Neogel 8373-W-8571: An Iso/NPG Gelcoat for Marine and Water-Immersion FRP Parts
Neogel 8373-W-8571 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-8571 offers a combination of important characteristics: easy application, good resistance to long immersion in water with good blister resistance, excellent weatherability with less yellowing, good air release, and good mechanical properties. It conforms to USA ANSI-Z-124-1 and is approved by DNV Italia and Italian RINA.
Applications
This gelcoat family is pre-accelerated, thixotropic, ready for use, and available in a wide range of colours, in spray type and brush type (H suffix). It can also be supplied in standard or additional versions on request, including spray (paraffinated) and brush (paraffinated). The spray type can be applied with conventional equipment: a spray gun with a nozzle diameter of 2.0-3.5 mm at 4-5 bar pressure, or airless equipment with nozzle types 18/40-21/40.
To obtain optimum performance, buyers should apply this gelcoat at a temperature between 18°C and 25°C, cure with a recommended MEKP 50% solution such as Butanox M50 (Akzo Nobel) at 1.0-2.5% dosage, and target a film thickness of 600-800 g/m². For buyers building out a broader resin and gelcoat program, our technical team can help confirm application method and part geometry for grade confirmation.
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-8571 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. For plastics and composites testing standards referenced across the FRP industry, see the ASTM D20 committee on plastics.
Packaging and Shipping
Neogel 8373-W-8571 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.
Frequently Asked Questions About Neogel 8373-W-8571
What is the difference between the spray and brush types of Neogel 8373-W-8571?
The spray type is designed for spray application in production settings, while the brush type (H suffix) is formulated for brush application, commonly used in repair work.
Is Neogel 8373-W-8571 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.
Does Neogel 8373-W-8571 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-8571?
It is available in a wide range of colours in both spray and brush types, with paraffinated versions also available on request.
Do you provide COA and MSDS with shipments?
Yes, COA and MSDS are provided with every shipment, and we ship globally by sea and air freight.
Request a Quote for Neogel 8373-W-8571
If your project requires a UV-resistant, certified Iso/NPG gelcoat for marine or water-immersion FRP parts, contact our team with your target application method and part geometry. We can help confirm whether this gelcoat fits your process and provide supporting technical documentation and supply chain resource support.
