Benefits
Neogel® 8373-W-9735 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. Neogel® is a registered trademark of AOC, a leading global supplier of resins and gelcoats.
- Good resistance to long water immersion with good blister resistance for marine and pool applications
- Excellent weatherability with less yellowing for exterior-exposed parts
- Conforms to USA ANSI-Z-124-1 and approved by DNV Italia and Italian RINA
- Available in spray and brush types, including paraffinated versions on request
- Manufactured under an ISO 9001:2015 certified quality management system
Applications
Neogel® 8373-W-XXXX 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-XXXX UV)
• Brush type (Neogel® 8373-W-XXXX UVH)
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)
Neogel 8373-W-9735 Selection Guide
Neogel® 8373-W-9735 is a strong fit for marine and water-immersion composite parts where blister resistance and weathering performance are critical, such as boat hulls, swimming pools, sanitary ware and furniture requiring good weatherability. Choose the spray type (Neogel® 8373-W-XXXX UV) for production spray application, or the brush type (Neogel® 8373-W-XXXX UVH) for repair and touch-up work. Paraffinated versions are available on request for applications requiring reduced styrene emission during cure. For comparison, see related AOC gelcoat grades Neogel® 8373-W-9124 and Neogel® 8373-W-9512. Contact our technical team with your application method and part geometry for grade confirmation.
Understanding Blister Resistance and Weatherability in Neogel 8373-W-9735
Blister resistance and weatherability are two of the most commercially significant properties formulators reference when selecting a marine gelcoat, since both defects are highly visible and costly to repair after a part is in service. Osmotic blistering develops when water slowly penetrates the gelcoat surface and reacts with soluble residues in the underlying laminate, so a gelcoat like Neogel 8373-W-9735 that is engineered for good resistance to long water immersion is specifically positioned to reduce this risk on hulls, pool shells, and other continuously wet structures.
Weatherability, and specifically resistance to yellowing, matters most on exterior surfaces exposed to UV light and outdoor weathering over years of service, which is why boat builders and manufacturers of outdoor furniture and sanitary ware pay close attention to this property when comparing gelcoat grades. Compliance with recognized standards such as ANSI (American National Standards Institute) Z-124-1 for sanitary ware, together with DNV Italia and Italian RINA marine approvals, gives buyers a documented basis for qualifying Neogel 8373-W-9735 against classification society and regulatory requirements rather than relying on general marketing claims alone.
Because gel time, cure behavior, and film build can vary with shop temperature and catalyst level, fabricators evaluating Neogel 8373-W-9735 for a new hull, pool, or sanitary ware production run should confirm the recommended MEKP dosage and film thickness against their own spray or brush application setup before committing to a full production schedule.
Packaging and Shipping
Neogel 8373-W-9735 is available in about 22 kg packages, with bulk supply options for large-volume buyers and a wide range of colors on request. It should be stored in the original closed packaging at a temperature not exceeding 20℃, out of direct sunlight and away from direct heat sources, offering a stability of 3 months from dispatch date under these conditions (2 months for AFAST versions or black/dark colors). The product has a Flash Point of >21℃ and is flammable. 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.
Neogel 8373-W-9735 Certifications and Compliance
Neogel 8373-W-9735 is manufactured under an ISO 9001:2015 certified quality management system, giving buyers consistent lot-to-lot quality for marine, construction, and industrial projects. The grade conforms to USA ANSI-Z-124-1 for sanitary ware and is approved by both DNV Italia and Italian RINA for marine use, making it a reliable choice for boat builders and shipyards that need to meet classification society requirements. Technical documentation, including COA, MSDS, and test reports, is available on request to support your quality assurance and import compliance process.
FAQ
What is the difference between the spray and brush types of Neogel 8373-W-9735?
The spray type (Neogel® 8373-W-XXXX UV) is designed for spray application in production settings, while the brush type (Neogel® 8373-W-XXXX UVH) is formulated for brush application, commonly used in repair work.
Is Neogel 8373-W-9735 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-9735 meet marine certification standards?
Yes, it conforms to USA ANSI-Z-124-1 and is approved by DNV Italia and Italian RINA.
What is the recommended curing process for Neogel 8373-W-9735?
Cure with a recommended MEKP 50% solution (e.g. Butanox M50), adjusting the amount between 1.0-2.5%, at temperatures between 18℃ and 25℃, with a recommended film thickness of 600-800g/m².
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.
