Comparison Chart

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Amine Epoxies

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Description

Form very hard, adherent films with excellent chemical and corrosion resistance. Amine cured epoxies are often used as protective coatings and linings in highly corrosive environments. Amine epoxies require care in handling since the amines can be moderately irritating to the skin, and may cause allergic reactions.

 

Advantages

  • Excellent alkali and water resistance
  • Very good acid resistance
  • Excellent solvent resistance
  • Hard, abrasion resistant film
  • Excellent corrosion resistance
  • Excellent wetting of substrate
  • Chemical/moisture barrier

 

Disadvantages/Limitations

  • Amines can be irritating/toxic
  • Relatively short recoat time
  • Relatively short pot life
  • Slower dry than normal polyamides
  • Chalks/may discolor

 

Primary Uses

  • Severe chemical resistant coating
  • Barrier coating
  • Offshore structures
  • Storage tanks, structural steel
  • Bridges, power plants
  • Tank linings
  • Secondary containment

 

S-W Products:

Amines

  • Shelcote II Epoxy
  • Shelcote II Flake Filled
  • Dura-Plate UHS
  • Tank Clad HS Epoxy
  • Sher-Glass FF

 

Ketimines

  • Dura-Plate MT
  • Macropoxy 920 PrePrime

 

Phenalkamines

  • Dura-Plate 235

 

Water-Based

  • Water-Based Tile-Clad
  • Zinc Clad VI
  • Fast Clad DTM Waterbased Epoxy

 

Polyamide Epoxies

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Description

Polyamide epoxies generally offer the widest latitude in coating formulation. They are considered more resilient and flexible, and have better weathering resistance and a longer pot life than amine cured epoxies. Polyamide epoxies generally have less solvent and acid resistance than amine cured epoxies.

 

Advantages

  • Very good alkali and water resistance
  • Good acid resistance
  • Longer pot life than amines
  • Easy to apply
  • Cures more quickly than amines
  • Good weathering characteristics
  • Good film flexibility
  • Excellent adhesion

 

Disadvantages/Limitations

  • Faster dry than amines
  • Chalks
  • High viscosity
  • Temperature dependent
  • Slow cure

 

Primary Uses

  • Water immersion
  • General industrial
  • Offshore structures
  • Storage tanks, structural steel
  • Water/wastewater plants
  • Tank linings
  • Bridges, power plants
  • Secondary containment

 

S-W Products

  • Kem Cati-Coat HS Filler/Sealer
  • Tile-Clad High Solids
  • Recoatable Epoxy Primer
  • Copoxy Shop Primer
  • Zinc Clad IV
  • Zinc Clad III HS
  • Hi-Solids Catalyzed Epoxy
  • Macropoxy 646 Fast Cure
  • Macropoxy 846 Winter Grade
  • Epolon II Primer
  • Epolon II Multi-Mil
  • Macropoxy HS Epoxy
  • Pro Industrial High Performance Epoxy

 

Amidoamine Epoxies

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Description

Amidoamines are reaction products of a polyamine and a fatty acid. Their properties generally fall between those of amines and polyamides. They have good water and corrosion resistance like amines, and good toughness like polyamides. They have relatively small molecular size giving them low viscosities and making them very good surface wetters.

 

Advantages

  • Excellent surface wetting
  • Excellent adhesion
  • Excellent water resistance
  • Low viscosity
  • Longer pot life than amines
  • Good gloss retention

 

Disadvantages/Limitations

  • Slow cure
  • Fair color retention
  • Temperature dependent
  • Primary Uses

 

Primary Uses

  • Barrier coating
  • Surface tolerant coating
  • Where chemical and moisture resistance is required
  • General industrial
  • Refineries
  • Bridges, power plants

 

S-W Products

  • Epoxy Mastic Aluminum II

 

Epoxy Phenolics/Novolacs

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Description

These coatings allow wide range formulating latitude. Novolac epoxy resin increases chemical resistance and solvent resistance. Increasing the level of phenolic increases the chemical and solvent resistance, but the coating loses flexibility. Some phenolics require heat curing.

 

Advantages

  • High heat resistance
  • Excellent chemical resistance
  • Excellent solvent resistance
  • Excellent corrosion resistance
  • Hard, abrasion resistant film

 

Disadvantages/Limitations

  • Some may require heat cure
  • Relatively slow air cure
  • Chalks/may discolor
  • Relatively brittle

 

Primary Uses

  • Severe chemical resistance
  • Tank linings
  • Secondary containment
  • General industrial
  • Refineries
  • Bridges, power plants

 

S-W Products

  • Phenicon HS Epoxy
  • Phenicon Flake Filled
  • Epo-Phen
  • Nova-Plate UHS

 

Siloxane Epoxies

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Description

Siloxane epoxies are relatively fast curing coatings with excellent stain and mar resistance. They have excellent color and gloss stability. Siloxane epoxies are typically used in high performance industrial applications. Also acceptable for architectural applications.

 

Advantages

  • Very good weathering resistance
  • Hard, abrasion resistant film
  • Very good acid resistance
  • Excellent color and gloss retention
  • Relatively fast dry

 

Disadvantages/Limitations

  • Solvent resistant
  • Heat resistant

 

Primary Uses

  • Bridges
  • Marine
  • High performance finish coating
  • Kennels, Schools, jails, hospitals
  • High moisture areas
  • Stain resistant coating

 

S-W Products

  • Polysiloxane XLE-80

 

Coal Tar Epoxies

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Description

Coal tar epoxies are a combination of a basic epoxy resin and coal tar. The coal tar is in the form of a semi-liquid pitch and blended with the epoxy resin. The curing agents for coal tar epoxies are usually either amines or polyamides. Coal tar epoxies offer excellent resistance to fresh and salt water and are highly resistant to cathodic disbondment.

 

Advantages

  • High film build with one coat
  • Excellent salt water resistance
  • Excellent water resistance
  • Excellent resistance to cathodic disbondment
  • Economical

 

Disadvantages/Limitations

  • Not for potable water
  • Black color
  • Critical recoat time/difficult to recoat
  • Fair solvent resistance
  • Chalks/browns

 

Primary Uses

  • Liner for sewage treatment tanks
  • Not-potable water tanks
  • Pipe coating
  • Penstocks, dam gates
  • Offshore rigs
  • Paper mills
  • Chemical Plants
  • Secondary containment

 

S-W Products

  • Hi-Mil Sher-Tar Epoxy
  • Tar-Guard Coal Tar Epoxy

 

Water-Based Epoxies

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Description

Generally consist of a non-yellowing acrylic resin disbursed in water mixed with an emulsified epoxy resin. They are relatively hard, durable coatings with moderate chemical resistance. They offer good stain resistance, abrasion resistance and resistance to most commercial cleaning agents and sanitizers. They can be used over previously applied conventional paints to upgrade the surface for better performance without wrinkling, lifting or bleeding.

 

Advantages

  • Good chemical and solvent resistance
  • Hard, abrasion resistant film
  • Upgrades conventional systems to high performance
  • Water clean-up, low-odor
  • No strong solvents
  • Good adhesion
  • Very long pot-life
  • Good weathering

 

Disadvantages/Limitations

  • Flash rusting on ferrous metal unless primed

 

Primary Uses

  • Light/moderate industrial areas
  • Tile-like wall coating
  • Schools
  • Hospitals
  • Food plants
  • Office areas
  • Kitchens
  • Hallways
  • Nursing homes

 

S-W Products

  • Water-Based Epoxy Primer
  • Water-Based Epoxy
  • Pro Industrial Hi-Bild Waterbased Epoxy

 

Epoxy Esters

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Description

A combination of epoxy resin and alkyd resin resulting in an air-drying coating. Epoxy esters provide a hard, durable film ideal as a machinery finish. Recommended for general atmospheric use in areas not considered severely corrosive.

 

Advantages

  • Hard, durable film
  • Easy to apply
  • One component
  • Good moisture resistance
  • Minimal surface preparation
  • Moderate cost
  • Low temperature application
  • Increased alkali resistance over alkyds

 

Disadvantages/Limitations

  • Fair solvent resistance
  • Poor weathering characteristics
  • Poor exterior gloss retention

 

Primary Uses

  • Moisture resistance
  • Where odor or low temperature limitations prevent solvent-based epoxy use
  • Abrasion resistance