Sourcing managers evaluating a new gelcoat grade usually have the same short list of concerns: does it cut styrene emissions, does it hold up in marine service, and can the shop apply it without retooling. Maxguard NP 189016 gelcoat from INEOS Composites is now listed on ChemicalsStore.com, and it answers those questions directly through its published technical data. This article walks through what the product actually is, what its data sheet reports, and the practical questions an FRP buyer should ask before placing a trial order.
What Is Maxguard NP 189016 Gelcoat?
Maxguard NP 189016 gelcoat is a premium, white-pigmented gelcoat from INEOS Composites, built on low styrene emission (LE) technology. According to the product documentation, it delivers strong chemical resistance and ageing resistance for the finished laminate while cutting volatile organic compound emissions by roughly 50% compared with standard gelcoat formulations. That combination is why it is positioned for marine builders and other manufacturers who need a durable, high-quality surface finish without pushing shop-floor VOC exposure higher.
The product sits within INEOS Composites’ NP series, which is distinct from the GN and GT gelcoat series also carried on ChemicalsStore.com. The “NP” designation refers to the LE technology itself, which lowers VOC emissions by about 50% versus standard formulations, improves the working environment on the shop floor, and reduces gelcoat consumption per part. The “SC” suffix in the product name indicates a spray-application-ready viscosity profile, and this white grade shares the same 189016 shade reference used across the wider Maxguard product family.
Key Features and 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 — suited to marine applications and other products requiring premium cosmetic results.
- Reduced gelcoat consumption — the LE formulation improves application efficiency and lowers material usage per part.
For buyers comparing gelcoat options, these five points on the data sheet are also the five practical questions worth asking a supplier before committing volume: Does the VOC reduction hold up under your workshop’s ventilation setup? Does the chemical resistance profile match your service environment? Is the ageing resistance backed by test data relevant to your climate? Does the surface finish meet your cosmetic tolerance? And does the reduced consumption rate translate into a measurable cost difference per part for your production volume.
Maxguard NP 189016 Gelcoat Technical Specifications
Liquid Gelcoat Properties
- Viscosity @ 23°C, Brookfield RVT spindle 4 at 10 rpm: 14,000 mPa·s (hand lay-up) / 11,500 mPa·s (spray), per ISO 2555
- Viscosity @ 23°C, Cone & Plate (ICI): 800 mPa·s (hand lay-up) / 400 mPa·s (spray), per ISO 2884
- Gel time @ 23°C with 2% MEKP: 20 minutes (hand lay-up) / 15 minutes (spray), per ASTM D2471
- Storage: below 25°C, protected from light, for a maximum of 3 months
Cured Resin Properties
- Tensile strength: 63 MPa (ISO 527)
- Tensile modulus: 3,300 MPa (ISO 527)
- Elongation at break: 4.5% (ISO 527)
- Flexural strength: 110 MPa (ISO 178)
- Heat deflection temperature (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)
These figures come directly from the INEOS technical data sheet for this product and give buyers a reference point when comparing it against other gelcoat grades already in use on a production line, rather than relying on general marketing claims.
Applications for Marine and FRP/Composite Manufacturers
This grade 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. It fits alongside common processes such as hand lay-up and spray-up, which are the two application routes covered directly in the product’s own viscosity and gel-time data.
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 to the Material Safety Data Sheet for product safety information.
None of these parameters are unusual for a marine-grade gelcoat, but they are worth confirming against your existing spray or lay-up equipment before scheduling a first production run, particularly the catalyst ratio and wet-film thickness range.
Sourcing Maxguard NP 189016 Gelcoat from ChemicalsStore.com
ChemicalsStore.com lists Maxguard NP 189016 gelcoat alongside the rest of the Maxguard GN and GT series, giving marine, construction, and general FRP buyers a single catalog to compare grades before ordering. As a one-stop sourcing platform for resin, gelcoat, fiberglass, and auxiliary agents, we provide sourcing support and access to the product’s technical documentation so buyers can confirm fit before committing to volume.
Explore the product page: Maxguard NP 189016 SC White. You may also be interested in our wider gelcoat and resin catalog: Unsaturated Polyester and Vinyl Ester Resins, Auxiliary Agents and Release Agents, and our Swancor and AOC supplier pages for complementary resin systems.
The viscosity figures on the data sheet are measured to ISO 2555, the recognized Brookfield test method for liquid resins and gelcoats, which gives buyers an independent reference point when comparing this grade against alternatives from other suppliers.
FAQ: Maxguard NP 189016 Gelcoat for FRP Buyers
What makes Maxguard NP 189016 gelcoat different from standard gelcoats?
Its low styrene emission (LE) technology cuts VOC emissions by roughly 50% compared with standard gelcoat formulations, while still delivering the chemical resistance, ageing resistance, and surface finish expected in marine-grade products.
Is Maxguard NP 189016 gelcoat suitable for spray application?
Yes. The “SC” suffix indicates a spray-application-ready viscosity profile, and the data sheet lists separate viscosity and gel-time values for both spray and hand lay-up processing.
What catalyst ratio should I use with this gelcoat?
The application guidelines call for MEKP catalyst at 1.5–2.5%, with wet-film thickness controlled between 400 and 800 µm depending on the final application.
How long can Maxguard NP 189016 gelcoat be stored before use?
The data sheet specifies storage below 25°C, protected from light, for a maximum of 3 months.
What is the difference between the NP series and the GN/GT gelcoat series?
The NP designation is specific to INEOS’s low styrene emission technology, which is what separates this series from the GN and GT gelcoat grades also carried on ChemicalsStore.com. Buyers weighing all three should compare each grade’s own data sheet rather than assuming shared performance.
ChemicalsStore.com operates as a one-stop sourcing platform for resin, gelcoat, fiberglass, and auxiliary agents used across marine, pultrusion, filament winding, and construction FRP manufacturing. If you are evaluating Maxguard NP 189016 gelcoat for an upcoming production run, send us your target application, processing method, and order volume at info@chemicalsstore.com, and we’ll help you confirm stock and get a quote.
