Product family

Polyurethane Resins

Polyurethane casting tooling resins and fillers, vacuum replication, low-pressure RIM, FastCast and elastomers are presented as distinct process routes.

Precision-cast automotive bumper tooling blank
EPTEK / TOOLING EXPERTISEPolyurethane Resins

Engineering view / Polyurethane casting resins

Match chemistry to the part duty and production rhythm

PU casting systems bridge flexible parts, rigid filled castings, fast prototypes and functional tooling. The right choice balances hardness, flow, air release, shrinkage, demould time, surface density and CNC or paintability.

01 / CUSTOMER PROBLEM

Get from pattern to part faster

Casting can remove board assembly and shorten the route to a prototype, checking part, core box, tooling blank or small-batch functional component.

02 / SELECTION LOGIC

Define duty before speed

Flexible and resilient parts need a different balance from rigid, wear-resistant tooling. Set the duty, wall thickness, mould type, surface requirement and production rhythm before choosing a fast, rigid, RIM or elastomer route.

03 / PROCESS CHECKPOINTS

Protect flow and surface

Control mould release, mixing ratio, temperature, degassing, vents, fill path, cure, demould and post-processing. Low shrinkage and a dense surface only help if the mould and pour practice are also controlled.

04 / RELEASE CHECK

Confirm the finishing route

If the casting will be CNC machined, painted or bonded, include those operations in the trial. Check hardness, toughness, edge behaviour and paint or adhesive compatibility against the relevant TDS.

Define the part duty before choosing speed.Share geometry, temperature or hardness target, process route, quantity and finish requirement. The matching EPTEK TDS remains the authority for grade-specific values and handling limits.Contact us ↗

Controlled TDS data

Published PU grades

The rows below identify the published grade and route. Open the linked TDS for mix, cure, working and service values.

01 / PUCAST 260(S)

PuCast 260(S)

Filled PU casting tooling resin

Reference route: filled casting tooling resin. Confirm mix, cure and working values in the TDS.

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02 / PUCAST 260(W)

PuCast 260(W)

Filled PU casting tooling resin

Reference route: filled casting tooling resin. Confirm mix, cure and working values in the TDS.

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03 / PUCAST 261

PuCast 261

PU casting tooling resin

Reference route: casting tooling resin. Confirm mix, cure and working values in the TDS.

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04 / RIMCAST 836

RIMCast 836

Low-pressure RIM resin

Reference route: low-pressure reaction-injection moulding. Confirm mix, cure and working values in the TDS.

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05 / RUBCAST 390

RubCast 390

PU elastomer

Reference route: elastomer casting. Confirm mix, cure and working values in the TDS.

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01 / PRODUCT FAMILY

PU Casting Tooling Resins and Fillers

For cast tooling blanks and near-net forms; the published PuCast cards identify grades with EPTEK technical sheets. Select a system by casting size, filler package, cure and machining requirement.