Kit consists of 2.5kg of PART A and 2.5kg of PART B
Total kit volume 4.71 Litres
PART A and PART B are both clear liquids which are odourless and non-toxic. They react to form a flexible, elastic, transparent material with outstanding release properties, a high chemical resistance and a temperature resistance of 200°C. There is practically no shrinkage (0.08%) and excellent reproduction of fine detail. For optimal clarity try to keep mould walls to a maximum of 10mm thick. This rubber is suitable for casting a wide range of materials please see below for more details.
Available in three hardnesses; soft medium and firm. 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.
*The medium version will require a vacuum chamber if you require no visible bubbles in the rubber. Without a vacuum chamber the bubbles wont effect the use of the mould but being transparent will be visible in the walls of the mould.*
This product is not suitable for use with food. For a suitable product please click here
It may cause skin irritation 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 200°C. For a high temperature rubber click 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
| Properties | Units | Soft | Medium | Firm |
| Pot Life (25°C) | Minutes | 20-40 | 20-40 | 20-40 |
| Cure Time (25°C) | Hours | 3-5 | 3-5 | 3-5 |
| Viscosity (25°C) | Mpa.s | 6000 | 8000 | 6,200 |
| Density (25°C) | g/cm3 | 1.06 | 1.08 | 1.1 |
| Hardness | Shore A | 10 | 20 | 40 |
| Linear Shrinkage | % | 0.1 | 0.1 | 0.1 |
| Elongation at Break | % | 600 | 600 | 550 |
| Tensile Strength | Mpa | 2.2 | 3.2 | 7 |
THE FINISHED MOULD IS SUITABLE FOR USE WITH:
Polyurethane resin
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 (Will inhibit the cure of liquid platinum silicone, see below)
Waxes
Soaps
Metals with a pouring temperature below 250°C
*CURE INHIBITION*
A release agent will not create a sufficient barrier to prevent cure inhibition but a layer of paint will. If the paint is solvent based allow sufficient time for the solvent to completely evaporate off as that too can inhibit the cure
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, some printed plastics, onion and garlic.
Technical Data Sheet Safety Data Sheet Part A Safety Data Sheet Part B
