A protector is for a tubular threaded element for drilling, exploitation of hydrocarbon wells, transport of oil and gas, transport or storage of hydrogen, carbon capture or geothermy. The protector includes a main body that includes at least one exterior axial surface extending axially and facing outward in such a manner as to be able in the assembled state to face the interior surface wall of a tubular threaded element. The exterior axial surface of the main body is fitted with at least one seal adapted in the assembled state to block particles of scale.

A sealant material for sealing joints between male and female mating parts comprising: (a) an elongate flexible thread suitable for wrapping around at least one of the parts, and (b) a joint sealing composition comprising an anaerobically curable composition in solid form,
the flexible thread being coated with the anaerobically curable composition. This provides a reactive composition on the thread for sealing joints.

A tubular threaded element for the drilling, the operation of hydrocarbon wells, the transport of oil and gas, the transport or the storage of hydrogen, the carbon capture or the geothermal energy, including a metal body and at least one threaded end including at least one threaded portion, the threaded end including a multilayer coating on at least one portion of the surface of the threaded end wherein the multilayer coating includes a first layer including a solid coating including Zinc-Nickel electrodeposited on the at least one portion of the surface of the threaded end, a second oxalation-type conversion layer above the first layer, a third layer including a polyurethane or epoxy matrix loaded with solid lubricant particles above the second layer.