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CAF 730 MF
Elkem Silicones CAF 730MF is a one-component, thixotropic silicone elastomer that cures simply by contact with atmospheric humidity at room temperature and is suitable for adhesive applications.
Oxime-curing 1K silicone sealant (thixotropic, white) — low odor, corrosion-free for aerospace and electronics
Documents
HS code:
39100000
ELKEM CAF 730 MF is an oxime-curing 1K silicone sealant (thixotropic, white) — low odor, corrosion-free for aviation and electronics.
The Elkem CAF range comprises one-component (1K), neutral (oxime) curing silicone sealants — low-odor, non-corrosive, with excellent dielectric properties. CAF 730 MF is tailored to specific industrial applications — the most important properties and areas of application are listed below.
CAF 730 MF crosslinked by oxime cleavage — low odor in the workplace, non-corrosive, excellent dielectric properties. The established choice for aerospace maintenance and electronic component bonding.
What makes the CAF 730 MF stand out
What is the CAF 730 MF used for?
processing
Recommended accessories
Important instructions
CAF 730 MF compared to related CAF products
Networking, mechanics, and temperature directly next to each other — all values from the official Elkem TDS. “— " = not specified in the datasheet.
CAF 730 MF Current product |
CAF 731 → | CAF 530 White → | CAF 530 Black → | |
|---|---|---|---|---|
| Networking system | 1K Neutral (Oxim) | 1K Neutral (Alkoxy) | 1K Neutral (Alkoxy) | 1K Neutral (Alkoxy) |
| Color | White | White | White | Black |
| Shore A hardness | 25 | 40 | 34 | 34 |
| Elongation at break | 400 % | 420 % | 450 % | 450 % |
| Tensile strength | 1.9 MPa | 3.3 MPa | 3.5 MPa | 3.5 MPa |
| Tear resistance | 4.0 kN/m | 13 kN/m | 15 kN/m | 15 kN/m |
| Skin formation time | 7 min | 10 min | 10–15 min | 10–15 min |
| Continuous operating temperature. | +200 °C | +150 °C | +180 °C | +180 °C |
| Peak temperature | +225 °C | +180 °C | +200 °C | +200 °C |
| Main application | Aviation maintenance | Aviation bonding | Electronic bonding | Electronics with a black look |
Technical data for CAF 730 MF
| Product information | |
|---|---|
| brand | CAF |
| Networking type | Single-component (humidity) |
| Container | 100 g, 310 ml |
| Number of components | 1K (single-component) |
| consistency | Thixotropic |
| Mixing ratio | Single-component |
| Manufacturer | Elkem Silicones |
| Other features | |
|---|---|
| UV resistance | No |
| Physical properties | |
|---|---|
| Paint has hardened | White |
| Self-leveling | No |
| Electrical properties | |
|---|---|
| Electrical insulation | Yes |
| Product approvals | |
|---|---|
| Food contact | No |
| Suitable for medical use | No |
For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.
Documents and datasheets
Click on a document for a preview or the download icon for a direct download.
Technical Data Sheets (TDS) 3
Frequently asked questions about CAF 730 MF
Practical application and design questions — answered by SILITECH.
ELKEM CAF 730 MF: Oxime-curing 1K silicone sealant (thixotropic, white) — low odor, corrosion-free for aerospace and electronics. Main applications include aerospace maintenance, electronics bonding, and metal-plastic joining.
Oxime crosslinking is a neutral, one-component crosslinking chemistry that crosslinks through atmospheric moisture and releases only small amounts of oxime. Advantages include low odor in the workplace, non-corrosive to metals, excellent dielectric properties, and thermal stability—making it ideal for use in aerospace maintenance and electronic bonding with corrosion-sensitive components. CAF 7037 MF is also MEKO-free (methyl ethyl ketoxime-free) and therefore REACH compliant without MEKO labeling.
CAF 730 MF adheres without primer to glass, ceramics, many metals (stainless steel, aluminum, copper in neutral variants), and numerous engineering plastics. Adhesion is not possible to PE, PP, PTFE, and silicone oils—these substrates are fundamentally incompatible with silicone. If in doubt, we recommend a preliminary test or consulting SILITECH regarding the specific material pairing.
Prepare the substrate to be clean, grease-free, and dry. Apply the sealant evenly from the cartridge or container—refer to the TDS for skin formation and curing times. Store in the unopened original container at 5 to 30 °C, protected from sunlight. Use opened containers promptly—for Acetic systems, reseal tightly immediately after opening. Consult the current Safety Data Sheet (SDS) before use.
In the comparison table above, you will find related CAF products with adapted properties—different color, different crosslinking system (acetic vs. neutral), or different mechanical properties. If you are unsure about the optimal choice, we would be happy to advise you—contact SILITECH with your requirements (substrate pairing, temperature, corrosion requirements, appearance).
Your question isn't listed here
Our technical team will advise you personally on material selection, processing questions, and individual requirements. Quickly and competently.
Product specifications
| Product information | |
|---|---|
| Container | 100 g or 310 ml |
| brand | CAF |
| Networking type | Single-component (humidity) |
| Number of components | 1K (single-component) |
| consistency | Thixotropic |
| Mixing ratio | Single-component |
| Manufacturer | Elkem Silicones |
| Other features | |
|---|---|
| UV resistance | No |
| Physical properties | |
|---|---|
| Paint has hardened | White |
| Self-leveling | No |
| Electrical properties | |
|---|---|
| Electrical insulation | Yes |
| Product approvals | |
|---|---|
| Food contact | No |
| Suitable for medical use | No |
| Keywords | |
|---|---|
| Keywords | |
| Mechanical properties | |
|---|---|
| Shore hardness A | 25.0 Shore A |
| Modulus at 100% elongation | 0.5 MPa |
| Tensile strength | 1.9 MPa |
| Elongation at break | 400.0 % |
| Tear resistance | 4.0 kN/m |
| processing | |
|---|---|
| Flowability | 2.0 min |
| Skin formation time | 7.0 min |
| Fully cured after 24 hours | 4.6 mm |
| Crosslinking 2 mm layer | 7.0 h |
| Physical & Thermal | |
|---|---|
| Density (23°C) | 1.03 g/cm³ |
| Temperature resistance (duration) | -55 to 200 °C |
| Peak temperature (short-term) | 225 °C |
| thermal conductivity | 0.26 W/(m·K) |
| Electrical characteristics | |
|---|---|
| Dielectric constant ε (1 kHz) | 2.9 |
| Dielectric strength | 19.0 kV/mm |
| Contact resistance | 4e+15 Ω·cm |
| Loss factor tan δ | 0.002 |
| storage | |
|---|---|
| Shelf life in original packaging | 18 months |
| Storage temperature | 2 to 30 °C |
Documents and datasheets
Safety Data Sheets (SDS) and Technical Data Sheets (TDS) are available for download:
- CAF 730 MF - Fiche Technique FR.pdf (145 KB)
- CAF 730 MF - Fiche de Sécurité FR.pdf (466 KB)
- CAF 730 MF - Safety Data Sheet EN.pdf (416 KB)
- CAF 730 MF - Scheda di Sicurezza IT.pdf (458 KB)
- CAF 730 MF - Safety Data Sheet DE.pdf (265 KB)
- CAF 730 MF - Technical Data Sheet EN.pdf (619 KB)
- CAF 730 MF - Technical Data Sheet DE.pdf (50 KB)