Gypsum & Plaster

Fine modeling plasters and hard casting plasters

In Bags and buckets. For moulds, castings, ceramic case molds, decoration, giftware etc.

Products

PlasterCast PlasterCast ... € 7.75 Buy now MarbleCast MarbleCast ... € 3.95 Buy now UltraCal UltraCal ... € 26.30 Buy now Ultracal100 Ultracal100 ... € 145.00 Buy now CalCast CalCast ... € 22.11 Buy now duoMatrix™ NEO duoMatrix™ NEO ... Buy now Gypsum Retarder Gypsum Retarder ... € 2.90 Buy now

MarbleCast Standard and Slow

This plaster is used in the production of statuary pieces and in architectural and interior decorative works, window/door ornamentals, decorative stone, columns, reproduction of statuary items, statues, fireplaces and other likewise pieces.

MarbleCast

BRIEF DESCRIPTION

This plaster is used in the production of statuary pieces and in architectural and interior decorative works, window/door ornamentals, decorative stone, columns, reproduction of statuary items, statues, fireplaces and other likewise pieces.

CONTENT

  • 99% Alpha Calcium Sulphate hemi-hydrate,
  • Retarder, crystal modifier, liquidator

FEATURES

  • Fine Snow White powder
  • Good physical properties
  • Smooth surface and excellent ornamentation
  • Hard surface characteristics
  • Excellent pickup of mold details
  • Fire resistant
  • Surface hardness: 87 shore D

USER INFORMATION

MarbleCast Standard - Plaster / water ratio: 100/25 to 100/30

  • Soaking time: 30 sec
  • Mechanical mixing time: 1 min
  • Beginning of set: 10 min
  • End of set: 13 min
  • Hardening time: 30 min

MarbleCast Slow - Plaster / water ratio: 100/25 to 100/30

  • Soaking time: 30 sec
  • Mechanical mixing time: 1 min
  • Beginning of set: 10 min - Beginning of set: 18 min
  • End of set: 25 min
  • Hardening time: 50 min

what is ultracal?

Videos

Youtube video JDeM1SsLULc

Why buy at FormX?

  • Dedication to Materials

    Dedication to Materials icon

    For over thirty years we have sought out the highest quality modelling, moulding and casting materials from around the world.

  • Inspiring + Unique

    Inspiring + Unique icon

    From silicones and resins to Jesmonite and special effects materials — a curated range for professionals, artists and makers.

  • Expert Advice

    Expert Advice icon

    Our sales team is widely known for their knowledge and dedication, supporting you in mould making, casting, sculpture and prototyping.

  • Shipping Across Europe

    Shipping Across Europe icon

    We ship from our warehouses in Amsterdam, Barcelona and Madrid to customers throughout Europe, from Greece up to Norway.

  • Amsterdam Original

    Amsterdam Original icon

    Founded in Amsterdam, FormX grew from a local art foundry into a major European supplier — with our roots firmly in the city.

Visa logo iDeal logo Mastercard logo Paypal logo FedEx logo DPD logo GLS logo
This website has been developed by Usecue B.V.
© 2026 FormX B.V.