Gloss Carbon Fiber Sheets: High‑Gloss Finishing & Maintenance Guide
Ensuring Mirror‑Like Shine for a Decade
Release Date: July 25, 2025 | Author: Aohong Carbon Fiber Surface Treatment Center
1. “Glossy” ≠ Ordinary Shine: Three Core Processes
1. Substrate Leveling
- 3K twill prepreg is cut and placed via 0.05 mm‑precision laser projection, ensuring no fiber overlaps or waviness.
2. High‑Solids Clearcoat System
- Two‑component polyurethane clearcoat (solids ≥ 70 %) applied in a 120 µm wet film, leveled within 5 minutes to eliminate orange peel.
3. Mirror Polishing
- Sequential wet sanding: 800 → 1500 → 3000 grit, followed by three‑stage cerium oxide polishing, achieving 60° gloss ≥ 90 GU and surface roughness Ra ≤ 0.02 µm.
2. High‑Gloss Surface Performance at a Glance
| Property | Gloss 3K Sheet | Matte Counterpart | Improvement |
|---|---|---|---|
| Gloss (60°) | 90–95 GU | 10–15 GU | True mirror finish |
| Surface Hardness | 3H (pencil) | 2H | Improved scratch resistance |
| UV Aging ΔE (500 h) | < 1.2 | < 0.8 | Outdoor durability up to 5 years |
| Fingerprint Visibility | Highly visible | Invisible | Requires periodic care |
3. Four‑Step Daily Maintenance
- Dust Removal: Wipe with a unidirectional micro‑fiber cloth to avoid scratches.
- Stain Cleaning: Dilute neutral pH 7 cleaner at 1:50; wipe with a damp cloth, then immediately dry.
- Waxing: Quarterly application of hard‑shell fluorine wax to form a 0.2 µm hydrophobic layer (water contact angle > 110°).
- Scratch Repair:
- Fine Surface Scratches: Lightly sand with 2000‑grit paper in a circular motion, then polish with compound for 3 minutes.
- Deep Scratches: Spot‑spray clearcoat, then polish entire panel to ΔE < 0.5.
4. Do Nots
- × Acidic/alkaline cleaners (pH < 5 or > 9)
- × Direct high‑pressure water jets (> 5 MPa)
- × Silicone‑containing car waxes (rainbow staining)
5. One‑Sentence Summary
Gloss Carbon Fiber Sheets deliver mirror‑like aesthetics and rock‑solid protection—just “dust, clean, wax, repair” in four simple steps to shine like new for ten years.
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