Neogel 8373-W-9124: An Iso/NPG Gelcoat for Marine and Water-Immersion FRP Parts
Neogel 8373-W-9124 is an Iso/Neopentylglycol gelcoat sourced by FRP manufacturers who need good resistance to long water immersion, blister resistance, and excellent weatherability in a spray or brush-applied system. Buyers comparing gelcoat options for marine hulls and pool components often evaluate this product on certification approval and long-term durability under continuous water contact.
Benefits
Neogel 8373-W-9124 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-XXXX is pre-accelerated thixotropic, ready for use and available in a wide range of colours, in the following types:
• Spray type (Neogel 8373-W-XXXX)
• Brush type (Neogel 8373-W-XXXX H)
It can also be supplied in a standard or additional versions on request:
• Spray (Paraffinated)
• Brush (Paraffinated)
The Spray type can be applied with conventional equipment with these recommended settings:
• Spray gun (nozzle φ 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℃ and 25℃
• Cure with recommended MEKP* 50% solution, adjust amount between 1.0-2.5%
• Thickness of the film 600-800g/m²
*Butanox M50 (Akzo Nobel)
Selection Guide
Neogel 8373-W-9124 is a strong fit for marine and water-immersion composite parts where blister resistance and weathering performance are critical, such as boat hulls and pool components. Choose the spray type (Neogel 8373-W-XXXX) for production spray application, or the brush type (Neogel 8373-W-XXXX H) for repair and touch-up work. Paraffinated versions are available on request for applications requiring reduced styrene emission during cure. For buyers building out a broader resin and gelcoat program, contact our technical team with your application method and part geometry for grade confirmation. For plastics and composites testing standards referenced across the FRP industry, see the ASTM D20 committee on plastics.
Why Certification Approval Matters
Marine gelcoats specified for boat hulls and other continuously wet parts are often required to meet recognized classification standards before a boat builder’s own end customer will accept the finished part. Neogel 8373-W-9124 conforms to USA ANSI-Z-124-1 and is approved by DNV Italia and Italian RINA, giving buyers documentation they can pass along to their own customers or regulatory reviewers without needing to commission separate third-party testing.
Packaging and Shipping
Neogel 8373-W-9124 is available in standard drums and IBC totes, with bulk supply options for large-volume buyers and a wide range of colors on request. We ship globally by sea and air freight, with COA and MSDS provided for every shipment. Contact us for current lead times and packaging options.
FAQ
What is the difference between the spray and brush types of Neogel 8373-W-9124?
The spray type (Neogel 8373-W-XXXX) is designed for spray application in production settings, while the brush type (Neogel 8373-W-XXXX H) is formulated for brush application, commonly used in repair work.
Is Neogel 8373-W-9124 suitable for marine applications with long water immersion?
Yes, it offers good resistance to long immersion in water with good blister resistance, along with excellent weatherability and less yellowing over time.
Does Neogel 8373-W-9124 meet marine certification standards?
Yes, it conforms to USA ANSI-Z-124-1 and is approved by DNV Italia and Italian RINA.
What colors are available for Neogel 8373-W-9124?
Neogel 8373-W-9124 is available in a wide range of colors on request. Contact our sales team with your desired color specification.
Do you provide COA and MSDS with shipments?
Yes, COA and MSDS documentation is provided with every shipment to support your quality control and regulatory compliance requirements.
