white    

Process condition

Item EST
Substrate pre-treatment 1.Sand blasting pre-treatment
2.hair-line surface pre-treatment
3.Acid-Alkai pre-treatment
Solution mixing NA
Solution temperature (°C) RT
Substrate temperature (°C) RT~60
Coating Spray/Dip
Curing temperature (°C)  80°C 5 mins → 200 °C 30 mins

Performance

Item EST Test method Reference
Adhesion 5B 3M scotch 600Tape ASTM3359
Contact angle >80° Goniometer  
Pencil hardness 7H~8H (@25°C)
7H~8H (@300°C)		 1kg ASTM3363
Solvent resistance MEK Wipe 200 time  
Chemical resistance 0 48 hours  
Salt mist resistant No peeling, No damage 5% NaCI x 3000 hours  
Heat resistance > 800°C    
Weather resistance Gloss difference <10% Weather-O-meterx 5000 hours  
Abrasion test No scratch 1.5 kg 500 times (3M scrub sponge)  
Acid resistance No peeling, No damage 10% Aqua Regia 20 hours  
Acid resistance No peeling, No damage 10% H2SO4 30 hours  
Acid resistance No peeling, No damage 10%HNO3 30 hours  
Acid resistance No peeling, No damage 10% (HNO3+H2SO4) 30 hours  
Alkali resistance No peeling, No damage 5%NaOH 10 hours  
Alkali resistance No peeling, No damage 10% NH3 30 hours