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Yeso

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  • Yeso de colada cerámico Artestone
    2 Variants
    Yeso de colada cerámico Artestone
    from 8,30 €
    high quality casting powder, mixing ratio of powder to water is 4:1, working life: 8-10 minutes, curing time: approx. 30 min., expansion: 0.3%, surface hardness (cured): >300 N/mm², 1000 g powder result in 600 ml...
  • Yeso para modelar
    3 Variants
    Yeso para modelar
    from 2,00 €
    white, comes in paper sack with foil insert
  • Vendas enyesadas
    3 Variants
    Vendas enyesadas
    from 11,50 €
    white
  • Yeso resina Gedeo
     
    Yeso resina Gedeo
    from 9,90 €
    extra hard, high-quality alpha plaster, synthetic resin bonded, bright white, fine grained, non-clumping, mixing ratio of powder to water is 3:1; setting time is 8 – 15 minutes, demoulding time is 30 minutes,...
  • Yeso duro Gedeo
     
    Yeso duro Gedeo
    from 7,70 €
    a harder and higher quality alpha plaster for artistic castings, course grain, does not clump; mixing ratio of powder to water is 2.5:1, setting time is 8 – 15 minutes, demoulding time is 30 minutes, takes...
Información sobre Yeso

Uses: Plaster is not only good for fixing broken bones but is a great material for many creative purposes as well. It can be used in model making or handicrafts either as a natural product (made from burned selenite) or as a recycled material (so-called REA plaster which comes from a flue-gas desulphurizing facility).

Treatment: Plaster will cure after only a really short working life of a few minutes. In doing so, temperatures of over 50 °C will occur. In liquid form, plaster can be poured into moulds like, for example, ones made of SILICONE RUBBER. Liquid plaster can be coloured by means of PIGMENTS or, subsequent to curing, painted with most commercial paints (including water-based paint).

Once plaster has solidified, you cannot make it pliable again by adding water because it will never become solid again. By adding cellulose paste (WALLPAPER PASTE) the setting time can be increased somewhat.

If you want to do additional work on a cured plaster piece you must soak the area with water. The plaster will then be amenable to reworking with the appropriate tool without the piece itself breaking. Once dried, plaster models can be sawn, drilled, filed, cut, sanded, etc. Before subsequently levelling out the surface with more material, the plaster should be made moist because otherwise the second coat will not hold.

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