KF-FEVE500 fluorocarbon coating is a room-temperature-curing, ultra-high weatherability topcoat based on FEVE (fluoroolefin-vinyl ether/ester copolymer) resin. The C-F bond energy reaches 485 kJ/mol (vs only 347 kJ/mol for C-C), endowing the film with superb UV and chemical resistance. Accelerated weathering resistance (QUV-B) reaches 6000-10000 hours, equivalent to 20-25+ years of outdoor service life — the best weatherability among current room-temperature-curing coatings. Specified for top-tier projects such as supertall buildings and sea-crossing bridges demanding lifetime maintenance-free performance or ultra-long maintenance cycles. The higher unit cost is more than offset across the very long service life. The premium topcoat choice for heavy-duty anticorrosion systems.
TDS Technical Data Sheet – Fluorocarbon Coating KF-FEVE500
Technical Data Sheet · Fluorocarbon coating · KF-FEVE500
1. Product Description
2. Typical Applications
Supertall building steel structures (300 m+)/large stadiums/airport terminals and other landmark buildings (30+ year service life); sea-crossing and canyon bridges (structures difficult to access for maintenance coating); offshore wind turbine towers/jacket foundations (extreme marine corrosion environment); chemical plant and coastal power plant steel structures in high-corrosion atmospheres.
3. Technical Parameters
| Product type | Two-component solvent-borne FEVE fluorocarbon coating |
|---|---|
| Color | Full colour range |
| Gloss | High gloss (>80 GU)/semi-gloss/matte |
| Volume solids | 50±3% |
| Recommended DFT | 25-35 μm/coat (2-3 coats) |
| Theoretical spreading rate | 14-20 m²/L(30μm) |
| Mixing ratio | A:B=10:1 (by weight) |
| Pot life | 8h(20°C) |
| Surface dry time (23°C) | ≤1h(23°C) |
| Hard dry time (23°C) | ≤12h(23°C) |
| Min. overcoat interval | 4h(23°C) |
| Full cure | 7 days (23°C) |
| Application temperature | 5-40°C |
| Relative humidity | <80% |
| Flash point (closed cup) | approx. 26°C |
| Density (mixed) | approx. 1.2 kg/L |
| VOC content | <420 g/L |
| Adhesion | Grade 0–1 |
| Packaging Specs | 20 L drum |
| Shelf Life | 12 months |
| QUV weathering (3000h) | ΔE<5/gloss retention>70% |
| Fluorine content | ≥18% (resin solids) |
| Standard | HG/T 3792 / AAMA 2605 |
4. Application Guide
Surface preparation
Thoroughly clean the substrate surface to remove oil and rust. Abrasive-blast steel to Sa2.5 (ISO 8501-1) with 40-75μm surface profile. Concrete substrate moisture content must be below 6%, grind to remove laitance. For old coatings, remove loose areas and roughen the surface.
Mixing / compounding
According to the mix ratio indicated on the product label, add the hardener (component B) slowly to the base (component A) and mechanically stir for 3-5 minutes until uniform. Let stand to mature for 10-15 minutes before use. Use up within the specified pot life after mixing.
Application method
Recommended air spray (gun orifice 1.5-2.0 mm, pressure 0.4-0.6 MPa) or airless spray (nozzle 0.38-0.53 mm, pressure 15-25 MPa). Small areas may be brushed or rolled. Keep each coat dry film thickness within the specified range.
Curing conditions
Self-cures at ambient temperature (23°C) provided relative humidity meets requirements. Do not apply under low temperature (<5°C) or high humidity (>85%). Conduct performance testing only after full cure.
5. Packaging & Storage
| Packaging Specs | 20 L drum |
|---|---|
| Storage Conditions | Store at 5–35°C in a cool, dry, ventilated place away from ignition and heat sources; keep container sealed. |
| Shelf Life | 12 months |
| Transport | Transport as non-hazardous goods. In summer, ship in early morning or evening; avoid sun exposure. |
6. Health & Safety Notes
⚠️ Important safety notice
Read and understand the product's MSDS (Material Safety Data Sheet) carefully before using this product.
- Proper personal protective equipment (gloves, goggles, protective suit) must be worn during application
- Ensure the work area is well ventilated
- Keep away from fire and heat sources
- Avoid inhaling vapours and mist
- Avoid contact with skin and eyes
- If you feel unwell, stop work immediately and seek medical advice
Disclaimer
The data in this TDS are typical values and do not constitute product specifications. Actual product performance may vary depending on application conditions, substrate condition and environmental factors. Users are advised to conduct small-scale sample tests before bulk use to confirm product suitability.
Kexin New Materials continuously improves its products and reserves the right to modify technical parameters without prior notice. For the latest version please visit www.psste.com/fluorocarbon-coating-tds/ page.
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