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SILISIL RTV MF-Flex 28
SILISIL RTV MF-Flex 28 — Moulding/mold making silicone, Shore A 28, platinum-curing, available from Swiss stock.
SILISIL RTV MF-Flex 28 — Moulding / Mold Making Shore A 28.
Shrink arm, precise, platinum-curing. Available from Swiss stock with SDS and TDS.
HS code:
39100000
SILISIL RTV MF-Flex 28 — Moulding / Mold Making (Shore A 28)
SILISIL RTV MF-Flex 28 is a two-component addition silicone rubber from the SILISIL Moulding-Flex range. Its platinum-curing formula delivers a low-shrinkage mold with excellent detail reproduction, high tear strength, and long mold life—the standard solution for professional mold making.
The Shore A hardness of 28 positions the product in the range of soft silicones (flexible shapes, skin simulation).
Product benefits
- 2K addition system with precisely calibrated mixing ratio
- Shrinkage-resistant and dimensionally stable even after extended periods of inactivity
- High tear and tear propagation strength
- Excellent detail reproduction, even at the microscopic level
- Long mold lifespan with proper processing
- Compatible with most common casting and molding materials
Typical applications
- Model and mold making: Molding of prototypes, models, sculptures and museum pieces
- Resin casting: Molds for polyurethane, epoxy and polyester castings
- Decoration: Molds for concrete, plaster and wax casts
- Food molds: Silicone molds for chocolate, sugar and baked goods (after appropriate certification testing)
- Industrial casting: Manually produced molds for small production runs
- Prototypes: Fast, precise reproduction of master models for design and development
Processing and mixing
- The exact mixing ratio, pot life and demolding time can be found in the technical data sheet (TDS) on this product page
- Before processing, stir both components separately and then mix thoroughly in the specified ratio
- Degassing under vacuum (30–50 mbar) eliminates air inclusions and improves surface quality
- Ideally, processing should take place at 23 °C and 40–60% relative humidity
- Contamination by sulfur, amines, tin catalysts or PVC must be avoided in platinum-crosslinked systems — they prevent curing
Storage and shelf life
- Store in unopened original packaging at 5–25 °C, in a dry place and protected from sunlight
- Shelf life from date of manufacture as stated in the TDS — typically 12–24 months
- Carefully reseal after opening
Included documentation
- Technical Data Sheet (TDS) in German, English and French
- Safety Data Sheet (SDS) according to REACH
- Batch certificate available upon request
SILISIL RTV MF-Flex 28 is tested and manufactured by SILITECH AG in Switzerland. Our silicone specialists are available at any time to advise you on the appropriate Shore hardness, the choice between the various SILISIL series, or formulation development.
Technical data for SILISIL RTV MF-Flex 28
| Product information | |
|---|---|
| Networking type | Addition (Platinum) |
| Container | 1kg + 100g, 5kg + 500g, 25kg + 2.5kg |
| Physical properties | |
|---|---|
| Paint has hardened | Red |
| Self-leveling | Yes |
| Electrical properties | |
|---|---|
| Electrical insulation | Yes |
| Product approvals | |
|---|---|
| Food contact | No |
| Suitable for medical use | No |
| Certificates | RoHS, REACH |
| Mechanical properties | |
|---|---|
| Shore hardness A (cured) | A 28 |
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 RTV MF-Flex 28
The most important answers regarding areas of application, processing and availability.
SILISIL RTV MF-Flex 28 is a molding/mold making silicone with a Shore hardness of A 28 and is primarily used for professional mold making, model casting and prototyping.
SILISIL RTV MF-Flex 28 is a molding/mold-making system based on platinum-curing 2K additives. The exact values are stored as product attributes and can be filtered in the shop.
SILISIL RTV MF-Flex 28 is designed for the above-mentioned industrial applications.
SILISIL RTV MF-Flex 28 is available from our Swiss warehouse in various container sizes — the exact fill quantities are listed as product variants on this page. For non-standard quantities or sample quantities, please contact our sales department.
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Our technical team will advise you personally on material selection, processing questions, and individual requirements. Quickly and competently.
Product specifications
| Product information | |
|---|---|
| Container | 1kg + 100g or 5kg + 500g or 25kg + 2.5kg |
| Networking type | Addition (Platinum) |
| Physical properties | |
|---|---|
| Paint has hardened | Red |
| Self-leveling | Yes |
| Electrical properties | |
|---|---|
| Electrical insulation | Yes |
| Product approvals | |
|---|---|
| Certificates | RoHS or REACH |
| Food contact | No |
| Suitable for medical use | No |
| Mechanical properties | |
|---|---|
| Shore hardness A (cured) | A 28 |
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