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Finsil 134 is a polycondensation silicone with a hardness of 23-37 shore A. Its low viscosity and high precision make it ideal for molds with low undercuts.

 26,25 503,13 HT

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Finsil 134 is a two-component, condensation-curing silicone rubber.

Its high precision, good elongation and exceptional tear resistance make it the silicone of choice for molds with low undercuts.

This silicone allows the casting of base materials such as gypsum-based products, waxes or reconstituted stone, but is also suitable for polyester, epoxy or polyurethane resin replicas.

Finsil 134 is accompanied by its catalyst, finsil catalyst 134. It allows a working time of 45′.

Thanks to the addition of finsil 134 thixo, this silicone can be thickened for vertical molding or for stamping molds.

Silicone can be colored with our strong pigments and universal pigments.



Mixing ratio: 5% (e.g. 100gr base + 5gr catalyst).

Pot life: > 8′ (catalyst fast) or > 45′ (catalyst slow).

Density at 25°C (gcm-3): 1.04 – 1.14

Hardness (shore A): 23 – 27

Viscosity (mPa.s): 20,000 – 26,000

Tensile strength (MPa): 3.8 – 4.2

Tear strength (kN/m): 15 – 20

Elongation (%): 500-550

Color: White (silicone), translucent blue (catalyst slow), pink (catalyst fast)

Linear shrinkage (%): < 1.0.

Demolding: 4 – 6h (catalyst fast), 12-24h (catalyst slow).

Shelf life: 6 months in closed packaging between 15°C and 25°C.

If the surface of the model to be reproduced is porous, cover it with a suitable release agent (black soap, wax, spray release agent, etc.).

In a clean, dry container, weigh out the quantity of silicone required and calculate an addition of 5% catalyst (e.g.: 100gr silicone + 5gr catalyst).

Shake the catalyst bottle before adding it to the silicone.

Using a spatula, mix the two components until a homogeneous paste is obtained.

With mechanical assistance, keep at low speed (300 to 500 rpm) for 2 to 3 min. and keep the mixer head in the silicone to limit the incorporation of air bubbles.

After checking that the formwork is watertight, pour the silicone onto the model to be reproduced.

Aim for the lowest point and pour the silicone in a thin vein.

The first coat can be applied directly with a brush, followed by

proceed to filling.

Allow the silicone to harden at room temperature.

You can unmold the next day.

For resin prints, it’s best to let the mold dry for 2 days, to ensure full chemical and mechanical resistance.

After use, reseal jars and store in a cool, dry place.

Do not clean the instruments, as you will remove the silicone as soon as it dries.


Wear gloves.

Eye contact: rinse eyes thoroughly with running water. Consult a doctor if irritation persists.

Skin contact: Wash thoroughly with soap and water. Remove and wash contaminated clothing. Consult a doctor if you develop a rash.

Ingestion: do not induce vomiting unless told to do so by a doctor. Seek medical advice.