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SILISIL Retarder A (1 kg)
SILISIL Retarder A — Additive for extending the pot life of platinum-curing 2K silicones.
SILISIL Retarder A — Pot life retarder for platinum-curing 2K silicone systems.
Adding it to component A extends pot life and curing time — ideal for larger casting formats. Available from Swiss stock.
Internal reference:
40-2360.FL.K001
HS code:
38123080
SILISIL Retarder A — Pot life retarder for platinum-curing 2K silicones
SILISIL Retarder A is a liquid additive for the targeted extension of the pot life and curing time of platinum-curing 2K silicone systems from the SILISIL series. The additive is mixed into the A component in a small dosage and shifts the reaction kinetics without affecting the final properties of the cured silicone.
The retarder is particularly suitable for larger casting volumes or difficult-to-access mold geometries where more processing time is required.
Product benefits
- Targeted extension of pot life — moderate to strong depending on dosage
- No effect on Shore hardness and mechanical end properties (with correct dosage)
- Liquid and easily mixable into component A
- Compatible with all platinum-curing SILISIL 2K systems
Typical applications
- Large molds: Casting processes with several kilograms of silicone volume
- Complex geometries: shapes with undercuts or difficult filling
- Vacuum processes: When additional time is needed for degassing
- Brush application: Multi-layered application done by hand
Processing and dosage
- Dosage: typically 0.1–2% based on component A (for exact range see TDS)
- Thoroughly mix into component A before adding component B
- A higher dosage proportionally extends pot life and curing time
- Excessive dosage can impair end cross-linking — preliminary tests recommended
storage
- Store in a cool, dry place in unopened original packaging
- Carefully close after opening
SILISIL Retarder A is supplied by SILITECH AG from a Swiss warehouse, in 1 kg bottles and larger containers on request.
Technical data for SILISIL Retarder A (1 kg)
| Product information | |
|---|---|
| brand | SILISIL |
| Networking type | Non-reactive |
| Container | 1 kg |
| Polymerization type | Addition-linking |
| Physical properties | |
|---|---|
| Paint has hardened | Transparent |
| Density (g/cm³) | 1.1 |
| Viscosity uncrosslinked (mPa·s) | 75 |
| Product approvals | |
|---|---|
| Food contact | No |
| Suitable for medical use | No |
| Certificates | RoHS, REACH |
For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.
No public documents are available.
We will gladly send you the TDS and SDS by email upon request; please submit a request.
Frequently asked questions about SILISIL Retarder A
Answers regarding dosage and use.
The extension depends on the dosage. At 0.5–1%, the pot life is typically extended by a factor of 1.5 to 3, depending on the basic system. Refer to the TDS for exact values and please conduct preliminary tests.
With correct dosage (below 2%), Shore hardness and mechanical properties are largely retained. At higher dosages, end-curing may remain incomplete.
SILISIL Retarder A is approved for use with all platinum-curing 2K silicones in the SILISIL series. It has no effect on condensation silicones (tin curing).
The retarder is first mixed into component A and distributed homogeneously. Only then is component B added. This prevents premature cross-linking.
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Product specifications
| Product information | |
|---|---|
| brand | SILISIL |
| Networking type | Non-reactive |
| Container | 1 kg |
| Polymerization type | Addition-linking |
| Physical properties | |
|---|---|
| Paint has hardened | Transparent |
| Density (g/cm³) | 1.1 |
| Viscosity uncrosslinked (mPa·s) | 75 |
| Product approvals | |
|---|---|
| Certificates | RoHS or REACH |
| Food contact | No |
| Suitable for medical use | No |
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