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BLUESIL CATA 24 H

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Standard tin catalyst for the Bluesil RTV condensation series with 24 h demolding time — mixing ratio 100:5.

Standard tin catalyst for the Bluesil RTV condensation series (3221, 3318, 3325, 3450) with 24 h demolding time — odorless, proven in lost-wax casting and decoration

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  • Number of components
  • consistency
  • Mixing ratio
  • UV resistance
  • Paint has hardened
  • Self-leveling
  • Density (g/cm³)
  • Viscosity uncrosslinked (mPa·s)
  • Electrical insulation
  • Potting time (min)
  • Demolding time (min)
  • Food contact
  • Suitable for medical use
  • Tensile strength (MPa)
  • Elongation at break (%)
  • Tensile strength (N/mm)

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Tin silicone BLUESIL ELKEM Swiss bearing catalyst standard condensation 24h demolding

 
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: 40-965.DO

HS code: 39100000

Internal reference: 40-965.DO
HS code: 39100000

BLUESIL CATA 24 H
BLUESIL CATA 24 H
Bluesil · Elkem Silicones · SKU 40-965.DO

Bluesil CATA 24 H is a standard tin catalyst for the Bluesil RTV condensation series (3221, 3318, 3325, 3450) with a 24 h demolding time — odorless, proven in lost-wax casting and 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 24 H is tailored to specific applications — the most important properties and areas of application can be found below.

Standard kinetics (24 h demolding)

Bluesil CATA 24H is the standard catalyst for the Bluesil RTV-2 condensation series — pot life 90–150 min, demolding after 24 h. Odorless, ideal for lost-wax casting, decoration and model making reproduction.

CATA 24 H in figures
24 h
demolding time
Sn
condensation
90–150 min
Potting time
Odorless
workplace

What distinguishes the CATA 24 H

Standard kinetics
Proven 24-hour catalyst for the Bluesil RTV condensing series.
Odorless
Pleasant workplace — no acetic acid smell.
5% dosage
5 parts per 100 parts RTV base — easy to dose.
Compatible
Bluesil RTV 3221, 3318, 3325, 3450 — Standard choice.
Long potting time
90–150 min — careful processing possible.

What is CATA 24 H used for?

lost-wax molds
Standard workflow in art and jewelry casting.
Decorative reproduction
Picture frames, decorations, statues.
Model making molds
Industrial model making and prototypes.
PU casting resin molds
With RTV 3318/3330 SPU for PU reproduction.
Construction replicas
Profiles, columns, stucco imitations.
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 24 H in comparison

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

CATA 24 H
Current product		 CATA 6 H →CATA SPU →CATA Hi-Pro Green →
Catalyst typetin catalystTin catalyst (Quick)Special sn catalyst (PU)Organotin carboxylate
ColorColorlessColorlessLight yellowGreen
Compatible RTVRTV 3221/3318/3325/3450RTV 3221/3318/3325/3450RTV 3318/3330/3335 SPUV-1060/V-1080 series
Mixing ratio100 : 5100 : 5100 : 510 : 1
Potting time90–150 min20–60 min150 min3 h
demolding time24 h6 h24 h16 h
Topics & Application Areas
Key terms related to this product. Also useful for our search and filters.
Tin silicone BLUESIL ELKEM Swiss bearing catalyst standard condensation 24h demolding

Technical data for BLUESIL CATA 24 H

All 20 product information 7 Further properties 1 Physical properties 4 Electrical properties 1 Curing values ​​2 Product approvals 2 Mechanical properties 3
Product information
brand Bluesil
Manufacturer Elkem Silicones
Networking type Condensation (tin)
Container 50 g, 250 g, 1 kg
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
Viscosity uncrosslinked (mPa·s) 35
Electrical properties
Electrical insulation No
Curing values
Potting time (min) 90
Demolding time (min) 24
Product approvals
Food contact No
Suitable for medical use No
Mechanical properties
Tensile strength (MPa) 4
Elongation at break (%) 450
Tensile strength (N/mm) 21

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) 2
Bluesil CATA 24H - Technical Data Sheet EN.pdf
145 KB
Bluesil CATA 24H - Fiche Technique FR.pdf
167 KB
Safety Data Sheets (SDS) 3
Bluesil CATA 24H - Safety Data Sheet DE.pdf
470 KB
Bluesil CATA 24H - Fiche de Sécurité FR.pdf
571 KB
Bluesil CATA 24H - Scheda di Sicurezza IT.pdf
562 KB

Frequently asked questions about CATA 24 H

Practical application and design questions — answered by SILITECH.

Bluesil CATA 24 H: Standard tin catalyst for the Bluesil RTV condensation series (3221, 3318, 3325, 3450) with a 24-hour demolding time — odorless, proven in lost-wax and decoration casting. Main applications: lost-wax molds, decoration reproduction, model-making molds.

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
Container 50 g or 250 g or 1 kg
brand Bluesil
Manufacturer Elkem Silicones
Networking type Condensation (tin)
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
Viscosity uncrosslinked (mPa·s) 35
Electrical properties
Electrical insulation No
Curing values
Potting time (min) 90
Demolding time (min) 24
Product approvals
Food contact No
Suitable for medical use No
Mechanical properties
Tensile strength (MPa) 4
Elongation at break (%) 450
Tensile strength (N/mm) 21
Keywords
Keywords
Tin silicone BLUESIL ELKEM Swiss bearing catalyst standard condensation 24h demolding
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: