LOCTITE thread sealants, available in liquid form or as sealing cord, prevent leakage of gases and liquids. Designed for low and high pressure applications, they fill the space between threaded parts and provide an instant, low pressure seal. When fully cured, they seal to the burst strength of most pipe systems.

LOCTITE sealants are much superior to traditional sealant types

Solvent-based sealing compounds: Shrink during cure as solvents evaporate. Fittings must be re-torqued to minimise voids. They lock the assembly by a combination of friction and deformation.

PTFE tape: Lubricates, allowing fittings to loosen under dynamic loads and resulting in loss of clamping force and leakage. Dynamic loads may accelerate creep, causing leakage over time. The lubricating effect of PTFE frequently results in over-tightening of fasteners, adding stress or causing breakage of parts. Application requires good professional skills to avoid stressing fittings or castings.

Hemp & Paste: Slow to apply and require a lot of expertise, messy to use, and interfere with the torque needed to obtain the correct pre-stress. Frequently require re-work to achieve a 100% seal of the assembly. 

Further downloads, documentation available on request
Source: Henkel Ltd.
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