Marine Resin Manufacturer
Engineered for the Open Ocean
High-performance Isophthalic and Vinyl Ester resins preventing osmosis and ensuring long-lasting durability for marine vessels.
Protecting Your Marine Investment
The harsh marine environment demands materials that can withstand constant moisture, salt spray, and UV exposure. Marine grade resin is the backbone of modern fiberglass boat building.
Changyuan New Materials supplies premium Isophthalic and Vinyl Ester resins that are specifically formulated to resist hydrolysis and osmotic blistering, the two biggest threats to fiberglass hulls.
Whether you are building luxury yachts or working on commercial fishing vessels, our consistent formulations ensure structural integrity and superior surface finish year after year.
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Bulk supply for shipyards and boat builders. Request a quote today.
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Marine Product Portfolio
From skin coats to structural laminates, we cover every layer
Marine Grade Isophthalic Resin
Premium isophthalic polyester resin formulated for superior water resistance and blister protection. The standard choice for quality boat hulls and decks.
- High hydrolysis resistance
- Low water absorption
- Excellent wetting
Marine Vinyl Ester Resin
The ultimate barrier coat resin. Provides exceptional resistance to osmosis and osmotic blistering. Used as a skin coat behind the gel coat for maximum durability.
- Superior osmosis resistance
- High elongation
- Toughness
Marine Gel Coats
ISO-NPG based gel coats offering outstanding UV stability, gloss retention, and protection against marine environments.
- UV resistant
- High gloss retention
- Crack resistant
Marine Applications
Boat Hulls & Decks
Primary construction of fiberglass fishing boats, yachts, and patrol vessels.
Marine Repair
Structural repairs, blister treatment, and surface refinishing.
Offshore Structures
Corrosion-resistant components for offshore platforms and ease of maintenance.
Marine Resin FAQ
Q: Why use Isophthalic resin instead of Orthophthalic for boats?
Isophthalic resin provides significantly better water resistance and hydrolytic stability compared to standard orthophthalic resin. This reduces the risk of osmosis (blistering) and ensures the long-term structural integrity of the boat in wet environments.
Q: What is a barrier coat in boat building?
A barrier coat, often made with Vinyl Ester Resin, is applied directly behind the gel coat. Its tight molecular structure prevents water molecules from penetrating into the laminate, effectively blocking the main cause of osmotic blistering.
Q: Do your marine resins meet classification society standards?
Yes, our marine grade resins are formulated to meet or exceed rigorous international standards such as Lloyd's Register and DNV GL for marine applications, ensuring safety and reliability.
Q: Can these resins be used for wooden boat encapsulation?
While specifically designed for fiberglass, our resins (especially epoxy vinyl ester) can be used for encapsulation, though specific wood-penetrating epoxies are sometimes preferred. Our resins are best for FRP structural components.
Build Better Boats
Partner with a manufacturer that understands the science of marine composites.