BLUESIL CATA 24 H
Catalyst (hardener) with standard kinetics for the condensation-curing RTV-2 mold-making silicones BLUESIL RTV 3325 and RTV 3310; mixing ratio base : catalyst = 100:5; for molds for serial parts made of gypsum and resins.
With RTV 3325 Shore A 25 after 96 h · pot life 90–150 min
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
Documents
HS Code:
39100000
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.
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.
What distinguishes the CATA 24 H
What is CATA 24 H used for?
Processing
Recommended accessories
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 type | Tin catalyst | Tin catalyst (Quick) | Special sn catalyst (PU) | Organotin carboxylate |
| Color | Colorless | Colorless | Light Yellow | Green |
| Compatible RTV | RTV 3221/3318/3325/3450 | RTV 3221/3318/3325/3450 | RTV 3318/3330/3335 SPU | V-1060/V-1080 series |
| Mixing ratio | 100 : 5 | 100 : 5 | 100 : 5 | 10 : 1 |
| Pot life | 90–150 min | 20–60 min | 150 min | 3 h |
| Demolding time | 24 h | 6 h | 24 h | 16 h |
Technical data for BLUESIL CATA 24 H
| Product Information | |
|---|---|
| Brand | Bluesil |
| Manufacturer | Elkem Silicones |
| Curing type | Condensation (tin) |
| Container | 50 g, 250 g, 1 kg, 20 kg |
| Number of components | 1K (one-component) |
| Consistency | Flowable |
| Mixing Ratio | One-component |
| Further Properties | |
|---|---|
| UV resistance | No |
| Physical Properties | |
|---|---|
| Cured Color | Transparent |
| Self-leveling | Yes |
| Density (g/cm³) | 1.2 |
| Uncrosslinked viscosity (mPa·s) | 35 |
| Electrical Properties | |
|---|---|
| Electrical Insulation | No |
| Curing values | |
|---|---|
| Pot life (min) | 90 |
| Demolding time (min) | 24 |
| Product Approvals | |
|---|---|
| Food contact | No |
| Medical grade | No |
| Mechanical properties | |
|---|---|
| Tensile strength (MPa) | 4 |
| Elongation at break (%) | 450 |
| Tear strength (N/mm) | 21 |
Please refer to the technical data sheet (TDS) in the "Documents" tab for binding values.
Documents and data sheets
Click on a document for the preview or the download icon for direct download.
Technical Data Sheets (TDS) 2
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.
Standard dosage is 5 parts catalyst per 100 parts RTV base (5% w/w). The exact dosage affects the pot life and demolding time — see the TDS for the exact values. Important: too little catalyst leads to incomplete crosslinking, too much catalyst dramatically shortens 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 standard between +5 and +30 °C, exact values see TDS. Consult the Safety Data Sheet (SDS) before use. Observe the expiration date on the packaging — Elkem guarantees the sales specifications only up to the stated date.
In the comparison table above, you will find related products with similar functions or related specifications. If you are unsure about the optimal choice, we will be happy to advise you — contact SILITECH with your application (desired property, substrate, processing workflow).
Your question not covered?
Our technical team provides personal advice on material selection, processing questions, and individual requirements. Fast and competent.
Product Specifications
| Product Information | |
|---|---|
| Container | 50 g or 250 g or 1 kg or 20 kg |
| Brand | Bluesil |
| Manufacturer | Elkem Silicones |
| Curing type | Condensation (tin) |
| Number of components | 1K (one-component) |
| Consistency | Flowable |
| Mixing Ratio | One-component |
| Further Properties | |
|---|---|
| UV resistance | No |
| Physical Properties | |
|---|---|
| Cured Color | Transparent |
| Self-leveling | Yes |
| Density (g/cm³) | 1.2 |
| Uncrosslinked viscosity (mPa·s) | 35 |
| Electrical Properties | |
|---|---|
| Electrical Insulation | No |
| Curing values | |
|---|---|
| Pot life (min) | 90 |
| Demolding time (min) | 24 |
| Product Approvals | |
|---|---|
| Food contact | No |
| Medical grade | No |
| Mechanical properties | |
|---|---|
| Tensile strength (MPa) | 4 |
| Elongation at break (%) | 450 |
| Tear strength (N/mm) | 21 |
| Keywords | |
|---|---|
| Keywords | |
| Storage | |
|---|---|
| Shelf life in original packaging | 12 months |
| Storage Temperature | 5 to 30 °C |
Documents and data sheets
Safety Data Sheets (SDS) and Technical Data Sheets (TDS) for download:


Silicones, silicone oils, sprays
Casting and potting resins