Silicones, silicone oils, sprays
Casting and potting resins)
HS Code:
3910.0000
Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Mechanical properties
- Shore hardness A
- 28 Shore A
- Tensile Strength
- 7.5 MPa
- Elongation at break
- 600 %
- Tear resistance
- 20 kN/m
- Linear shrinkage
- < 0.1 %
Processing
- Viscosity Component A
- 25’000 mPa·s
- Viscosity Component B
- 8’000 mPa·s
- Pot life at 23 °C
- 60 min
- Demolding time
- 960 min
Physical and thermal
- Density (23 °C)
- 1.1 g/cm³
- Temperature resistance (duration)
- -55 to 200 °C
- Peak temperature (briefly)
- 200 °C
Storage
- Shelf life in original packaging
- 20 months
- Storage Temperature
- -10 to 30 °C
Product Information
- Brand
- Bluesil
- Manufacturer
- Elkem Silicones
- Mixing Ratio
- 1:1
- Curing type
- Addition (Platinum)
- Number of components
- 2K (two-component)
- Consistency
- Flowable
- Mixing Ratio
- 10:1
- Container
- 1.1 kg, 5.5 kg, 22 kg
Further Properties
- UV resistance
- No
Physical Properties
- Cured Color
- White
- Self-leveling
- Yes
Electrical Properties
- Electrical Insulation
- Yes
Curing values
- Pot life (min)
- 30
- Demolding time (min)
- 240
Product Approvals
- Food contact
- No
- Medical grade
- No
Mechanical properties
- Shore hardness A (cured)
- A 28
Product Description
RTV 3428: Two-component addition-curing silicone elastomer for room-temperature curing, accelerable by heat.
RTV 3428 belongs to the BLUESIL RTV series from Elkem, the two-component silicones for mold making and impression taking. Technology: Addition-curing (platinum, 2K). Sales segment: All industries / Food..
Two-component addition-curing silicone elastomer for room-temperature curing, accelerable by heat.
What sets RTV 3428 apart
What is RTV 3428 used for?
Processing
Important Notes
- The currently valid Elkem data sheet (TDS and SDS) is authoritative, which we will be happy to send you.
RTV 3428 in comparison
RTV 3428 Current Product | RTV 3041 → | RTV 3325 (+ catalyst) → | RTV 3440 / 3445 / 3450 / 3450 QC → | |
|---|---|---|---|---|
| Crosslinking | Addition | Addition | Condensation | Addition |
| Color | white | translucent | white | translucent |
| Shore A | 28 | 38 | 25 | 40 to 50 |
| Duration °C | n.a. | n.a. | n.a. | n.a. |
Frequently asked questions about RTV 3428
Practical application and design questions, answered by SILITECH.
RTV 3428 is suitable for soft molding with high precision and long service life, thermal expansion cores for composite manufacturing (aerospace, shipbuilding), molds for chocolate, sugar, marzipan, baked goods, and confectionery products.
RTV 3428: Addition-curing (platinum, 2K).
According to the Elkem data sheet, it can be used as a release coating for food contact.