Integrating Low-Profile Additive (LPA) Resins into Composites
Low-profile additives—often polyvinyl acetate (PVAc) based—are blended into unsaturated polyester resins to eliminate warpage, sink marks and surface irregularities in FRP parts. By incorporating LPA resins, manufacturers of composite panels can further elevate the quality and performance of its composite products:
| roduct | Typical Manufacturing | LPA Benefit |
|---|---|---|
| Façade panels | Sheet Molding Compound (SMC) | Zero shrinkage → flat, crack-free surfaces |
| Hygienic panels | Bulk Molding Compound (BMC) | Superior gloss & smoothness → meets strict hygiene specs |
| Anti-slip flooring | Pultrusion / RTM | Dimensional stability → precise tolerances, no distortion |
| Decorative laminates | Spray-up / Hand lay-up | High surface quality → consistent gloss & edge definition |
Key Advantages of LPA Resins composite panels
- Zero shrinkage or expansion for large-area panels
- Improved surface smoothness and uniform gloss
- Enhanced filler and fiber wet-out for mechanical strength
- Consistent part dimensions, reducing rejects and post-processing
With PVAc-based LPA technology, daylight and façade systems can achieve even higher standards of aesthetics, durability and dimensional precision.
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