TFC Silicone Rubber Type 14 is a medium-hard and transparent addition-curing silicone that is very suitable for demanding, elastic and hard-wearing moulds with pronounced undercuts. This material can be used to produce single-part or multi-part moulds and used for casting original models made of concrete, clay, wood, glass, metal, plastic, wax or ceramic casting compounds.
Because of its very high degree of further tear resistance, this silicone is particularly suitable for one-piece moulds of complicated models that have to be cut open afterwards to enable demoulding. It has excellent resistance to vacuum casting resins.
In addition to the excellent casting clays from the Moertelshop, all water-based casting materials such as Stewalin, Plastalin Super, Keraflott, Keramin, Alabit, modelling and modelling plaster and casting clay can also be cast in the moulds produced. Soap moulding compounds (soap glycerine), waxes for making candles and casting resins (resin) are also possible when using our suitable release agents and additives.
The two components are mixed in a weight ratio of 10:1. The mixture has very good fluidity and is therefore easy to pour. The mould produced in this way has a high degree of rigidity and flexibility, a very high level of detail in reproduction and excellent non-stick properties, which make it easier to remove the models from the mould.
Technical data:
Colour: colourless (component A) and colourless (component B)
Mixing ratio: 10:1 by weight
Specific weight: 1.1 g/cm³
Viscosity: 55000 - 60000 mPas
Mixing time at 23°C: 2 minutes
Processing time (pot life) at 23°C: 40 - 60 minutes
Curing time (demoulding time) at 23°C: 24 hours
Shore A hardness after 24 hours: 42 ± 2
Breaking load (tensile strength): 6.0 ± 0.2 N/mm²
Elongation at break: 400 ± 20 %
Tear strength: 23 ± 1 N/mm
Heat resistant (short term) up to: 150°C
Dimensional change after 24 hours: 0.1 %
Shelf life: at least one year
Attention: When working with addition-curing silicone rubbers, make sure to use clean and dry containers. The surface of the object to be moulded should also be as dry and free of impurities as possible. Certain substances can prevent or slow down the curing of addition-curing silicone. These include condensation-curing silicones, organic rubbers, plasticisers, amines, heavy metals and kneading compounds containing sulphur. At the contact surfaces between the addition-curing silicone and the above-mentioned substances, vulcanisation disorders occur, which render the mould and often also the model unusable. In case of doubt, it is strongly recommended to check the material compatibility in a small preliminary test.
OUR TIP: When selecting the right impression material for your application, please also refer to our TROLL COMPARISON TABLE. All silicone compounds available in the Moertelshop are compiled there from the extensive TROLL-FACTORY range.
Buy professional moulding compounds and accessories for art, design, building and crafting with concrete from us at a fair price and take advantage of our unbeatably low shipping costs.
