PolyCast G26 Polyurethane Casting Resin

From: £36.89

PolyCast G26 is a medium viscosity casting resin with a longer pot life of 3-4 minutes for all-purpose casting of larger parts 0.5mm and upwards

SKU: G26 Category:


Sylmasta PolyCast G26 Polyurethane Casting Resin is a medium viscosity, two-part resin with a slightly longer pot life for casting of parts 0.5mm and upwards.

It is used to produce detailed plastic copies of original items, enabling model makers to create multiple casts once they have taken a mould of a master sculpt or kit parts which they have modified.

G26 has a pot life of 3 to 4 minutes and a de-mould time of 30 minutes to 10mm thickness. It cures to a light beige colour (Original) as standard. It is also available in grey.

For other colours, SylCreate have the facility to custom make resins colour matched to a specific Pantone or RAL colour.

If you require such customisation, please contact SylCreate via email with the full Pantone or RAL Colour Reference number for a quote.

Parts made using Sylmasta PolyCast Casting Resins have very low shrinkage and do not sag or distort with heat. As a result, PoylCast Resins have been trusted for their high detail and repeatability by professional model makers, hobbyists, arts and craft enthusiasts, and industrial users for many years.

Each 2kg Polycast pack contains 1kg of resin and 1kg of hardener. These are mixed in equal measures and then poured into the mould. The resin cures, forming a robust plastic replica.

G26 Resin can also be purchased as part of the Sylmasta Casting Kit. Included in the Kit is Silicone Moulding Rubber for taking reusable moulds of items to be copied, Release Agent and other accessories to help create high-quality reproductions.

If you are new to the casting and moulding process, then you can find instructions in our Showcase article How to make and use a two-part silicone mould for resin casting.


Polycast G26 Polyurethane Medium Viscosity Casting Resin details:

  • Pot Life: 3 to 4 minutes
  • De-mould time: 30 minutes up to 10mm thick
  • Viscosity: 130 cps
  • Mixing ratio: 50:50


Benefits of G26 Polyurethane Casting Resin

  • Pot life of up to 4 minutes gives more time to work with than other PolyCast Resins
  • Suitable for casting larger parts of 0.5mm and upwards
  • Very low odour, unlike traditional polyester resins.
  • Available in custom colours beyond the standard beige and grey



  • Creating multiple copies of original and modified scale model parts
  • Reproducing parts as an alternative to individual machining or injection moulding
  • Making prototypes


Items cast using G26 Casting Resin


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