High Gloss Gelcoat (Mirror Finish)
Key Features
- Highest gloss (≥95 GU at 60°) from mold — mirror-like surface finish
- Nano-grade pigments for smooth, scatter-free surface
- Isophthalic base for gloss retention and hydrolytic stability
- Pre-accelerated for MEKP cure
- Suitable for highly polished mold surfaces
This high gloss mirror-finish gelcoat is formulated on an isophthalic resin base with a carefully selected pigment and filler system optimized to produce the highest possible initial gloss from the mold and maximize gloss retention over time. Initial gloss at 20° is ≥ 85 GU, with 60° gloss ≥ 95 GU. The formulation uses nano-particle titanium dioxide and no coarse fillers that could scatter light at the surface. The resin molecular weight distribution and crosslink density are tuned to produce a dense, smooth surface with minimal micro-roughness on the mold face. The gelcoat is compatible with chrome-polished or highly polished glass fiber molds. Pre-accelerated with cobalt, gel time 25–50 min at 20°C with 1.5% MEKP. Barcol 44–52. Available in white and a limited range of high-impact colors. Ideal for premium display products, award and trophy components, luxury marine fittings, and any FRP application where mirror-like surface quality is the key requirement.
Specifications
| Parameter | Value |
|---|---|
| Resin Base | Isophthalic UPR |
| Shelf Life | 6 months at 18–22°C |
| Gloss (20°) | ≥ 85 GU |
| Gloss (60°) | ≥ 95 GU |
| Film Thickness | 0.4–0.6 mm |
| Barcol Hardness | 44–52 |
| Gel Time (20°C, 1.5% MEKP) | 25–50 min |
Applications
FAQ
The gelcoat can only replicate the mold surface — it cannot improve surface quality beyond what the mold provides. For mirror finish parts, the mold surface must be polished to at least 1200 grit wet/dry sand finish, followed by progressively finer polishing compounds down to 3000–5000 grit and a final mirror-grade finishing paste. Chrome-plated, nickel-plated, or highly polished gel-coated molds are suitable.
Direct Contact
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