SILISIL RTV MF-Flex 28 Part B
SILISIL RTV MF-Flex 28 Part B — Molding silicone, Shore A 28, platinum-cured, available from our Swiss warehouse.
SILISIL RTV MF-Flex 28 Part B — Molding / Mold Making Shore A 28.
Shrink tube, precision-grade, platinum-cured. Shipped from our Swiss warehouse with SDS and TDS.
HS code:
39100000
SILISIL RTV MF-Flex 28 Part B — Molding (Shore A 28)
SILISIL RTV MF-Flex 28 Part B is a two-component addition-curing silicone rubber from the SILISIL Moulding-Flex series. Its platinum-curing formulation produces a low-shrinkage mold with excellent detail reproduction, high tear strength, and a long mold life—the standard solution for professional mold making.
With a Shore A hardness of 28, the product falls into the category of soft silicones (flexible molds, skin simulation).
product benefits
- 2K addition system with a precisely calibrated mixing ratio
- Shrink-resistant and dimensionally stable even after prolonged storage
- High tear and tear resistance
- Excellent detail reproduction, even at the microscopic level
- Long service life when installed properly
- Compatible with standard casting and impression materials
Typical applications
- Model and Mold Making: Casting of prototypes, models, sculptures, and museum artifacts
- Synthetic Resin Casting: Molds for Polyurethane, Epoxy, and Polyester Castings
- Decoration: Molds for concrete, plaster, and wax castings
- Food Molds: Silicone molds for chocolate, sugar, and baked goods (after appropriate certification testing)
- Industrial Casting: Handcrafted production molds for small-batch runs
- Prototypes: Fast, precise reproduction of master models for design and development
Processing and Mixing
- For the exact mixing ratio, pot life, and demolding time, please refer to the technical data sheet (TDS) on this product page
- Before use, stir both components separately and then mix them thoroughly in the specified ratio
- Degassing under vacuum (30–50 mbar) removes air pockets and improves surface quality
- Apply ideally at 23 °C and 40–60% relative humidity
- Contamination from sulfur, amines, tin catalysts, or PVC must be avoided in platinum-cured systems—they prevent curing
Storage and shelf life
- Store in the unopened original container at 5–25 °C, in a dry place and protected from direct sunlight
- Shelf life from the date of manufacture as specified in the TDS — typically 12–24 months
- Close tightly after opening
Included documentation
- Technical Data Sheet (TDS) in German, English, and French
- Safety Data Sheet (SDS) under REACH
- Batch certificate upon request
SILISIL RTV MF-Flex 28 Part B is tested and packaged by SILITECH AG in Switzerland. Our silicone specialists are always available to assist you with advice on the appropriate Shore hardness, choosing between the various SILISIL series, or formulation development.
Technical Specifications for SILISIL RTV MF-Flex 28 Part B
| product information | |
|---|---|
| container | 1 kg, 2.5 kg |
| network type | Addition (Platinum) |
| Physical properties | |
|---|---|
| Paint cured | red |
| Self-leveling | Yes |
| Mechanical properties | |
|---|---|
| Shore A hardness (cured) | A 28 |
| Electrical Properties | |
|---|---|
| Electrical insulation | Yes |
| product approvals | |
|---|---|
| Certificates | RoHS, REACH |
| food contact | No |
| Suitable for medical use | No |
For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.
No public documents available.
Upon request, we will be happy to send you the TDS and SDS via email. Please submit a request.
Frequently Asked Questions About SILISIL RTV MF-Flex 28 Part B
The most important answers regarding applications, processing, and availability.
SILISIL RTV MF-Flex 28 Part B is a molding silicone with a Shore A hardness of 28, primarily used for professional mold making, model casting, and prototyping.
SILISIL RTV MF-Flex 28 Part B is a molding system based on a platinum-curing two-component addition-cure formulation. The exact specifications are listed as product attributes and can be filtered in the store.
SILISIL RTV MF-Flex 28 Part B is designed for the industrial applications listed above.
SILISIL RTV MF-Flex 28 Part B is available from our Swiss warehouse in various container sizes—the exact sizes are listed as product variants on this page. For non-standard quantities or sample quantities, please contact our sales department.
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product specifications
| product information | |
|---|---|
| container | 1 kg or 2.5 kg |
| network type | Addition (Platinum) |
| Physical properties | |
|---|---|
| Paint cured | red |
| Self-leveling | Yes |
| Mechanical properties | |
|---|---|
| Shore A hardness (cured) | A 28 |
| Electrical Properties | |
|---|---|
| Electrical insulation | Yes |
| product approvals | |
|---|---|
| Certificates | RoHS or REACH |
| food contact | No |
| Suitable for medical use | No |
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