PolyCast G26 Polyurethane Casting Resin is a medium viscosity resin from Sylmasta

Casting Resins

Sylmasta Polycast Polyurethane Casting Resins are used by professional kit builders and industrial users to quickly and easily reproduce high-quality parts from a single master.

Polycast Casting Resins are ideal for reproducing parts from a single master in small production runs. They offer an alternative to injection moulding or individually machined parts.

Parts made with Polycast Resins have very low shrinkage and do not sag or distort with heat. The resins also have very low odour, unlike traditional polyester resins.

Sylmasta Casting Resins are available in standard beige or they can be colour matched to any RAL or PANTONE colour when custom made to order.

There is also Sylmasta ClearCast, a two-part, optically clear, non-yellowing polyurethane casting resin which is resistant to UV.

Sylmasta produce a range of Silicone Moulding Rubbers which have been desgined for use with Polycast Resin.

You can purchase both Moulding Rubber and Casting Resin together in a Sylmasta Casting Kit, containing all the products and equipment needed to begin resin casting.


Original Casting Resins (Standard Beige)
PolyCast G26 is a medium viscosity casting resin with a pot life of 3-4 minutes and a de-mould time of 30 minutes to 10mm
PolyCast G27 is a low viscosity casting resin with a pot life of 150 seconds and a de-mould time of 25 minutes to 10mm
Polycast G27LV is a very low viscosity casting resin with a pot life of 2 minutes and a de-mould time of 15 minutes to 10mm
Polycast G28 is a low viscosity casting resin with a pot life of 7-8 minutes and a de-mould time of 2 to 3 hours to 10mm
Polycast G27 White Casting Resin is a low viscosity casting resin with a pot life of 150 seconds which sets white
CPU31 ClearCast Resin is an optically clear, non-yellowing casting resin which is resistant to UV and used for making water clear casts

Coloured Casting Resins
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Ultra Clear Casting Resins
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