Kit Consists of 20kg Silicone + 600g Catalyst
Approximate Volume 19.06 Litres
| Ratio of Catalyst | Pot Life | Cure Time |
| 4% (4g per 100g) | 4-6 minutes | 1.5 - 2.5 hours |
| 3% (3g per 100g) | 15-20 minutes | 3-5 hours |
| 2% (2g per 100g) | 25-30 minutes | 7-10 hours |
*Supplied with 3% worth of catalyst*
This product is a tin/condensation cured rubber and has been formulated to be a high quality flexible, elastic material with exceptional tensional and tear strength. There is almost no shrinkage (0.2%) and excellent reproduction of fine detail without the use of a vacuum chamber due to its low viscosity. It has a long mould life with outstanding release properties. This rubber is suitable for casting a wide range of materials in particular casting resins which we can also supply. Please see the bottom of the listing for examples of suitable casting materials.
The kit comprises of a white base rubber and a purple catalyst which provides a visual aid to ensure that the material is thoroughly mixed. A clear catalyst is also available if that is your preference. We have also focused on minimizing the potential health risks to the user by formulating a non-toxic, non-flammable and virtually odourless catalyst unlike the majority of other condensation cure silicones that can use a toxic catalyst.
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 catalyst is a skin irritant making this product unsuitable for applying directly to human skin for life casting. For a suitable product please click here
The maximum operating temperature is 180°C. For a high temperature rubber click here
This is a condensation/tin cured rubber so cannot be used as a mould for addition/platinum cured silicone rubbers as it will inhibit its cure.
Additional catalyst can be purchased here
For creating a two part mould or moulding a glass object a release agent is required click here
Can be pigmented to a wide range of colours click here
It can be softened to your own requirements using this softening additive click here
Can be made thixotropic for applying to vertical surfaces or to over head objects click here
| Physical Properties | Medium Version | Soft Version |
| Viscosity mPas | 18,000 | 11,000 |
| Density | 1.08 | 1.08 |
| Tensile Strength Mpa | 4.5 | 4 |
| Elongation | 420% | 500% |
| Tear Strength kN/m | 28 | 25 |
| Shrinkage | 0.2% | 0.2% |
SUITABLE FOR USE WITH
Polyurethane resin *
(* Excl. some transparent polyurethanes, check with supplier of the resin if silicone moulds are suitable.)
Epoxy resin *
(* Excl. some epoxies, check with supplier of the resin if silicone moulds are suitable.)
Polyester resin
Acrylic resin
Plastisol (PVC)
Plaster
Cement
Polymer Clays
Waxes
Soaps
Metals with a pouring temperature below 180°C
Technical Data Sheet Safety Data Sheet Base Safety Data Sheet Catalyst
