Where Foam Core Materials Are Used in Wind Turbines
PET and PVC foam cores are used in different sandwich structures throughout wind turbine systems.
Typical Core Material Locations
· Blade shell sandwich areas
· Shear webs
· Trailing-edge sandwich structures
· Nacelle panels
· Spinner structures
· Internal lightweight sandwich components
Different materials, densities and finishing patterns may be used in different areas according to structural requirements and manufacturing processes.
| Material | Typical Wind Applications | Main Selection Considerations |
| PET Foam Core | Blade shells, shear webs, trailing-edge structures and nacelles | Good performance-to-cost balance, infusion efficiency, machinability and suitability for volume production |
| PVC Foam Core | Blade shells, shear webs and selected structural sandwich areas | High specific mechanical performance, fatigue resistance, low water absorption and processing flexibility |
What Matters When Selecting Wind Blade Core Materials
Core Finishing for Resin Infusion & Blade Kitting
Available Finishing Options
· Plain sheets
· Grooved sheets
· Perforated sheets
· Grooved and perforated sheets
· Contour-cut sheets
· Scrim-backed sheets
· CNC-cut components
· Drawing-based core kits
Designed Around Your In--fusion Process
Groove patterns, perforation patterns and core configurations can be adjusted according to resin system, laminate design, resin flow requirements and customer drawings.
Customers can provide drawings and required finishing patterns for manufacturing review.
Quality & Project Support for Wind Energy
Wind energy projects require consistent materials, repeatable processing and reliable supply throughout qualification and serial production.
JLon can support wind energy customers with:
· Technical datasheets and material documentation
· Batch identification and traceability
· Density and thickness inspection
· Customized finishing specifications
· Drawing-based core kit development
· Sample and trial-order support
· Production planning for volume programs
· Customized packing and labeling
Our goal is to support customers from material evaluation and prototyping through regular production supply.
Why JLon?
PET and PVC foam cores from one supplier
Standard sheets and customized core kits
Grooving, perforation and CNC processing
Multiple densities and thicknesses
Infusion-ready finishing options
Sample and technical document support
Drawing-based manufacturing support
Stable supply for volume projects
Frequently Asked Questions About Wind Turbine Blade Core Materials
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Which foam cores are used in wind turbine blades?
PET and PVC foam cores are both used in wind turbine blade sandwich structures. The appropriate material depends on blade location, mechanical requirements, density, process and cost target.
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Where is PET foam used in wind turbine blades?
PET foam is commonly considered for blade shells, shear webs, trailing-edge sandwich areas and other lightweight sandwich structures.
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Where is PVC foam used in wind turbine blades?
PVC foam can be used in blade shells, shear webs and selected areas requiring specific mechanical performance, fatigue resistance or low water absorption.
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Are PET and PVC foam suitable for vacuum infusion?
Yes. Both materials can be supplied with grooves, perforations and other finishing patterns designed to support resin flow during vacuum infusion.
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Why is resin uptake important in wind blade core materials?
Excessive resin uptake can increase blade weight and material consumption. Appropriate core finishing, groove design and perforation patterns can help control resin flow and resin consumption during infusion.
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Can JLon provide customized wind blade core kits?
Yes. Jloncell can provide cut-to-size, contour-cut, CNC-machined and drawing-based core components according to customer requirements.
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Can different core materials be used in the same wind turbine blade?
Yes. Different blade areas may use different core materials, densities and thicknesses according to structural load, manufacturing process and approved blade design.
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How should wind blade core density be selected?
Core density should be selected according to the specific blade area, structural load, core thickness, process conditions and approved blade design. Turbine MW rating alone is not sufficient for material selection.