Neogel 8373-W-8921: A UV Iso/NPG Gelcoat for Marine and Sanitary Applications
Neogel 8373-W-8921 is an iso/Neopentylglycol gelcoat formulated for demanding marine, pool, and sanitary ware production, where buyers need a surface finish that resists long-term water immersion and UV exposure without early yellowing. Composite manufacturers sourcing this gelcoat typically evaluate it against other white or light-color gelcoats on blister resistance, weatherability, and ease of spray application.
Benefits
Neogel® 8373-W-8921 UV is an iso/Neopentylglycol gelcoat which has a combination of important characteristics: easy application, good resistance to long immersion in water (good blister resistance), excellent weather ability (less yellowing), air release, good mechanical properties, conforms USA ANSI-Z-124-1, approved by DNV Italia and Italian RINA.
Applications
Neogel® 8373-W-8921 UV is pre-accelerated thixotropic, ready for use and available in a wide range of colours, in the following types:
• Spray type (Neogel® 8373-W-8921 UV)
• Brush type (Neogel® 8373-W-8921 UVH)
It can also be supplied in a standard or additional versions on request:
• Spray (Paraffinated)
• Brush (Paraffinated)
Why Marine and Sanitary Manufacturers Source This Gelcoat
Buyers producing boat hulls, pool shells, and sanitary ware need a topcoat certified for long-term water contact, not just an attractive initial finish. This gelcoat addresses the need with third-party approvals and a documented spray application process, reducing risk for manufacturers supplying regulated markets.
Recommended Application Settings
The Spray type can be applied with conventional equipment with these recommended settings:
• Spray gun (nozzle Ø 2.0-3.5 mm, pressure 4-5 bar)
• Airless equipment (nozzle types: 18/40-21/40)
In order to obtain optimum performance it is advisable to operate as follows:
• Temperature between 18°C and 25°C
• Cure with recommended MEKP 50% solution, adjust amount between 1.0-2.5%
• Thickness of the film 600-800g/m²
Recommended curing agent reference: Butanox M50 (Akzo Nobel).
For compatible unsaturated polyester and vinyl ester resin laminating systems, our technical team can help confirm the full layup schedule behind Neogel 8373-W-8921 topcoat for marine or sanitary production, including cure schedule and pre-treatment recommendations for the substrate laminate.
Certifications and Sourcing Guidance
This gelcoat conforms to USA ANSI-Z-124-1 and is approved by DNV Italia and Italian RINA, which supports its use in regulated marine and sanitary ware production. For broader plastics and composites testing standards referenced across the industry, see the ASTM D20 committee on plastics.
Frequently Asked Questions About Neogel 8373-W-8921
What is Neogel 8373-W-8921 used for?
It is a UV iso/NPG gelcoat used as a protective and decorative topcoat for marine, pool, and sanitary ware FRP parts requiring long-term water immersion resistance.
What curing agent is recommended for this gelcoat?
A MEKP 50% solution is recommended, typically dosed between 1.0-2.5%, with Butanox M50 (Akzo Nobel) referenced as a suitable curing agent.
Is Neogel 8373-W-8921 certified for marine use?
Yes, it conforms to USA ANSI-Z-124-1 and is approved by DNV Italia and Italian RINA, both relevant to marine and sanitary ware manufacturers.
What application equipment works with this gelcoat?
It can be applied by conventional spray gun (nozzle 2.0-3.5 mm at 4-5 bar) or airless equipment (nozzle types 18/40-21/40), with an application temperature between 18°C and 25°C.
Is Neogel 8373-W-8921 available in different application types?
Yes, it is available as a spray type and a brush type (UVH), plus paraffinated spray and brush versions on request for exposed-surface curing.
Request a Quote for Neogel 8373-W-8921
If your production requires a certified UV gelcoat for marine, pool, or sanitary ware applications, contact our team with your target film thickness and color requirements. We can help confirm whether Neogel 8373-W-8921 fits your process and provide supporting technical documentation and supply chain resource support, including guidance on matching curing agent dosage to your shop temperature.
