High Temperature Coatings Corrosion Under Insulation (CUI) & SP0198

Tech Talk with Trevor Newell, High Temperature Coatings Corrosion Under Insulation (CUI) & SP0198. Trevor is an AMPP Certified Senior Coating Inspector with over 30 years of industry knowledge and experience!

What are high temperature coatings
High temperature coatings are generally coatings above 120°C or 250°F. Coatings above this need to be inorganic to be able to react with the high temperature and soft corrosion protection. High temperature coatings can by categorized by temperature requirements, exposure, and/or application requirements (OEM, Maintenance, Hot Apply, Dry-Fall, Brush & Roll)

Ambient up to 400°F / 204°C
Silicone Alkyd Technologies

• PROS:
  – High Gloss Finishes
  – Flexible Application / Film Build
  – No Heat Cure
  – Dry-Fall “Spray-Safe” options
• CONS:
  – Color Stability up to 250°F
• TOP PRODUCTS:
  – HiTemp 860 / 865 Silicone Alkyd (Hybrid)
  – TemperKote 850 / 888 Silicone Alkyd (Hybrid)
• TYPICAL USES:
  Silos – Heaters – Piping – Ductwork – Tanks – Supports – Baghouses – Material Feeds/Conveyors – Bins – Hot Mix Asphalt Plant – OEM Applications

Ambient up to 500°F / 260°C
Silicone Acrylic Technologies

• PROS:
  – Easy Application
  – Hot Apply Options up to 400°F / 204°C
  – No heat cure
  – Premium Color Stability
• CONS:
  – Flat finish
• TOP PRODUCTS:
  – HiTemp 852 Silicone Acrylic (Hybrid)
  – TemperKote 600 Silicone Acrylic (Hybrid)
• TYPICAL USES:
  Ductwork – Piping – Generators – Stacks – Hot Feed Bins – HRSG Unit

350°F / 176°C up to 1000°F / 540°C
Silicone Copolymer Technologies

• PROS:
  – Hot Apply Options up to 400°F / 204°C
  – Premium Color Stability
• CONS:
  – Requires heat cure for exterior exposures
• TOP PRODUCTS:
  – HiTemp 854 Silicone Copolymer (Inorganic)
  – TemperKote 1000 Silicone Copolymer (Inorganic)
• TYPICAL USES:
  Ductwork – Piping – Generators – Stacks – Hot Feed Bins

Cyclic / Corrosion Under Insulation (CUI)
Novolac & Multipolymeric Matrix Coatings

• PROS:
  – Premium Barrier Properties
  – No Heat Cure Requirements
  – Meets NACE/AMPP SP0-198 Requirements
  – Hot Apply Options
• CONS:
  – Higher surface prep standards
• TOP PRODUCTS:
  – ChemTech 74-HF Novolac
  – HiTemp 827-HB MMC
• TYPICAL USES:
  Stacks – Exterior Vessels – CUI Piping – Tanks Under Insulation

Features and Benefits:

• Higher film build than competitor products
• Better color stability than competitor products
• Superior thermal shock resistance
• Custom colors up to 1000°F / 540°F
• Lower heat cure requirements
• Hot surface application options
• Dry-Fall “Spray-Safe” formulas in every temperature range
• Over 5,000 formulated colors available
• Brush & Roll and Spray apply options