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NFK Wetpreg Molding combines controlled layup, defined impregnation and industrial forming into a new manufacturing path for natural fiber composite parts.
Natural fiber composite unfolds its strength when fiber, resin, tooling and part are consistently thought through together.
Natural-fiber textiles with different properties are combined deliberately — instead of random fiber distribution.
Digitally recorded, automated process parameters ensure consistent quality across the entire series.
A reusable, temperature-controlled vacuum hood applies the consolidation pressure — short cycle time, homogeneous wall thickness.
In NFK Wetpreg Molding, natural-fiber plies are impregnated in a defined, semi-automated way and then consolidated and cured in the tool with a reusable, temperature-controlled silicone vacuum hood. The result is a process that depends less on manual wet processing — with reproducible part quality.
Tailored textiles from hemp, flax & co., cut to fit.
Defined, semi-automated impregnation of the cut pieces (Wetpreg).
Controlled ply and sandwich layup in the tool.
Reusable vacuum hood, short cycle time, consistent quality.
Trimming, finish, assembly — ready-to-fit component.
NFK Wetpreg Molding isn't better in every case — but specifically where classic processes don't fit ideally for large-area natural-fiber parts in series.
Fiber mats are manually soaked with resin and placed in an open mold.
Highly dependent on manual work: fluctuating quality and fiber volume content, long cycle times, open processing.
A defined, pre-impregnated layup instead of manual wet lamination — reproducible and series-ready.
Chopped fibers are sprayed onto the mold together with resin.
Random fiber orientation and lower structural quality; high scrap.
Purposefully designed natural-fiber plies instead of random fiber distribution.
Dry fibers in a closed vacuum setup, resin is infused under vacuum.
Process-sensitive (flow paths), lots of single-use consumables, long setup and process times.
Defined pre-impregnation + a reusable vacuum hood: less single-use, shorter cycle time, less process risk.
Dry preform in a closed two-shell tool, resin is injected.
High tooling & equipment cost; pays off only at higher volumes.
Comparable process control with lower tooling effort — one mold + a temperature-controlled vacuum hood.
Pre-impregnated fibers are draped and cured under temperature and pressure.
Expensive, cold storage and limited pot life, energy- and capital-intensive (autoclave).
Controlled layup like prepreg — without cold chain, high-end cost and autoclave.
What value can we create with NFRP for your part? We assess it together — step by step.
Assess the potential for weight, cost and properties — NFRP vs. GFRP.
CAD, load cases, material & layup, tooling concept.
Sample parts, demonstrators, material and part testing.
Process window, quality assurance, finish & assembly — up to ~5,000 units/year.
What value can we create with NFRP for your part? Let's assess the potential together.
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