Polyurethane Casting Resin — Rigid Two-Component Casting System
Allzone Trading supplies rigid two-component polyurethane casting resin to prototype shops, prop and display fabricators, short-run part producers and art studios across Canada. Urethane casting resin fills fine detail, demoulds quickly and machines and paints well, which makes it the standard material for silicone-mould production casting. Pot life, demould time, mix ratio and filler compatibility are confirmed against supplier technical data at quotation.
At a glance
- Product
- Polyurethane Casting Resin
- Grades
- Confirmed at quotation
- Typical applications
- Short-run production parts cast in silicone moulds · Prototypes, appearance models and design verification parts · Props, display pieces and scenic elements
- Packaging
- Packaging and pack size confirmed at quotation against the grade supplied
Handling notice. This product requires review of the supplier technical data sheet and safety data sheet before purchase and use. Request both documents for the exact grade under consideration.
- • Certificate of Analysis is provided against the confirmed shipment, grade and batch.
- • Manufacturer TDS and SDS are subject to grade and supplier confirmation and are available on request.
- • Grades, packaging and origin above are indicative sourcing options and are confirmed at quotation.
Available grades from container-direct sourcing
Typical applications
- Short-run production parts cast in silicone moulds
- Prototypes, appearance models and design verification parts
- Props, display pieces and scenic elements
- Decorative castings and reproductions
- Cast tooling aids, jigs and fixtures
- Filled castings using mineral fillers for weight and stiffness
Why Canadian buyers choose us
- Enquiries handled against your part, mould and process — not a fixed stock list
- Grade, working properties and mix data confirmed in writing before order confirmation
- Supplier technical data sheet and safety data sheet provided for the grade actually offered
- LTL and FTL freight to studios, precast plants, fabricators and distributors across Ontario, Quebec and Western Canada
- Quantities reviewed per enquiry, from trial kits through to pallet and container programmes
Typical industries served
Technical & procurement detail
Why urethane dominates production casting+
Urethane casting resins reproduce fine detail, cure fast enough to run several cycles a day from one silicone mould, and give a hard, paintable, machinable part. Compared with epoxy they demould far sooner; compared with polyester they smell less and shrink less. That combination is why bridge tooling and short-run production casting almost always start with urethane.
Pot life is the design constraint+
Many casting urethanes have very short working times, so mould filling, mixing method and batch size must be planned around the pot life of the grade rather than the other way round. Thin sections, complex mould geometry, or several moulds per batch may require a slower grade even if a faster one is available. Selecting pot life first prevents most casting failures.
Moisture, bubbles and surface defects+
Isocyanates react with water, so damp moulds, humid air, wet fillers and open containers cause foaming and pinholes. Standard practice is sealed containers, dry fillers and pigments, moulds at working temperature, careful mixing to avoid whipping in air, and pressure or vacuum casting where surface quality is critical.
Filling, colouring and post-processing+
Mineral fillers can be added for weight, stiffness, cost or thermal behaviour, and pigment pastes formulated for urethane give consistent colour. Fillers change viscosity, exotherm and pot life, so any filled formulation is treated as a new specification with its own trial. Cast parts are typically demoulded, allowed to reach full properties, then trimmed, machined or painted.
Specification options+
Working properties are configurable options within this canonical product, not separate products. Depending on the family, that can include grade, viscosity, mix ratio, pot life and demould time, hardness, colour, particle size or fibre length, and pack format. No configuration is presented as stocked or approved until it is confirmed against the supplier's technical data for the exact material offered. Supplier grade names, factory codes and manufacturer brands are not published here.
What to include in your enquiry+
Send the part size and wall thickness, the mould material, the required working time, the finish and colour needed, and the number of parts per run.
Frequently asked questions
How many parts can be cast per silicone mould?+
Mould life depends on the resin, part geometry, release practice and cycle rate. Production shops establish it by trial and then treat mould replacement as a running cost.
Why are there bubbles in my castings?+
Common causes are entrained air from mixing, moisture in the mould or filler, and trapped air in the mould geometry. Pressure casting is the usual production answer for bubble-free parts.
Can fillers and pigments be added?+
Yes, using dry fillers and urethane-compatible pigment pastes. Any addition changes viscosity, pot life and exotherm, so trial the exact formulation before production.
How is pot life selected?+
Start from the mould fill: part size, mould complexity, number of moulds per batch and mixing method. Choose the grade whose working time comfortably covers that sequence.
Is urethane resin UV stable?+
Unmodified urethanes commonly yellow with UV exposure. Where colour stability matters, state it in the enquiry so a grade formulated for the requirement is quoted.
Are technical documents provided before ordering?+
Yes. The supplier technical data sheet and safety data sheet for the exact grade offered are provided with the quotation, and the working properties in those documents govern — not any general description on this page.
What quantities are quoted?+
Quantities are reviewed per enquiry, from trial quantities through to pallet and full container programmes for production users and distributors.
Technical knowledge for Polyurethane Casting Resin Supplier — Canada
Engineering and purchasing guidance written for this material — understand it, apply it, compare options, specify a grade, and fix production problems.
Comparison Articles
Troubleshooting Guides
Related products
Materials commonly quoted alongside Polyurethane Casting Resin by the same plants.
Flexible Polyurethane Casting Resin
Bushings, pads, mounts and wear parts in maintenance work
Epoxy Casting Resin
River tables and thick decorative surface castings
Rigid Polyurethane Casting Foam
Lightweight cores inside cast or laminated parts
Flexible Polyurethane Foam System
Moulded cushioning and padded inserts
Need a quote on Polyurethane Casting Resin?
Request pricing, TDS/SDS and available documentation. We usually acknowledge enquiries within one business day; samples are subject to supplier availability and product classification.