DOWSIL Q4-2817 FLUOROSILICONE SEALANT
Harmonization Code : 3910.00.00.90 | Silicones in Primary Forms; Others
Main features
- 55 to 260 deg C Service Range
- Aviation-Fuel, Fuel, and Solvent Resistance
- Aerospace Sealing Application
Product Description
DOWSIL™ Q4-2817 Fluorosilicone Sealant is a one-part, ready-to-use, high-strength solventless fluorosilicone elastomer paste that cures at room temperature to form a tough, rubbery solid. Developed for equipment exposed to solvents, oil, and fuels, this sealant protects surfaces from erosion and corrosion while maintaining flexibility across a broad temperature range of -55°C to +260°C. It is highly suitable for evaluation in aerospace applications, including the critical sealing of aircraft fuel tanks.
Key features
- Fluid resistance: Retains its physical properties when exposed to aviation fuels, oils, and solvents.
- Environmental stability: Offers excellent resistance to weathering, moisture, ozone, and extreme temperatures from -55°C to +260°C.
- Easy application: Features a one-part, room-temperature curing system that adheres well to most materials.
Applications / Suitable for
- Sealing aircraft fuel tanks
- Bonding or sealing components exposed to moisture, vibration, shock, fuel, and solvents
- Protecting surfaces exposed to fuel from erosion and corrosion
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Mechanical Properties
Physical Properties
Additional Information
As-supplied / before-processing properties
Typical properties; these values are not intended for use in preparing specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Color | Red | - | As supplied, at 25°C and 50% relative humidity |
| Relative Density | 1.8 | - | at 25°C (CTM 0022 / ASTM D792) |
| Skin-over Time | 11 | minutes | As supplied, at 25°C and 50% relative humidity (CTM 0098) |
| Extrusion Rate | 120 | g/minute | 3 mm orifice, 0.6 MPa air (CTM 0364) |
After-processing / final-state properties
Typical properties; these values are not intended for use in preparing specifications[cite: 3].
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Durometer Hardness | 43 | Shore A | As cured after 14 days at 25°C and 50% RH (CTM 0099 / ASTM D2240) |
| Tensile Strength | 4.5 | MPa | As cured after 14 days at 25°C and 50% RH (CTM 0137A / ASTM D412) |
| Elongation at Break | 375 | % | As cured after 14 days at 25°C and 50% RH (CTM 0137A / ASTM D412)[ |
| Tear Strength | 15 | kN/m | Die B, as cured after 14 days at 25°C and 50% RH (CTM 0159A / ASTM D624) |
| Peel Strength | 10.5 | kN/m | As cured after 14 days at 25°C and 50% RH (CTM 0293) |
