Drying Time | 10℃ | 20℃ | 30℃ |
---|---|---|---|
Set to touch | 6hours | 4hours | 2.5hours |
Dry-through | 12hours | 8hours | 6hours |
Full hardness | 7days | 5days | 3days |
Property | Epoxy | Urethane | Surface Hardener | n-Coat |
---|---|---|---|---|
Component | Bisphenol base epoxy resin + Amine base hardener |
Isocyanate base resin + Polyol base hardner |
Modified silicate base | Inorganic-organic compound based on silicate |
Work flow | Surface treatment → Undercoat → Top coat |
Surface treatment → Undercoat → Top coat |
Surface treatment → Coat →Spreading → Cleaning |
Surface treatment → Top coat |
Membrane | YES | YES | NO | YES |
Advantages |
• High performance of Hardness, impact resistance, abrasion resistance • High performance of Chemical, acid, salt water, solvent, oil, water resistance • Freely colored • Good adhesion to substrate • Easy maintenance |
• High performance of Hardness, impact resistance, abrasion resistance • High performance of Chemical, water resistance • High performance of Acid, impact resistance • Durability • Elasticity |
• Stimulating early curing of concrete • Controlling dust release of concrete • Reinforcing concrete surface • Preventing against entering of moisture, chemical substances • Improving durability of concrete |
• Having both functions of surface hardener and coating agent • Excellent in fire, chemical, abrasion resistance • Staining resistance, excellent chemical, salt water, solvent, acid, oil, alkali, water resistance • Water vapor permeability • Freely colored • Good adhesion to substrate • Easy maintenance |
Disadvantages |
• Yellowing • No water vapor permeability • Poor adhesion to crystallizing polymer o non-polar polymer (PE, PP, Silicon, Acryl) • Low fire resistance |
• Lower adhesion relatively than Epoxy • Poor scratch resistance, staining resistance than Epoxy due to soft membrane • No water vapor permeability • Low fire resistance |
• Having both functions of surface hardener and coating agent • Poor staining resistance than Epoxy, Urethane • Complicated work • Expensive cost |
• Mixing at jobsite due to 2 component type |
Epoxy | Urethane | Surface Hardener | n-Coat | |
---|---|---|---|---|
Adhesion | E | G | E | E |
Abrasion resistance | G | P | E | E |
Staining resistance | G | P | G | E |
Scratch resistance | G | P | G | G |
Fire resistance (Firing, flame spread) | P | P | E | E |
Appearance (Leveling, color, roller marking, glossing) |
E | G | B | E |
Water vapor permeability | B | B | G | G |
Chemical resistance (solvent) | E | G | P | E |
Water resistance | G | G | B | E |
Acid, Alkali resistance | G | G | B | E |
Waterproofing | E | E | P | E |
Anti-slip | P | P | E | G |
Maintenance (cleaning, repair , durability) | G | B | B | E |
E : Excellent G : Good P : Plane B : Bad |