A damp proof course article (20) for forming a damp proof course in a substrate (10) is disclosed.

The damp proof course article comprises an absorbent member (22) and a damp proof course material absorbed into the absorbent member.

The non-textured portion acts as a sealing dam.

The damp proof course material comprises an active agent, wherein the active agent comprises an alkoxysilane.

A thin layer of polymeric film (30) acts as an air impermeable barrier.

A hydrogen generator (18) comprising a reaction chamber (20), a spool (16), and a fuel source (10) wrapped around the spool (16), the fuel source (10) comprising a chemical hydride core encased in an elongate flexible moisture barrier.

The primary insulating barrier (14) is held against the secondary watertight barrier (13) by L profile strips (12 a) retained by a groove (9) on the caissons (4) of the secondary insulating barrier.

The gripper seal is a hydraulically energized rotary seal that forms the secondary sealing barrier on the drill pipe.

The closure (10) includes a retainer (20) received with a sealing barrier (100) formed from a polymeric material.

The sealing strips (8) include blades (9) forming a dual sealing shield in the free spaces between the front part (14) of the conveyor belt (13) and the convex part of the opposite clip.

In use, the sleeve surrounds the conduit, and the sheet is sealed on to a damp course membrane underlying the slab.

Pharmaceutical containers containing at least one shaped component serving as a sealing barrier such as closure, stopper or plunger, for the contents of the container are disclosed.

A vessel wall comprises a sealing barrier (6) and a support foot (10) for an item of equipment immersed in the sealed vessel.

Two adjacent strakes (13) of the secondary watertight barrier are welded to said strip.

The primary insulating barrier is held against the strip (12 a) by means of welded angle irons.