Description
TROLLFACTORY - Type 3 HB - Moulding silicone for pewter casting - 500g
TFC Troll Factory Silicone Rubber Type 3 HB for pewter casting, heat-resistant RTV 1:1
Addition-curing 2-component silicone rubber that vulcanises at room temperature
TFC Silicone Rubber Type 3 is very well suited for the production of heat-resistant moulds (short-term, at the time of casting; no long-term temperature resistance) for casting with low-melting-point metals.
At the same time, the moulds are elastic, durable and also suitable for reproducing undercuts.
TFC Silicone Rubber Type 3 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.
The moulds produced can be used with all water-soluble casting materials, 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.
You can also cast using low-melting-point metals.
In this case, ensure the mould is completely dry and treat it with talcum powder as a release agent and flow aid before each casting.
This will give you better casting results and protect the mould from burning.
The silicone has not been tested for skinand 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 components 1:1 by weight
- very good flowability, mixture is easy to pour
- cross-linking to form a durable, rubber-elastic vulcanisate without exothermic reaction
- Short-term temperature resistance up to 450 degrees Celsius
- High tensile strength and high flexibility
- Very high level of detail in reproduction
- For the production of moulds for casting with low-melting metals (tin, lead)
Further product information:
Colour: red (Component A) and white (Component B)
Mixing ratio: 1:1 by weight
Specific gravity: 1.17
Viscosity 6000 ± 300 mPas
Mixing time at 23 degrees Celsius 1 minute
Working time (pot life) at 23 degrees Celsius 10 minutes
Curing time at 23 degrees Celsius 90 minutes
Shore A hardness after 24 hours 33 ± 2
Breaking load 4.5 ± 0.2 N/mm²
Elongation at break 370 ± 20%
Tensile strength 10 ± 1 N/mm²
Reproduction accuracy: 2 microns
Dimensional change after 24 hours 0.02%
Product advantages at a glance
- Castable impression silicone
✓ Vulcanising, liquid impression material for high-quality, rubber-elastic silicone moulds with a Shore A hardness of 33.
Contents
✓ Highly detailed, non-sticky duplicating silicone with high tear resistance. Mixing ratio of 1:1 for components A (red) and B (white).
Properties
✓ Short-term temperature resistance up to 450 °C, no exothermic reaction, low odour. With anti-stick effect and very high detail accuracy.
Applications
✓ Casting with low-melting metals such as tin and lead. Casting of figures, plumb bobs, pewter jewellery, etc. Ideal moulding compound for industry and hobbyists.
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, foodstuffs, etc.
