Silicones, silicone oils, sprays
Casting and potting resins)
BLUESIL Catalyseur SPU
Catalyst for the condensation-curing RTV-2 mold-making silicones BLUESIL RTV 3318 SPU, 3330 SPU and 3335 SPU; mixing ratio base : catalyst = 100:5 by weight; for casting molds for PU serial parts.
With RTV 3318/3330/3335 SPU Shore A 18/30/35 after 96 h · pot life 150 min
Special sn catalyst for the Bluesil RTV 3318/3330/3335 SPU series — specifically for polyurethane casting resin mold reproduction with 24 h demolding
Internal reference:
40-969
HS code:
39100000
Bluesil Catalyseur SPU is a special Sn catalyst for the Bluesil RTV 3318/3330/3335 SPU series — specifically for polyurethane casting resin mold reproduction with 24 h demolding.
Bluesil catalysts for crosslinking the Bluesil RTV series — tailored to the pot life, demolding time, and curing kinetics of the respective RTV family. CATA SPU is tailored to specific applications — the most important properties and areas of application can be found below.
Bluesil CATA SPU is the special catalyst for the SPU series (RTV 3318/3330/3335 SPU) — tailored to the requirements of polyurethane casting resin mold reproduction. Pot life 150 min, demolding after 24 h, three hardness levels available (18/30/35 Shore A).
What distinguishes CATA SPU
What is CATA SPU used for?
Processing
Recommended accessories
CATA SPU in comparison
Direct comparison with related catalyst products in our range. "—" = not specified in the data sheet.
CATA SPU Current Product |
CATA 24 H → | CATA 6 H → | CATA Hi-Pro Green → | |
|---|---|---|---|---|
| Catalyst type | Special sn catalyst (PU) | Tin catalyst | Tin catalyst (Quick) | Organotin carboxylate |
| Color | Light Yellow | Colorless | Colorless | Green |
| Compatible RTV | RTV 3318/3330/3335 SPU | RTV 3221/3318/3325/3450 | RTV 3221/3318/3325/3450 | V-1060/V-1080 series |
| Mixing ratio | 100 : 5 | 100 : 5 | 100 : 5 | 10 : 1 |
| Pot life | 150 min | 90–150 min | 20–60 min | 3 h |
| Demolding time | 24 h | 24 h | 6 h | 16 h |
Technical data for BLUESIL Catalyseur SPU
| Product Information | |
|---|---|
| Brand | Bluesil |
| Manufacturer | Elkem Silicones |
| Mixing Ratio | 100:5 |
| Curing type | Condensation (tin) |
| Container | 100 g, 1 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 |
| Electrical Properties | |
|---|---|
| Electrical Insulation | No |
| Product Approvals | |
|---|---|
| Food contact | No |
| Medical grade | No |
Please refer to the technical data sheet (TDS) in the "Documents" tab for binding values.
Frequently asked questions about CATA SPU
Practical application and design questions — answered by SILITECH.
Bluesil Catalyseur SPU: Special tin catalyst for the Bluesil RTV 3318/3330/3335 SPU series — specifically for polyurethane casting resin mold reproduction with 24-hour demolding time. Main applications: PU casting resin molds, industrial PU reproduction, wax reproduction.
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 | 100 g or 1 kg |
| Brand | Bluesil |
| Manufacturer | Elkem Silicones |
| Mixing Ratio | 100:5 |
| 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 |
| Electrical Properties | |
|---|---|
| Electrical Insulation | No |
| Product Approvals | |
|---|---|
| Food contact | No |
| Medical grade | No |
| 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: