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Description
Description
This flexible, pressure stable, non-woven polyester fleece core material is suitable for infusion and resin transfer molding (RTM) processing. It is specifically designed for vacuum resin infusion. Unlike traditional core materials, it features pressure stable cells that do not compress under vacuum, preserving its structure and thickness. These cells are separated by canals through which resin can easily flow during the resin infusion process. Once cured, these canals form a rigid plastic honeycomb that significantly increases the strength of the finished laminate.
With a very low resin uptake, this material can save at least 30% more weight compared to solid laminate. The cells exhibit high compression and shear strength, resulting in a very rigid core. Additionally, it eliminates the need for infusion mesh and peel ply, thereby reducing layup time and saving costs on bagging materials and wasted resin.
This flexible foam core can be used to add thickness to any infused laminate, including glass, carbon, or Kevlar, and is compatible with all resin systems including polyester, vinylester, and epoxy. Its usability, high compressive strength, and smooth surface make it suitable for all but the most stringent lightweight applications. Typical applications include marine hulls and decks, car panels and parts, industrial cladding, and leisure equipment such as kayaks and surfboards. It is particularly suitable as a core material in resin-infused carbon fiber vehicle panels.
Technical Specifications
| Specification | Measurement |
|---|---|
| Material | PET |
| Shape | Sheet |
| Colour | White |
| Density (g/cm³) | 0.0625 |
| Service temp long term max (°C) | 170 |
| Dry Weight g/m² | 125 (2mm thick), 165 (3mm thick) |
| Tensile strength (MPa) | 6 |
| Plate shear strength (MPa) | 6 |
| Compressive strength (MPa) | 4 |
| Flexural strength (MPa) | 16 |
| Plate shear modulus (MPa) | 40 |
| Flexural modulus (MPa) | 1000 |
Frequently Asked Questions
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What types of resin are compatible with this foam core?
This foam core is compatible with polyester, vinylester, and epoxy resin systems. -
What applications can this material be used for?
Typical applications include marine hulls, car panels, industrial cladding, and leisure equipment like kayaks. -
How does this foam core improve laminate strength?
The rigid plastic honeycomb structure formed after curing significantly enhances the strength of the laminate.