TOOLING MATERIALSApplication / Wind energy
The master pattern establishes the blade geometry and surface. The production mould then reproduces that surface through repeated manufacturing cycles. Each stage needs a different combination of core, working layer and reinforcement.
Engineering requirements
01 / MASTER PATTERN
A shaped polyurethane foam core supports the model build. A glass-fibre skin and hand-applied or machine-applied tooling paste form the working layer, followed by CNC machining and the specified finishing system.
02 / PRODUCTION MOULD
A gelcoat and glass- or carbon-fibre laminate reproduce the master surface. Resin viscosity, infusion time, exotherm and post-cure govern the manufacture of a large, dimensionally stable mould.
Engineering requirements
| Role | EPTEK material selection | Process concern |
|---|---|---|
| Lightweight core | PUFOAM | Bulk geometry, support, bonding and sealing |
| Machinable working layer | EPMOLD MP50, EP65, EP72 | Application method, layer continuity, machining allowance and cure |
| Mould laminate | EPMOLD 140LS / 170LV and EPLAM systems | Fibre wet-out, flow length, heat build-up and specified post-cure |
| Surface system | Tooling gelcoats | Compatibility with the working layer, laminate and release system |