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BLUESIL Catalyseur 83 (40 g)

BLUESIL Catalyseur 83 (40 g)

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Special catalyst for Bluesil RTV 3325 P — mixing ratio 100:4.

Special catalyst for Bluesil RTV 3325 P — liquid-paste, yellow, for impressions of vertical or large models (archaeology, paleontology, decoration)

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  • UV resistance
  • Paint has hardened
  • Self-leveling
  • Density (g/cm³)
  • Electrical insulation
  • Food contact
  • Suitable for medical use
  • Tensile strength (MPa)
  • Elongation at break (%)
  • Tensile strength (N/mm)

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Tin silicone BLUESIL thixotropic ELKEM Swiss bearing catalyst condensation CATA 83

 
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

Internal reference: 40-929.TU

HS code: 39100000

Internal reference: 40-929.TU
HS code: 39100000

BLUESIL Catalyseur 83 (40 g)
BLUESIL Catalyseur 83 (40 g)
Bluesil · Elkem Silicones · SKU 40-929.TU

Bluesil Catalyseur 83 (40 g) is a special catalyst for Bluesil RTV 3325 P — liquid-paste, yellow, for impressions of vertical or large models (archaeology, paleontology, decoration).

Bluesil catalysts for crosslinking the Bluesil RTV series — tailored to the pot life, demolding time, and curing kinetics of the respective RTV family. CATA 83 is designed for specific applications — the most important properties and areas of application can be found below.

Special for RTV 3325 P (PuTTY)

Bluesil CATA 83 is the special catalyst for RTV 3325 P (putty variant) — specifically for impressions on vertical, overhanging, or oversized models. Proven in archaeology (bas-reliefs, statues), paleontology (fossils), and decoration.

CATA 83 in numbers
CATA 83
for RTV 3325 P
90 min
Potting time
16 h
demolding time
Yellow
Color

What makes the CATA 83 stand out

Special for RTV 3325 P
Paste version of the putty catalyst for overhanging impressions.
Vertical application
For models that cannot be moved.
Low shrinkage
Low linear shrinkage — dimensionally accurate impressions.
Anti-stick property
Easy demolding thanks to silicone properties.
4% dosage
4 parts out of 100 parts RTV 3325 P.

What is the CATA 83 used for?

Archaeological replicas
Reproduction of bas-reliefs and statues.
paleontology
Reproduction of fossils and stones.
decoration
Decorations, rosettes, statuettes, candles, advertising objects.
Vertical models
If the original cannot be moved.
restoration
Reproductions for the preservation of historical monuments.
Data sheets & safety data sheet
TDS and SDS in multiple languages ​​— watch or download directly.
To the documents →

processing

1
Stir up the RTV base
Homogenize the RTV base before adding the catalyst — avoid sedimentation of the fillers.
2
Dosing catalyst
Precise dosage: typically 5% w/w (see TDS for exact value). Dose by weight — volumetric dosing is inaccurate.
3
Mix carefully
Low-speed agitator — until no streak is visible (homogeneous color).
4
Degas
30–50 mbar vacuum for bubble-free crosslinking.
5
Process
Pour, smooth, or apply within the pot life — pot life depends on the catalyst and temperature.

Recommended accessories

Bluesil Additive PC Thixo
Thixotropy additive for Bluesil RTV 3325 (polycondensation) — vertical application.
View product →
Bluesil Diluant 2030
Low viscosity thinner for Bluesil RTV mixture viscosity adjustment.
View product →
Bluesil Inhibitor 3
Pot life extender for polyaddition silicone systems (Pt-Cure).
View product →

CATA 83 in comparison

Direct comparison with related catalyst products in our range. “— " = not specified in the data sheet.

CATA 83
Current product		 CATA 24 H →CATA 6 H →CATA Hi-Pro Green →
Catalyst typeSpecial catalysttin catalystTin catalyst (Quick)Organotin carboxylate
ColorLemon yellowColorlessColorlessGreen
Compatible RTVRTV 3325 PRTV 3221/3318/3325/3450RTV 3221/3318/3325/3450V-1060/V-1080 series
Mixing ratio100 : 4100 : 5100 : 510 : 1
Potting time90 min90–150 min20–60 min3 h
demolding time16 h24 h6 h16 h
Topics & Application Areas
Key terms related to this product. Also useful for our search and filters.
Tin silicone BLUESIL thixotropic ELKEM Swiss bearing catalyst condensation CATA 83

Technical data for BLUESIL Catalyseur 83 (40 g)

All 17 product information 7 Further properties 1 Physical properties 3 Electrical properties 1 Product approvals 2 Mechanical properties 3
Product information
brand Bluesil
Manufacturer Elkem Silicones
Networking type Condensation (tin)
Container 40 g
Number of components 1K (single-component)
consistency Flowable
Mixing ratio Single-component
Other features
UV resistance No
Physical properties
Paint has hardened Transparent
Self-leveling Yes
Density (g/cm³) 1.2
Electrical properties
Electrical insulation No
Product approvals
Food contact No
Suitable for medical use No
Mechanical properties
Tensile strength (MPa) 2.5
Elongation at break (%) 350
Tensile strength (N/mm) 9

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) 1
Bluesil CATA 83 - Technical Data Sheet EN.pdf
450 KB
Safety Data Sheets (SDS) 3
Bluesil CATA 83 - Safety Data Sheet DE.pdf
463 KB
Bluesil CATA 83 - Fiche de Sécurité FR.pdf
563 KB
Bluesil CATA 83 - Scheda di Sicurezza IT.pdf
553 KB

Frequently asked questions about CATA 83

Practical application and design questions — answered by SILITECH.

Bluesil Catalyseur 83 (40 g): Special catalyst for Bluesil RTV 3325 P — liquid-paste, yellow, for casting vertical or large models (archaeology, paleontology, decoration). Main applications: archaeological replicas, paleontology, decoration.

The standard dosage is 5 parts catalyst to 100 parts RTV base (5% w/w). The exact dosage affects the pot life and demolding time—see TDS for precise values. Important: too little catalyst leads to incomplete crosslinking; too much catalyst dramatically reduces the pot life and can impair the final properties. Stir both components thoroughly before mixing.

Store in the unopened original container in a dry, cool place — typically between +5 and +30 °C, see TDS for exact values. Consult the Safety Data Sheet (SDS) before use. Observe the expiry date on the packaging — Elkem guarantees the product's specifications only until the date shown.

The comparison table above lists related products with similar functions or specifications. If you are unsure which product is best, we would be happy to advise you — contact SILITECH with details of your application (desired properties, substrate, processing workflow).

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Our technical team will advise you personally on material selection, processing questions, and individual requirements. Quickly and competently.

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Product specifications

Product information
brand Bluesil
Manufacturer Elkem Silicones
Networking type Condensation (tin)
Container 40 g
Number of components 1K (single-component)
consistency Flowable
Mixing ratio Single-component
Other features
UV resistance No
Physical properties
Paint has hardened Transparent
Self-leveling Yes
Density (g/cm³) 1.2
Electrical properties
Electrical insulation No
Product approvals
Food contact No
Suitable for medical use No
Mechanical properties
Tensile strength (MPa) 2.5
Elongation at break (%) 350
Tensile strength (N/mm) 9
Keywords
Keywords
Tin silicone BLUESIL thixotropic ELKEM Swiss bearing catalyst condensation CATA 83
storage
Shelf life in original packaging12 months
Storage temperature5 to 30 °C

Documents and datasheets

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