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Loctite 638 Pipe Sealant is a high strength anaerobic adhesive designed for sealing parts that will remain fixed and are not required to be dismantled for maintenance, for example, tank fill points, shafts and gears. This thread sealant provides extremely robust performance on all metals even in demanding conditions, and where bond gaps may approach 0.25mm.
Loctite 638 pipe thread sealant can be used alongside the Loctite Sealant Activator to speed up the curing time without having the hold the parts in place. As well as high-temperature resistance, this thread sealer is resistant against industrial oil contaminants.
Please note curing rate and strength depends on the assembly clearance, material, surfaces and temperature.
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