LCA-4LV
1 of 2 products in this brandLCA-4LV is a highly filled gyro grade epoxy adhesive having a low coefficient of thermal expansion, good dimensional stability, and excellent chemical resistance. It is useful in applications requiring bonding or hermetic sealing of metal, ceramic, glass, and other substrates. Compared to Adhesive LCA-4, Adhesive LCA-4L V is less viscous, has a longer working life and generally requires additional cure time to develop similar properties.
RTU Product Type: Epoxy Adhesive
Application Area: Aerospace Applications
Compatible Substrates & Surfaces: Ceramic, Glass, Metal
Chemical Family: Epoxy & Epoxy Derivatives
Features: Chemical Resistant, Dimensional Stability, Long Working Life, Low Coefficient of Thermal Expansion, Low Outgassing
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Type Document Name
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Technical Data SheetLCA-4LV Technical Data Sheet
Enhanced TDS
Identification
- Chemical Family
- GBU
- RTU Product Type
- Categories
Applications
- Application Area
- Compatible Substrates & Surfaces
- Segment
Applications & Uses
- Instructions For Use
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- Stir well the contents of the container each time before removing material. If the contents are hard or lumpy, warm to 200°F and mix thoroughly before removing material.
- Prolonged storage at room temperature may result in the Adhesive LCA-4LV resin crystallizing. Warming to 200°F will melt the resin and restore the adhesive to its original consistency.
- Weigh the ingredients accurately so that each amount specified does not vary more than 5%.
Features
- Ready-to-Use Product Features
Packaging & Availability
- Regional Availability
- Packaging Information
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LCA-4LV is available in quart and four fluid ounce kits, and Adhesive LCA-4LV/BA-9 is available in One-Shot kits
Properties
- Cured Properties
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Value Units Test Method / Conditions Coefficient of Thermal Expansion (between -65°F and 80°F cured 1hr at 140°F + 48 hr at 160°F, test method type I-A) 16 x 10⁻⁶ /°F ASTM D83 Coefficient of Thermal Expansion (between -65°F and 80°F cured at 200°F, 8hr, test method type I-A) 15 x 10⁻⁶ /°F ASTM D83 Coefficient of Thermal Expansion (between -65°F and 80°F, cured at 200°F, 2hr, test method type I-A) 15 x 10⁻⁶ /°F ASTM D83 Coefficient of Thermal Expansion (between 250°F and 300°F, cured 1hr at 140°F + 48 hr at 160°F, test method type I-A) 60 x 10⁻⁶ /°F ASTM D83 Coefficient of Thermal Expansion (between 250°F and 300°F, cured at 200°F, 2hr, test method type I-A) 63 x 10⁻⁶ /°F ASTM D83 Coefficient of Thermal Expansion (between 250°F and 300°F, cured at 200°F, 8hr, test method type I-A) 66 x 10⁻⁶ /°F ASTM D83 Coefficient of Thermal Expansion (between 80°F and 135°F, cured 1hr at 140°F + 48 hr at 160°F, test method type I-A) 21 x 10⁻⁶ /°F ASTM D83 Coefficient of Thermal Expansion (between 80°F and 135°F, cured at 200°F, 2hr, test method type I-A) 22 x 10⁻⁶ /°F ASTM D83 Coefficient of Thermal Expansion (between 80°F and 135°F, cured at 200°F, 8hr, test method type I-A) 20 x 10⁻⁶ /°F ASTM D83 Dielectric Constant (at 200°F, cured at 200°F, 2h, 1 kHz) 5.47 - - Dielectric Constant (at 77°F, cured at 200°F, 2h, 1 kHz) 5.21 - - Dissipation Factor (at 200°F, 2h, 1 kHz) 0.008 - - Dissipation Factor (at 77°F, 2h, 1 kHz) 0.003 - - Flexural Modulus (cured 1hr at 140°F + 48 hr at 160°F) 1.6 x 10⁶ psi ASTM D790 Flexural Modulus (cured at 200°F, 2hr) 1.6 x 10⁶ psi ASTM D790 Flexural Modulus (cured at 200°F, 8hr) 1.6 x 10⁶ psi ASTM D790 Flexural Strength (1h at 140°F + 48h at 160°F) 12000 psi ASTM D790 Flexural Strength (at 200°F, 2h) 12000 psi ASTM D790 Flexural Strength (at 200°F, 8h) 12000 psi ASTM D790 Glass Transition Temperature (1h at 140°F + 48h at 160°F) 178 °F Thermomechanical Analyzer Glass Transition Temperature (1h at 140°F + 48h at 160°F) 199 °F Differential Scanning Calorimetry Glass Transition Temperature (at 200°F, 2h) 175 °F Thermomechanical Analyzer Glass Transition Temperature (at 200°F, 2h) 176 °F Differential Scanning Calorimetry Glass Transition Temperature (at 200°F, 8h) 199 °F Thermomechanical Analyzer Glass Transition Temperature (at 200°F, 8h) 217 °F Differential Scanning Calorimetry Hardness (1h at 140°F + 48h at 160°F) 92 Shore D ASTM D1706 Hardness (at 200°F, 2h) 91 Shore D ASTM D1706 Hardness (at 200°F, 8h) 92 Shore D ASTM D1706 Lap Shear Strength (at -65°F, to aluminum, at 1h at 140°F + 48h at 160°F) 2200 psi ASTM D1002 Lap Shear Strength (at -65°F, to aluminum, cured at 200°F, 2h) 2300 psi ASTM D1002 Lap Shear Strength (at -65°F, to aluminum, cured at 200°F, 8h) 2600 psi ASTM D1002 Lap Shear Strength (at 200°F, to aluminum, cured at 1h at 140°F + 48h at 160°F) 2100 psi ASTM D1002 Lap Shear Strength (at 200°F, to aluminum, cured at 200°F, 2h) 2300 psi ASTM D1002 Lap Shear Strength (at 200°F, to aluminum, cured at 200°F, 8h) 2500 psi ASTM D1002 Lap Shear Strength (at 77°F, to aluminum, cured at 1h at 140°F + 48h at 160°F) 2200 psi ASTM D1002 Lap Shear Strength (at 77°F, to aluminum, cured at 200°F, 2h) 2300 psi ASTM D1002 Lap Shear Strength (at 77°F, to aluminum, cured at 200°F, 8h) 2500 psi ASTM D1002 Permeability (at 21°C, cured at 200°F, 2h, water vapor) 1 x 10⁹ g/cm-sec-atm - Specific Gravity (1h at 140°F + 48h at 160°F, Test method type A) 1.86 - ASTM D792 Specific Gravity (at 200°F, 2h, Test method type A) 1.86 - ASTM D792 Specific Gravity (at 200°F, 8h, Test method type A) 1.86 - ASTM D792 Volume Resistivity (at 200°F, cured at 200°F, 2h) 0.7 x 10¹⁴ Ω-cm - Volume Resistivity (at 77°F, cured at 200°F, 2h) 20 x 10¹⁴ Ω-cm - Weight Change (after 24h immersion plus drying at 120°F cured 1h at 140°F + 48h at 160°F, in Water, Test method type A) 0.002 % ASTM D590 Weight Change (after 24h immersion plus drying at 120°F cured at 200°F, 2h, in Water, Test method type A) 0.01 % ASTM D590 Weight Change (after 24h immersion plus drying at 120°F cured at 200°F, 8h, in Water, Test method type A) 0.005 % ASTM D590 Weight Change (at 120°F after 24h immersion in HCFC 141b, cured 1h at 140°F + 48h at 160°F, in solvent) -0.009 % - Weight Change (at 120°F after 24h immersion in HCFC 141b, cured at 200°F, 2h, in solvent) 0.002 % - Weight Change (at 120°F after 24h immersion in HCFC 141b, cured at 200°F, 8h, in solvent) -0.004 % - Weight Change (at 120°F after 24h immersion in acetone, cured 1h at 140°F + 48h at 160°F, in solvent) 0.001 % - Weight Change (at 120°F after 24h immersion in acetone, cured at 200°F, 2h, in solvent) 0.005 % - Weight Change (at 120°F after 24h immersion in acetone, cured at 200°F, 8h, in solvent) 0.004 % - Weight Change (at 120°F after 24h immersion in chloroform, cured 1h at 140°F + 48h at 160°F, in solvent) 0.138 % - Weight Change (at 120°F after 24h immersion in chloroform, cured at 200°F, 2h, in solvent) 0.23 % - Weight Change (at 120°F after 24h immersion in chloroform, cured at 200°F, 8h, in solvent) 0.001 % - Weight Change (at 120°F after 24h immersion in methanol, cured 1h at 140°F + 48h at 160°F, in solvent) -0.006 % - Weight Change (at 120°F after 24h immersion in methanol, cured at 200°F, 2h, in solvent) 0.007 % - Weight Change (at 120°F after 24h immersion in methanol, cured at 200°F, 8h, in solvent) -0.007 % - Weight Change (at 120°F after 24h immersion in n-Hexane, cured 1h at 140°F + 48h at 160°F, in solvent) 0.002 % - Weight Change (at 120°F after 24h immersion in n-Hexane, cured at 200°F, 2h, in solvent) 0.005 % - Weight Change (at 120°F after 24h immersion in n-Hexane, cured at 200°F, 8h, in solvent) 0.004 % - Weight Change (at 120°F after 24h immersion in toluene, cured 1h at 140°F + 48h at 160°F, in solvent) -0.002 % - Weight Change (at 120°F after 24h immersion in toluene, cured at 200°F, 2h, in solvent) 0.004 % - Weight Change (at 120°F after 24h immersion in toluene, cured at 200°F, 8h, in solvent) -0.003 % - - Recommended Mixing and Handling Parameters
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Value Units Test Method / Conditions Activator Content (per 100 of adhesive) 4.5 pbw - Pot Life (tack-free time) 240 m - Viscosity (at 160°F, mixed adhesive) 100 poise - Viscosity (at room temperature, mixed adhesive) 3000 poise - Work Life (at room temperature) 100 m -
Safety & Health
- Safety Information
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For industrial use only! May cause injury to skin following prolonged or repeated contact. Use with adequate ventilation
Storage & Handling
- Storage Conditions
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The shelf life of these materials are greater than two years when stored in unopened containers at an average temperature below 85°F.
- Shelf Life
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2 years