TFC Silicone Type 2-1, medium-hard and slow

Item number: PT012

Elastic mould-making compound, medium-hard and slow. High-grade, economical and good quality.


container size

Starting from 22,90 €
45,80 € per 1 kg

including19% VAT , plus shipping

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There are variations of this item. Please select the variation you wish.

TFC silicone rubber type 2-1 is a medium-hard addition curing silicone that is very suitable for demanding, elastic and durable molds with pronounced undercuts. This material can be used to make one-piece or multi-part moulds and for moulding original models made of concrete, clay, wood, glass, metal, plastic, wax or ceramic casting compounds.

The two components are mixed in a 1:1 weight ratio. The mixture has a very good flowability and is therefore easy to pour. The mould produced in this way has a high tensile strength and flexibility, a very high level of detail in reproduction and excellent non-stick properties, which make it easier to release the models from the mould.

Technical data:
Colour: yellow (component A) and white (component B)
Mixing ratio: 1:1 according to weight proportions
Specific gravity: 1.2 g/cm
Viscosity: 3000 - 4000 mPas
Mixing time at 20C: 1 minute
Working time (pot life) at 20C: 14 - 17 minutes (100 g)
Curing time (demoulding time) at 20C: 90 minutes
Shore A hardness after 24 hours: 35 2
Breaking load (tensile strength): 4.5 0.2 N/mm
Elongation at break: 500 20 %
Tear strength: 13 1 N/mm
Dimension change after 24 hours: < 0.02 %
Shelf life: at least one year

Attention: When working with addition-curing silicone rubbers, make sure that clean and dry containers are used. 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, plasticizers, amines, heavy metals and sulphur-containing kneading compounds. At the contact surfaces between addition-curing silicone and the substances mentioned, vulcanization problems then 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.

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Pot life: 15 - 25 min
Shore A hardness: 31 - 40
Elongation at break: 450 - 600 %
Tear strength: 10 - 15 N/mm
Contents: 500,00 g

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