Addition-curing 2-component silicone rubber that cures at room temperature
TFC Silicone Rubber Type 2-1 is ideal for producing sophisticated, elastic and durable moulds with undercuts.
TFC Silicone Rubber Type 2-1 can be used to produce single- or multi-part moulds,
for casting original models made of wood, glass, metal, plastic, wax or ceramic casting compounds.
You can use all water-soluble casting materials in the moulds produced, such as
relief casting compounds such as Stewalin, Plastalin Super, Keraflott or plaster, Keramin, Alabit, modelling and model-making plaster, casting clay, cement, concrete, etc.
Soap casting compounds (soap glycerine) for making your own soap
or waxes for making candles can be used without any problems, as can casting with casting resins (resin).
In this case, you should pre-treat the mould with a release agent before pouring,
as casting resins can cause the mould to become brittle after repeated use.
In general, Type 2-1 silicone has a very long service life /p>
The silicone has not been tested for skin and mucous membrane compatibility, nor for use in conjunction with foodstuffs.
If you are looking for silicones to use in conjunction with food or for body moulding, please ask us.
We also have suitable materials for this in our range.
Properties and application:
- easy to work with
- easy mixing of the components 1:1 by weight
- very good flowability, mixture is easy to pour
- Cures into a durable, rubber-elastic vulcanised compound without exothermic reaction
- Short-term temperature resistance up to 150°C
- High tear resistance and high flexibility
- Very high level of detail in the reproduction
- Excellent non-stick effect for easy release of the models
- Suitable for use with larger, self-supporting moulds for impressions of all kinds
Further product information:
Colour: yellow (Component A) and white (Component B)
Mixing ratio: 1:1 by weight
Specific gravity: 1.18
Viscosity 4000 mPas
Mixing time at 23 degrees Celsius 1 minute
Working time (pot life) at 23 degrees Celsius 15 minutes
Curing time at 23 degrees Celsius 60 minutes
Shore A hardness after 24 hours 35 ± 2
Breaking load 4.2 ± 0.2 N/mm²
Elongation at break 310 ± 20%
Tensile strength 8.0 ± 1 N/mm²
Reproduction accuracy: 2 microns
Dimensional change after 24 hours 0.02%
Product advantages at a glance
- Applications
✓ Silicone for the production of larger self-supporting moulds of all kinds, for embedding oven-curing modelling compounds, and for the construction of honeycomb moulds for beekeeping supplies.
- Castable impression silicone
✓ With a Shore A hardness of 35, this vulcanising, liquid impression material is ideal for demanding and rubber-elastic silicone moulds.
- Properties
✓ Very high detail accuracy, durability and inherent stability, no exothermic reaction and minimal bubble formation. The silicone is heat-resistant up to 150°C for short periods.
Contents
✓ High-detail, non-sticky and odourless duplicating silicone in a 1:1 ratio of A (yellow) and B (white) components for duplicating with undercuts.
TFC Troll Factory Silicone 2 x 250 g
✓ Supplied in a practical squeeze bottle with a dosing cap. High-quality ingredients for true-to-life models – Quality Made in Germany.
General application
To produce silicone moulds, you must first determine what you wish to replicate and what casting material the object will be made of. This is of great importance, as there are different types of silicone with varying degrees of hardness and flexibility. Heat resistance is also an important factor. Please refer to the application areas and individual product properties of the silicones in the respective descriptions.
Once you have selected the appropriate silicone, the following materials should be prepared: moulding frame, modelling clay, object to be moulded, pouring container, wooden spoon (or similar), scales, separating vaseline, brush and a knife. Due to the short working times, place these within easy reach right at the start. The moulding frame should then be positioned so that there is at least 2 cm of space between the frame and the object. To seal the mould, roll out a layer of non-hardening modelling clay (e.g. plasticine) onto the base plate; any remaining gaps in the corners must also be sealed. The object can then be brushed with release vaseline and pressed into the compound at the base to secure it.
Next, the selected silicone is mixed in the ratio specified by the manufacturer (usually 1:1 by weight). Using a set of scales, the base (A) and the catalyst (B) can then be mixed in the specified ratio. Both components are then thoroughly mixed together for approx. 1 minute to form a homogeneous mass. The silicone is then poured evenly into the prepared moulding frame.
The final step is curing. Here, the silicone must cure completely within the time specified by the manufacturer, usually at 23°C. Once fully cured, the frame and the modelling clay can be removed. With a soft silicone, the object being moulded can be easily removed from the mould. If a medium-hard silicone has been chosen, it may be necessary to cut it with a knife. The resulting gap can be sealed with a rubber band during the subsequent casting process. The cured silicone mould can now be filled with various casting materials. These vary depending on the type of silicone rubber selected. Examples include ceramics, plaster, concrete, tin, food-grade materials, etc.