Pultrusion Resin Manufacturer
Engineered Resins for High-Speed Profile Manufacturing
Consistent, high-reactivity polyester and vinyl ester systems for continuous FRP production.
Optimized for the Pultrusion Process
Pultrusion is a continuous molding process for producing composite materials with a constant cross-section. It requires a highly specialized resin system that can wet out fibers quickly and cure rapidly within the heated die.
Changyuan New Materials allows you to maximize your line efficiency. Our pultrusion resins are formulated for stable viscosity, rapid cure, and excellent surface finish.
Request a Pultrusion Resin Quote
Get a custom formulation matched to your line speed and profile complexity.
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Low Viscosity
Ensures rapid and complete wetting of dense fiber rovings at high line speeds.
High Reactivity
Fast curing cycles required for the continuous molding process to maximize output.
Smooth Surface
Formulated with low-profile additives to reduce shrinkage and improve surface aesthetics.
Lot Consistency
Strict quality control ensures stable gel times, preventing line stoppages.
Pultrusion Resin Systems
Tailored formulations for every application
Orthophthalic Pultrusion Resin
Cost-effective formulation for general purpose profiles. Offers stable viscosity and good mechanical strength for standard structural shapes.
- Fast line speeds
- Good surface finish
- Consistent reactivity
Isophthalic Pultrusion Resin
Enhanced durability and corrosion resistance. Ideal for electrical ladders, grating, and outdoor structural components requiring higher mechanical properties.
- Higher tensile strength
- Better weatherability
- Electrical insulation
Vinyl Ester Pultrusion Resin
High-performance resin for demanding environments. Used for corrosion-resistant grating, chemical plant structures, and high-strength rebar.
- Superior fatigue resistance
- High heat distortion
- Excellent corrosion resistance
Common Applications
Structural Profiles
I-beams, C-channels, angles, and tubes for construction and infrastructure.
Industrial Grating
Walkways, platforms, and trench covers for chemical plants and oil rigs.
Electrical Components
Cable trays, ladders, and insulation rods requiring non-conductive properties.
Pultrusion FAQ
What is the ideal viscosity for pultrusion resin?
Typically, pultrusion resins require a viscosity range of 300-600 cps to ensure proper fiber impregnation. However, we can customize the viscosity based on your specific fiber content (glass loading) and die complexity.
Do your pultrusion resins contain internal mold release agents?
We offer both base resins and formulated systems. We can incorporate internal mold release agents (IMR) and low-profile additives (LPA) into the resin system upon request to simplify your mixing process.
Can you match the reactivity to our line speed?
Yes, reactivity is critical for pultrusion. We can adjust the catalyst system and resin promotion to match your specific die temperature profile and line speed, ensuring a complete cure without cracking.
What is the difference between pultrusion resin and hand lay-up resin?
Pultrusion resins are generally lower in viscosity and much higher in reactivity compared to hand lay-up resins. They are designed to cure in minutes at high temperatures within the die, whereas hand lay-up resins cure slowly at room temperature.
Optimize Your Pultrusion Line
Contact our technical engineers to discuss your pultrusion speed, profile complexity, and resin requirements.