Maxguard NP 189016 SC White is a premium gelcoat from INEOS Composites, formulated with low styrene emission (LE) technology. It delivers excellent chemical resistance and ageing resistance for the finished laminate, while cutting volatile organic compound emissions by 50% compared with standard gelcoats, making it a reliable choice for marine builders and other manufacturers who need a durable, high-quality surface finish.
Maxguard NP 189016 SC White belongs to INEOS Composites’ NP series of premium gelcoats, distinct from the GN and GT series also carried on this site. The “NP” designation reflects INEOS’s low styrene emission (LE) technology, which reduces VOC emissions by roughly 50% versus standard gelcoat formulations, improving the working environment on the shop floor and reducing gelcoat consumption per part. The “SC” suffix indicates a spray-application-ready viscosity profile, and this white-pigmented grade shares the same 189016 shade reference used across the wider Maxguard product family.
Key Features & Benefits
- Low styrene emission (LE) technology — cuts VOC emissions by around 50% versus standard gelcoats.
- Excellent chemical resistance — protects the finished laminate against a wide range of chemical exposure.
- Strong ageing resistance — maintains surface appearance and performance over long service life.
- High-quality surface finish — recommended for marine applications and other products requiring premium cosmetic results.
- Reduced gelcoat consumption — the LE formulation improves application efficiency and lowers material usage.
Technical Specifications
Liquid Gelcoat Properties
| Property | Hand Lay-Up | Spray | Test Method |
|---|---|---|---|
| Viscosity @ 23°C – Brookfield RVT, spindle 4, 10 rpm | 14000 mPa·s | 11500 mPa·s | ISO 2555 |
| Viscosity @ 23°C – Cone & Plate (ICI) | 800 mPa·s | 400 mPa·s | ISO 2884 |
| Gel Time @ 23°C (2% MEKP) | 20 min | 15 min | ASTM D2471 |
| Storage | Below 25°C, protected from light, for a maximum of 3 months | ||
Cured Resin Properties
| Property | Nominal Value | Test Method |
|---|---|---|
| Tensile Strength | 63 MPa | ISO 527 |
| Tensile Modulus | 3300 MPa | ISO 527 |
| Elongation at Break | 4.5% | ISO 527 |
| Flexural Strength | 110 MPa | ISO 178 |
| Heat Deflection Temperature (HDT, 1.81 MPa) | 72°C | ISO 75, Method A |
| Hardness | 40 Barcol | ASTM D2583 |
| Water Absorption, 28 days / 7 days / 24 hours | 68 / 38 / 9 mg | ISO 62 |
Applications
Maxguard NP 189016 SC White is recommended for marine applications and other products requiring a high-quality surface finish, including boat hulls and decks, spa and pool shells, and general FRP/composite parts where cosmetic appearance and long-term durability are priorities.
Application Guidelines
- Store the gelcoat below 25°C, protected from light, for no longer than 3 months.
- Stir thoroughly before use while avoiding air entrapment.
- Maintain the workshop and material/tool storage area at 18–25°C and below 80% relative humidity.
- Add MEKP (methyl ethyl ketone peroxide) catalyst at 1.5–2.5%.
- Control the applied wet-film thickness at 400–800 µm depending on the final application.
- Refer to the INEOS Gelcoat Application Guide for full processing conditions, and the Material Safety Data Sheet for product safety information.
