1-2-1 Easy Mould 10kg kit

Kit consists of 5kg of PART A and 5kg of PART B 

Total kit volume 9.259 Litres

PART A and PART B are both clear liquids which are odourless and non-toxic. The two components mix easily with a simple 1:1 ratio and because of the low viscosity can be used without a vacuum chamber. They react to form a translucent beige coloured flexible, elastic material with high tensional and tear strength. 

There is practically no shrinkage (0.1%) and excellent reproduction of fine detail. Being an addition/platinum cured rubber its chemical and heat resistance (250°C) properties are superior to tin/condensation cure rubbers translating into a longer mould life. 

The pot life is approximately 8-12 minutes and the cure time is 1-2 hours.

This rubber is suitable for casting a wide range of materials please see below for more details. 

Available in two hardnesses, soft and medium. The soft is better suited to moulding delicate, fragile items where the rubber needs to be soft and flexible enough to peel off without damaging the casting. The medium is suitable for the majority of cases.

This product is not suitable for use with food. For a suitable product please click here

The product is not recommended for applying directly to human skin for life casting. For a suitable product please click here

The colour of the cured rubber can be changed with the addition of a colour pigment during the mixing of the two components. We have a range of compatible colour pigments

It can be softened further to your own requirements using this softening additive click here

It can be made thixotropic for applying to vertical surfaces or to over head objects click here

 Pot Life (25°C)Minutes
Cure Time (25°C)Hours1-2
Viscosity (25°C)Mpa.s50008000
 Density (25°C)g/cm31.081.08
HardnessShore A1528
 Linear Shrinkage%0.10.1
Tear StrengthKN/m2424
 Elongation at Break%500
Tensile StrengthMpa5.5


  • Food
  • Sugar craft & confectionery
  • Life casting
  • Polyurethane resin
  • Epoxy resin
  • Polyester resin
  • Acrylic resin
  • Plastisol (PVC)
  • Plaster
  • Cement
  • Polymer clays
  • Waxes
  • Soaps
  • Metals with a pouring temperature below 250°C


Great care must be taken when handling and mixing all addition-cured silicone elastomer systems. All the mixing tools (vessels and spatulas) should be clean and constructed in materials which do not interfere with the curing mechanism. The cure of the rubber can be inhibited by the presence of compounds of nitrogen, sulphur, phosphorus and arsenic; organotin catalysts and PVC stabilisers; epoxy resin catalysts and even contact with materials containing these substances e.g. moulding clays, sulphur vulcanised rubbers, condensation cure silicone rubbers, onion and garlic.

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