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SILISIL RTV PRO-Cast 50

SILISIL RTV PRO-Cast 50

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SILISIL RTV PRO-Cast 50 — Shore A 50, Grey, Mixing ratio 1:1, from Swiss warehouse.

2K silicone Shore A 50 (grey, mixing ratio 1:1) — Premium industrial silicone Shore A 50 with antistatic properties and microresolution.

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  • brand
  • Mixing ratio
  • Networking type
  • Paint has hardened
  • Self-leveling
  • Viscosity uncrosslinked (mPa·s)
  • Electrical insulation
  • Potting time (min)
  • Demolding time (min)
  • Food contact
  • Suitable for medical use
  • Certificates
  • Shore hardness A (cured)
  • Tensile strength (MPa)
  • Elongation at break (%)
  • Tensile strength (N/mm)
  • Container

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SILISIL Silicone RTV-2 Swiss Bearing Addition Platinum Prototyping Shore A 50 Swiss Brand 2K PRO-Cast Restoration

 
General Terms and Conditions.

Shipping usually within 1 to 3 business days
(availability will be confirmed after ordering)

. Express logistics. Fast and reliable within Switzerland & Europe.

Shipping from Swiss warehouse within 24 hours. Batch certificate. Invoice within 30 days (B2B). Technical support.
Shipping & Delivery

Usually 1 to 3 working days

Availability will be confirmed after order receipt.

Express logistics within Switzerland & Europe.

General Terms and Conditions →

Product data

HS code: 3910.0000

HS code: 3910.0000

SILISIL RTV PRO-Cast 50
SILISIL RTV PRO-Cast 50
SILISIL ·

SILISIL RTV PRO-Cast 50 is a room temperature vulcanizing 2-component silicone from the PRO-Cast — Industrial Casting Series(Addition (Platinum), antistatic, RTV-2) — Premium industrial silicone Shore A 50 with antistatic properties and microreproduction 2 microns.

The mixture is prepared in a 1:1 ratio by weight . Pot life at 23 °C is approximately 15 minutes, demolding is possible after approximately 3 hours, and complete curing takes 24 hours. Temperature resistant from -40 °C to +200 °C.

Key feature

Premium industrial silicone with detail reproduction down to 2 microns, dimensional change only −0.05%, antistatic properties and high voltage resistance >16.2 kV/mm.

SILISIL RTV PRO-Cast 50 in figures
A 50
Shore hardness
20'000
mPa·s viscosity
15 min
Pot life @23 °C
320 %
Elongation at break

What makes SILISIL RTV PRO-Cast 50 stand out

Final hardness Shore A 50 — highest printing precision
Highest final hardness in the pad printing range — most precise printing with minimal pad deformation.
Detail reproduction down to 2 microns
Microscopic detail reproduction for highest reproduction precision — the finest writing and structures are captured.
Dimensional change only −0.05%
Virtually no shrinkage — the shape remains exactly dimensionally accurate until the first impression.
High voltage resistant >16.2 kV/mm
High electrical insulation even under high voltage — suitable for electrical engineering and insulator applications.
Antistatic — volume resistance 6.5×10¹¹ Ω·m
Suitable for ESD-sensitive components in electronics manufacturing — controlled charge dissipation at the form contact.
Thermal conductivity 0.12 W/mK
Moderate thermal conductivity (0.12 W/mK) — suitable for applications with controlled heat dissipation.

What is SILISIL RTV PRO-Cast 50 used for?

Microreproduction with highest resolution
2-micron detail for microelectronic components, sensors and semiconductor replicas in high-precision industries.
Industrial high-precision tool molds
Minimal dimensional change (−0.05%) for tool shapes with highest repeatability.
ESD-sensitive component shapes
Antistatic silicone for semiconductor, sensor and microelectronics manufacturing — controlled charge dissipation.
High-voltage insulation
Dielectric strength >16.2 kV/mm for mold applications with high-voltage components and insulators.
Toolmaking to the highest standards
Premium choice for the most demanding tool master models in industrial and toolmaking.
Thermal management and electronics manufacturing
Industrial molds with moderate heat dissipation — housing and potting molds for PCB manufacturers and EMS providers.

processing

1
Prepare the original
Clean, dry and dust-free surface at 23 °C — cooler environments significantly extend pot life and curing time.
2
Mixing components
Stir the base and catalyst thoroughly before use. Weigh out 1:1 by weight. Mix thoroughly, including the sides and bottom of the container.
3
Vacuum venting
For a pore-free mold, briefly vent under vacuum — trapped air is removed and a smooth mold surface is guaranteed.
4
Process
Pour from a height of approximately 30 cm in a thin stream — minimal air inclusions.
5
Vulcanizing and demolding
At 23 °C, demolding is possible after approximately 3 hours, with complete hardening after 24 hours.
Data sheets & safety data sheet
Full TDS and SDS in DE, EN, FR — view or download directly.
To the documents →

Important instructions

Avoid crosslinking inhibitors
Addition system (platinum) — sensitive to sulfur, amine, tin, and phosphorus compounds. Avoid contact with latex gloves and PVC plasticizers.
Storage and shelf life
In its unopened original container, the product has a shelf life of at least 12 months when stored in a dry, cool place (10–25 °C). Consult the SDS before opening.
Available packaging
1 kg + 1 kg, 5 kg + 5 kg. Other container sizes available on request.
compatibility
Compatible with polyurethane, epoxy, and polyester casting resins. Apply a release agent to aggressive resins.

Recommended accessories

SILISIL Vaseline release paste white
Universal release agent for polyester, epoxy and polyurethane casts — protects the silicone mold from aggressive resins and extends the mold's lifespan.
View product →
SILISIL Silicone Remover
Cleaning agent for silicone residues on tools, models and work surfaces — gentle and effective.
View product →

Which silicone for which application?

SILISIL RTV PRO-Cast 50 in direct comparison with related products in our range (PRO-Cast — Industrial Casting Series).

PRO-Cast 50
Current product		 PRO-Cast 45 →PRO-Cast 33RD →PRO-Cast 33 TL →
Shore hardness A50453333
Mixed viscosity20'0008'0007'5007'500
ColorGrayTranslucentRedTranslucent
Pot life @23 °C15122020
Mixing ratio1:11:11:11:1
Topics & Application Areas
Key terms related to this product. Also useful for our search and filters.
SILISIL Silicone RTV-2 Swiss Bearing Addition Platinum Prototyping Shore A 50 Swiss Brand 2K PRO-Cast Restoration

Technical data for SILISIL RTV PRO-Cast 50

All 17 product information 4 Physical properties 3 Electrical properties 1 Curing values ​​2 Product approvals 3 Mechanical properties 4
Product information
brand SILISIL
Mixing ratio 1:1
Networking type Addition (Platinum)
Container 1kg + 1kg, 5kg + 5kg, 10kg + 10kg, 25kg + 25kg
Physical properties
Paint has hardened Gray
Self-leveling Yes
Viscosity uncrosslinked (mPa·s) 20'000
Electrical properties
Electrical insulation Yes
Curing values
Potting time (min) 15
Demolding time (min) 3
Product approvals
Food contact No
Suitable for medical use No
Certificates RoHS, REACH
Mechanical properties
Shore hardness A (cured) A 50
Tensile strength (MPa) 4
Elongation at break (%) 320
Tensile strength (N/mm) 12

For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.

Documents and datasheets

Click on a document for a preview or the download icon for a direct download.

Technical Data Sheets (TDS) 3
SILISIL RTV PRO-Cast 50 - Technical Data Sheet DE.pdf
151 KB
SILISIL RTV PRO-Cast 50 - Technical Data Sheet EN.pdf
156 KB
SILISIL RTV PRO-Cast 50 - Fiche Technique FR.pdf
157 KB

Frequently asked questions about SILISIL RTV PRO-Cast 50

Practical application and design questions — answered by SILITECH.

SILISIL RTV PRO-Cast 50 is a 2K silicone from the PRO-Cast industrial casting series (Shore A 50, gray). This premium industrial silicone (Shore A 50) features antistatic properties and microreproduction capabilities down to 2 microns, making it suitable for high-resolution microreproduction and related applications.

At 23 °C, the pot life is approximately 15 minutes and the demolding time approximately 3 hours. Complete curing takes 24 hours.

SILISIL RTV PRO-Cast 50 is an addition (platinum) antistatic system. This addition system (platinum) is sensitive to sulfur, amine, tin, and phosphorus compounds. Avoid contact with latex gloves and PVC plasticizers.

SILISIL RTV PRO-Cast 50 is mixed in a 1:1 ratio by weight (base to catalyst). Homogenize both components separately before mixing, then thoroughly incorporate them – including the container walls and bottom.

SILISIL RTV PRO-Cast 50 achieves a Shore A hardness of 50 (ASTM D 2240), a tensile strength of 4.0 N/mm² (ASTM D 412), an elongation at break of approximately 320% and a tensile strength of 12 N/mm (ASTM D 624).

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Product specifications

Product information
Container 1kg + 1kg or 5kg + 5kg or 10kg + 10kg or 25kg + 25kg
brand SILISIL
Mixing ratio 1:1
Networking type Addition (Platinum)
Physical properties
Paint has hardened Gray
Self-leveling Yes
Viscosity uncrosslinked (mPa·s) 20'000
Electrical properties
Electrical insulation Yes
Curing values
Potting time (min) 15
Demolding time (min) 3
Product approvals
Certificates RoHS or REACH
Food contact No
Suitable for medical use No
Mechanical properties
Shore hardness A (cured) A 50
Tensile strength (MPa) 4
Elongation at break (%) 320
Tensile strength (N/mm) 12
Keywords
Keywords
SILISIL Silicone RTV-2 Swiss Bearing Addition Platinum Prototyping Shore A 50 Swiss Brand 2K PRO-Cast Restoration

Documents and datasheets

Safety Data Sheets (SDS) and Technical Data Sheets (TDS) are available for download: