LOCTITE® 603 is designed for the bonding of cylindrical fitting parts, particularly where consistently clean surfaces cannot be assured. The product cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. Typical applications include retaining roller bearings or oil impregnated bushings into housings.
FEATURES AND BENEFITS
- Prevents loosening: It fills all gaps between the cylindrical components and cures into a hard thermoset plastic. This unitizes the assembly and prevents loosening and leakage from shock and vibration.
- Ideal for close fitting parts with light contamination and sintered bearings.
- High oil tolerance.
APPLICATION
Retaining
|
Technology |
Acrylic |
|
Chemical Type |
Urethane methacrylate |
|
Appearance (uncured) |
Green liquidLMS |
|
Fluorescence |
Positive under UV lightLMS |
|
Components |
One component – requires no mixing |
|
Viscosity |
Low |
|
Cure |
Anaerobic |
|
Secondary Cure |
Activator |
|
Application |
Retaining |
|
Strength |
High |
TYPICAL PROPERTIES OF UNCURED MATERIAL
|
Specific Gravity @ 25 °C |
1.1 |
|
Flash Point – See SDS |
|
|
Viscosity, Brookfield – RVT, 25 °C, mPa·s (cP) |
Spindle 1, speed 20 rpm 100 to 150LMS |
|
Viscosity, EN 12092 – MV, 25 °C, after 180 s, mPa·s (cP) |
Shear rate 277 s -1 90 to 180 |
TYPICAL PROPERTIES OF CURED MATERIAL
|
Physical Properties: |
|
|
Coefficient of Thermal Expansion, ISO 11359-2,K^-1 |
80×10^-6 |
|
Coefficient of Thermal Conductivity, ISO 8302, W/(m·K) |
0.1 |
|
Specific Heat, kJ/(kg·K) |
0.3 |
|
Adhesive Properties |
|
|
After 24 hours @ 22 °C Compressive Shear Strength, ISO 10123 Steel pins and collars |
N/mm² ≥22.5LMS (psi) (3,260) |
|
After 30 minutes @ 22 °C Compressive Shear Strength, ISO 10123 Steel pins and collars |
N/mm² ≥13.5LMS (psi) (1,960) |
Chemical/Solvent Resistance
|
|
|
% of initial strength |
||
|
Environment |
°C |
100 h |
500 h |
1000 h |
|
Motor oil (MIL-L-46152) |
125 |
100 |
100 |
100 |
|
Unleaded Petrol |
22 |
100 |
90 |
85 |
|
Brake fluid |
22 |
100 |
90 |
80 |
|
Water/glycol 50/50 |
87 |
100 |
90 |
80 |
|
Ethanol |
22 |
100 |
100 |
75 |
|
Acetone |
22 |
90 |
90 |
90 |
