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SILISIL RTV PRO-Cast 33 TL

SILISIL RTV PRO-Cast 33 TL

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SILISIL RTV PRO-Cast 33 TL — Translucent premium casting silicone Shore A 33 for visual process control, available from Swiss warehouse.

2K silicone Shore A 33 (translucent, mixing ratio 1:1) — Translucent premium casting silicone Shore A 33 for visual process control.

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  • brand
  • Mixing ratio
  • Networking type
  • Paint has hardened
  • Self-leveling
  • Density (g/cm³)
  • Viscosity uncrosslinked (mPa·s)
  • Electrical insulation
  • Potting time (min)
  • Demolding time (min)
  • Full networking (h)
  • Food contact
  • Suitable for medical use
  • Certificates
  • Shore hardness A (cured)
  • Elongation at break (%)
  • Container

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SILISIL Silicone RTV-2 Swiss Bearing Addition Platinum Prototyping Swiss Brand 2K PRO-Cast Translucent Restoration Shore A 33

 
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 33 TL
SILISIL RTV PRO-Cast 33 TL
SILISIL ·

SILISIL RTV PRO-Cast 33 TL is a room temperature vulcanizing 2-component silicone from the PRO-Cast — Industrial Casting Series(Addition (Platinum), translucent, RTV-2) — Translucent premium casting silicone Shore A 33 for visual process control.

The mixture is prepared in a 1:1 ratio by weight . Pot life at 23 °C is approximately 20 minutes, demolding is possible after approximately 210 minutes, and complete curing takes 24 hours. Temperature resistant from -40 °C to +200 °C.

Key feature

Translucent premium casting silicone with visual process control — air inclusions and mold filling visible, very high tensile strength (tear resistance 18 N/mm) and elongation at break 430 %.

SILISIL RTV PRO-Cast 33 TL in figures
A 33
Shore hardness
7'500
mPa·s viscosity
20 min
Pot life @23 °C
430 %
Elongation at break

What makes SILISIL RTV PRO-Cast 33 TL stand out

Translucent for visual inspection
Air inclusions, mold filling and the embedded original are visible during processing and demolding.
High tensile strength >4.7 N/mm²
High tear resistance — robust against mechanical stress during demolding.
Tear resistance 18 N/mm
High tear resistance — robust against mechanical stress when demolding abrasive materials.
High elongation at break 430%
High elasticity — safe demolding of complex geometries without damage to the mold or the original.
Mixing ratio 1:1 by weight
Simple 1:1 ratio — mixable by hand without precision scales, ideal for workshops and hobbyists.
Good resistance to PU and acrylic resins

What is SILISIL RTV PRO-Cast 33 TL used for?

Jewelry and investment casting molds
Lost-wax casting process for goldsmiths with visual shape control — air inclusions and wax filling visible at all times.
Prototyping and model making forms
Industrial design and design studio replicas with a translucent shape for quality control during initial casting.
Art and craft castings
Artist studios and manufacturers with the highest standards of detail — fonts, microstructures and sharp edges rendered true to life.
Resin and acrylic resin casting
Polyurethane, epoxy and acrylic casting in designer studios — good resistance to aggressive resins with release agent.
Collector and special edition replicas
High-quality small-batch reproductions with translucency for multi-color casting and layer visual inspection.
Visual teaching models
Anatomical and didactic teaching models in which the internal structure of the form should remain visible.

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 210 minutes, 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, 25 kg + 25 kg, 200 kg + 200 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 33 TL in direct comparison with related products in our range (PRO-Cast — Industrial Casting Series).

PRO-Cast 33 TL
Current product		 PRO-Cast 33RD →PRO-Cast 45 →PRO-Cast 50 →
Shore hardness A33334550
Mixed viscosity7'5007'5008'00020'000
ColorTranslucentRedTranslucentGray
Pot life @23 °C20201215
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 Swiss Brand 2K PRO-Cast Translucent Restoration Shore A 33

Technical data for SILISIL RTV PRO-Cast 33 TL

All 17 product information 4 Physical properties 4 Electrical properties 1 Curing values ​​3 Product approvals 3 Mechanical properties 2
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 Translucent
Self-leveling Yes
Density (g/cm³) 1.09
Viscosity uncrosslinked (mPa·s) 7500
Electrical properties
Electrical insulation Yes
Curing values
Potting time (min) 20
Demolding time (min) 210
Full networking (h) 24
Product approvals
Food contact No
Suitable for medical use No
Certificates RoHS, REACH
Mechanical properties
Shore hardness A (cured) A 33
Elongation at break (%) 430

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 33 TL - Technical Data Sheet DE.pdf
125 KB
SILISIL RTV PRO-Cast 33 TL - Technical Data Sheet EN.pdf
125 KB
SILISIL RTV PRO-Cast 33 TL - Fiche Technique FR.pdf
125 KB

Frequently asked questions about SILISIL RTV PRO-Cast 33 TL

Practical application and design questions — answered by SILITECH.

SILISIL RTV PRO-Cast 33 TL is a 2K silicone from the PRO-Cast industrial casting series (Shore A 33, translucent). This translucent premium casting silicone (Shore A 33) allows for visual process control and is suitable for jewelry and investment casting molds and related applications.

At 23 °C, the pot life is approximately 20 minutes and the demolding time approximately 210 minutes. Complete curing takes 24 hours.

SILISIL RTV PRO-Cast 33 TL is an addition-based (platinum) translucent system. This addition-based system (platinum) is sensitive to sulfur, amine, tin, and phosphorus compounds. Avoid contact with latex gloves and PVC plasticizers.

SILISIL RTV PRO-Cast 33 TL 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 33 TL achieves a Shore A hardness of 33 (ASTM D 2240), a tensile strength of >4.7 N/mm² (ASTM D 412), an elongation at break of approximately 430 % and a tensile strength of 18 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 Translucent
Self-leveling Yes
Density (g/cm³) 1.09
Viscosity uncrosslinked (mPa·s) 7500
Electrical properties
Electrical insulation Yes
Curing values
Potting time (min) 20
Demolding time (min) 210
Full networking (h) 24
Product approvals
Certificates RoHS or REACH
Food contact No
Suitable for medical use No
Mechanical properties
Shore hardness A (cured) A 33
Elongation at break (%) 430
Keywords
Keywords
SILISIL Silicone RTV-2 Swiss Bearing Addition Platinum Prototyping Swiss Brand 2K PRO-Cast Translucent Restoration Shore A 33

Documents and datasheets

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