In-Mold Coating (IMC, White)
Key Features
- Class A white surface finish from mold — no secondary painting
- 3H–5H pencil hardness for scratch and mar resistance
- Full opacity white via high-quality TiO₂
- Excellent chemical resistance to cleaners, cosmetics, solvents
- High gloss retention for long service life
This white in-mold coating (IMC) is a high-hardness topcoat applied directly into the mold to produce FRP parts with a brilliant white, scratch-resistant Class A surface directly upon demolding. The white formulation incorporates high-quality titanium dioxide for full opacity and color stability. Based on a high-crosslink-density resin chemistry (polyurethane or acrylate-modified), it achieves pencil hardness of 3H–5H significantly outperforming conventional white gelcoat. Gloss at 60° is ≥ 88 GU. The IMC cures in the mold to deliver a ready-to-use part surface without secondary painting or polishing. Applications include bathtubs, shower trays, kitchen sinks, and white-goods appliance housings. Chemical resistance to alkaline cleaners, solvents, and cosmetics is excellent. Apply by spray at 80–120 µm dry film thickness into the mold cavity. Compatible with polyester and vinyl ester laminate systems applied into the mold after IMC partial cure.
Specifications
| Parameter | Value |
|---|---|
| Color | White (TiO₂ pigmented) |
| Shelf Life | 12 months at 15–20°C |
| Application | Spray into mold cavity |
| Gloss (60°) | ≥ 88 GU |
| Pencil Hardness | 3H–5H |
| Dry Film Thickness | 80–120 µm |
| Chemical Resistance | Excellent to household cleaners and alkaline agents |
Applications
FAQ
Spray the white IMC at 80–120 µm into the prepared mold. Allow to cure to a tack-free state (typically 20–40 min at 20°C, depending on IMC chemistry and temperature). Apply the structural FRP laminate while the IMC is in the prescribed bondable state. Cure the complete part per standard laminate schedule, then demold. The part surface is ready for use without further finishing operations.
Direct Contact
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