LOCTITE SI 5604
Harmonization Code : 3208.20.90 | Paints and varnishes that are dispersed or dissolved in a non aqueous medium
Main features
- 4:1 Volume Mix Ratio
- 5 to 10 Minute Fixture Time
- 205% Cured Elongation
Product Description
LOCTITE SI 5604 is a two-part neutral alkoxy silicone adhesive/sealant that mixes Part A and Part B at 4:1 by volume. At 25 deg C, fixture time is 5 to 10 minutes on steel and Alclad using the stated ISO 4587 threshold. The product is used for industrial bonding and sealing applications. After seven days at 22 deg C and 50% RH, typical cured properties include Shore A hardness 42, 205% elongation, tensile strength of 2.1 N/mm^2, volume resistivity of 5.1x10^14 ohm cm, and dielectric breakdown strength of 20 kV/mm.
Key features
- Two-Part Mixing: Part A and Part B are mixed at 4:1 by volume.
- Assembly Handling: Reaches fixture strength in 5 to 10 minutes on steel and Alclad at 25 deg C under the stated ISO 4587 threshold.
- Cured Flexibility: Typical elongation is 205% by ISO 37 after seven days at 22 deg C and 50% RH.
Applications
Industrial bonding and sealing applications.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Mechanical Properties
Thermal Properties
Electrical Properties
Other Properties
Additional Information
As-supplied / before-processing properties
Component values and mix ratio are retained separately for the two-part system.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Mix ratio | 4:1 | by volume | Part A : Part B |
| Part A specific gravity | 1.2 to 1.4 | - | 25 deg C |
| Part A viscosity | 40,000 to 90,000 | mPa s | Cone and plate; 25 deg C; CP20-2; 20 s^-1 |
| Part B specific gravity | 1.6 to 1.8 | - | 25 deg C |
| Part B viscosity | 20,000 to 70,000 | mPa s | Cone and plate; 25 deg C; CP20-2; 20 s^-1 |
After-processing / final-state properties
Typical cured-material values under the documented seven-day cure and test conditions.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shore hardness | 42 | Shore A | ISO 868; after 7 days at 22 deg C / 50% RH |
| Elongation | 205 | % | ISO 37; same seven-day cure |
| Tensile strength | 2.1 | N/mm^2 | ISO 37; same seven-day cure |
| Volume resistivity | 5.1x10^14 | ohm cm | IEC 60093; cured material |
| Dielectric breakdown strength | 20 | kV/mm | IEC 60243-1; cured material |
