638 is designed for the bonding of cylindrical fitting parts, particularly where bond gaps can approach 0.25 mm and where maximum strength at room temperature is required.
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 locking bushings and sleeves into housings and on shafts.
Best resistance to dynamic, axial and radial loads
Ideal for shafts, gears, pulleys and similar cylindrical parts
Diametrical clearance: Up to 0.25mm
Tensile shear strength: >25 N/mm²
Service temperature range: -55°C to +150°C
Fixture time on steel: 4 min.