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Masa de moldeado

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21 article   /   52 Variants
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  • Masa de moldeado universal de alginato
    2 Variants
    Masa de moldeado universal de alginato
    from 8,80 €
    Product description: casting compound made from algae extracts, Mixing ratio: powder-water 1:2, Working life: approx. 3 minutes, Safety information: suitable for skin contact
  • Alpa Sil EH 10:1
    4 Variants
    Alpa Sil EH 10:1
    from 10,50 €
    material: addition-crosslinked precison silicone rubber mould material, End state: cures to an opaque light blue colour, Working life: approx. 25 minutes
  • Pasta de látex
    2 Variants
    Pasta de látex
    from 14,60 €
    natural rubber based air drying single component casting material (dispersion), pre-vulcanized with ammonia, medium hard, very elastic, very high viscosity (can be brushed and troweled), cures to a opaque amber...
  • Leche de látex
    3 Variants
    Leche de látex
    from 9,20 €
    natural rubber-based air drying single component casting material (dispersion), pre-vulcanized with ammonia (0.3%), very soft (no Sh-A data available), extremely elastic, very low viscosity, cures to a translucent...
  • Látex Gedeo
     
    Látex Gedeo
    from 19,00 €
    air-curing, one-component, natural rubber based moulding material, pasty consistency, extremely elastic, applied in 4 layers, drying time is 6 hours
  • Neukasil RTV 22 F
    4 Variants
    Neukasil RTV 22 F
    from 52,80 €
  • Neukasil RTV 29
    4 Variants
    Neukasil RTV 29
    from 11,90 €
    addition-crosslinked precision silicone for moulds, very soft (app. 30 Sh-00), highly elastic, high mechanical stability, very low viscosity (good pourability), when cured the material is opaque white, mixing ratio...
  • Moulding set
     
    Moulding set
    from 30,50 €
  • Pasta de silicona para moldear Gedeo Siligum
    2 Variants
    Pasta de silicona para moldear Gedeo Siligum
    from 14,00 €
    quick setting two-component silicone moulding paste for making casting moulds for small and flat objects using plaster, casting resin, wax, etc., very pasty consistency (kneadable), light blue appearance, mixing ratio...
  • Alpa Sil V 66 1:1
    2 Variants
    Alpa Sil V 66 1:1
    from 33,00 €
    addition-crosslinked precison casting silicone, medium hard (25 Sh-A), highly elastic, good mechanical stability, very high viscosity (can be brushed and troweled), cures to an opaque green colour, mixing ratio of...
  • Polvo de talco
     
    Polvo de talco
    from 2,20 €
    white
  • Aceite de silicona V50
     
    Aceite de silicona V50
    from 9,90 €
    polydimethyl siloxane, low viscosity (50 mPa), colourless, density is 0.95 g/cm³
  • Köraform K 31 100:2
    2 Variants
    Köraform K 31 100:2
    from 10,50 €
    condensation-crosslinked silicone rubber moulding material, medium soft (ca. 23 Sh-A), highly elastic, very high degree of mechanical rigidity, low-viscosity (pourable), white and opaque when cured; mixing ratio of...
  • Protosil RTV 245 silicone
    4 Variants
    Protosil RTV 245 silicone
    from 11,90 €
    addition-crosslinked precision silicone for moulds, medium hard (app. 42 Sh-A), highly elastic, very high degree of stability, high viscosity (limited pourability), when cured the material is transparent, mixing...
  • Köraform A 50 T 10:1
    2 Variants
    Köraform A 50 T 10:1
    from 14,90 €
    addition-crosslinked precison casting silicone that is temperature-resistant (short term up to 250 °C), medium hard (approx. 43 Sh-A), highly elastic, good mechanical stability, low viscosity (pours well), cures to...
  • Alpa Megaplast 1:1
    2 Variants
    Alpa Megaplast 1:1
    from 16,90 €
    addition-crosslinked precison casting silicone, medium hard (approx. 35 Sh-A), elastic, relatively little mechanical stability, very high viscosity (pasty, kneadable), cures to an opaque skin colour, mixing ratio of...
  • Air-cured mould making compound
     
    Air-cured mould making compound
    from 5,70 €
    Product description: very soft and exact mould making compound, Attributes: air-drying, Colour: skin colour (caucasian)
  • Pigmentos para siliconas
    7 Variants
    Pigmentos para siliconas
    from 18,50 €
    highly concentrated pigment paste for colouring silicone casting material, non-poisonous
  • Set para modelar Gedeo
    5 Variants
    Set para modelar Gedeo
    from 21,90 €
    various set for casting and moulding projects
  • Alpa Tix A
     
    Alpa Tix A
    from 22,20 €
    thixotropic agent for addition-crosslinked RTV-2 silicone (yellowish liquid), dosage is 0.2% of the whole amount, density at 23 °C is 1.03 g/cm³, viscosity is approx. 1.500 mPa, shelf life with proper storage is at...
  • Alpa Tix C
     
    Alpa Tix C
    from 21,80 €
    thixotropic agent for condensation-crosslinked RTV-2 silicone (yellow-orange liquid), dosage is 2 % of the whole amount, density at 23 °C is 1.04 g/cm³, viscosity is approx. 150 mPa, shelf life with proper storage...
Información sobre Masa de moldeado

In order to reproduce objects – for example, sculptures, models, surface textures or body parts – a mould must be made from the so-called “master pattern”. Elastic materials are the most suitable for making these moulds. We have assembled a list of them under the heading “Moulding materials” which can be found under the category “Modelling, Moulding, Casting”. They are:

• RTV 2 mould silicone rubber
• elastic polyurethane resin
• Latex milk
• Alginate

The following tables can provide you with an overview of the advantages and disadvantages of the various moulding materials.

 

Comparison of elastic moulding materials


Attributes Comp./Treatment

RTV 2 mould silicone

Elastic PUR resin

Latex milk

Alginate
Number of components two two one one + water
Time and effort required very little very little very much very very little
Linear shrinkage very little very little very much very very little4)
Curing
  • reaction of 2 components
  • no heat produced
  • reaction of 2 components
  • heat produced
  • through drying

  • through “gelling”

Risk of inhibition yes no no no
Shelf life of the components (minimum) 6 to 12 months 12 months 24 months no information
Toxicological/hazard info as a rule, hazardous label NOT required2) as a rule, hazardous label required
hazardous label NOT required

hazardous label NOT required
Price high medium low low
Attributes when cured        
self-releasing yes no no no
Time before first use of the mould 1 day to 1 week approx. 4 days approx. 3 days approx. 20 minutes
Heat resistance high as a rule low low very low
UV resistance conditional low no no
Service life of the mould medium to long1) long short very short

Comments
       
Special features
  • can also be used as casting material


  • PUR components are sensitive to moisture
  • can also be used as casting material

  • smells like ammonia



  • mould must be kept wet
  • only good for a few pourings
Intended uses flexible and block moulds for all pouring materials flexible and block moulds for all pouring materials flexible moulds for non-aggressive pouring materials body casts without extensive quality demands

All the information refers primarily to the materials on offer at Modulor.
1) depending on the type of crosslink
2) Some hardeners require a hazardous label
3) at room temperature (annealing possible if applicable)
4) As long as pouring takes place within 20 minutes of making the mould

 

The listed materials can of course be used for other purposes – for example, silicone is used to make temperature resistant seals, elastic polyurethane to make foams and latex to make examination gloves.

Then again, hard, elastic materials like plaster are often used to make casts of objects. As a rule, very intricate moulds must be made for this work (see also the entry “Undercuts” in the “Small Lexicon” in the chapter “Silicone”).

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