Retaining Compound - high strength. Ideal for bearings. For use on close-fitting cylindrical parts. High oil tolerance.LOCTITE® 603 is a high-strength retaining compound. Designed for the bonding of cylindrical fitting parts, especially for sintered bearings and also 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 due to shock and vibration. It has a high oil tolerance.High-strength retaining compoundEspecially suitable for sintered bearingsHigh oil tolerance
LOCTITE® 638 is a high strength, fast curing, general purpose retaining compound.LOCTITE® 638 is designed for the bonding of cylindrical fitting parts, particularly with narrow bond gaps approaching 0.25 mm. The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration. It not only works on active metals but also on passive substrates, exhibiting robust cure performance. The product offers high-temperature performance and good oil tolerance, and tolerates minor surface contaminants.Tolerates minor contaminants, including industrial oilsHigh strength on all metals, including passive substrates (e.g. stainless steel)High temperature resistanceIdeal for shafts, gears, pulleys and similar cylindrical partsDVGW Approval (EN 751-1): NG-5146AR0619P1 NSF Reg. No.: 123010WRAS Approval (BS 6920): 0511518
Retaining Compound - medium strength. If disassembly is required. Ideal for parts that need subsequent dismantling.LOCTITE® 641 is designed for the bonding of cylindrical fitting parts, particularly where disassembly is required for servicing operations. The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration. Ideal for parts that need subsequent dismantling, i.e. retention of bearings on shafts and in housings.Ideal for parts that need subsequent dismantling, i.e. retention of bearings on shafts and in housings
LOCTITE® 648 is a low viscosity, high strength retaining compound with high temperature resistance. Ideal for retention of parts with a clearance or interference fit.LOCTITE® 648 is designed for the bonding of cylindrical fitting parts. The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration. It exhibits a robust curing performance. The product also works on passive substrates and offers high-temperature performance and good oil tolerance.High temperature resistanceProven to be tolerant of minor contamination due to industrial oilsIdeal for retention of parts with a clearance or interference fitHigh strength on all metals, including passive substrates (e.g. stainless steel)DVGW Approval (EN 751-1): NG 5146C00236P1 NSF Reg. No.: 148350WRAS Approval (BS 6920): 0808532
