STOPAQ® Casing Filler is the most effective solution for preventing corrosion of steel pipelines in steel casings. Water and oxygen that are normally expected to be present in a non-filled casing pipe will cause corrosion of the operational steel pipeline and will cause internal corrosion of the casing pipe. By filling the annulus between the casing pipe and the operational pipe with STOPAQ® Casing Filler, water and oxygen will be displaced, thereby ruling out corrosion.

STOPAQ® Casing Filler is delivered to the casing job site by truck or container in a heated tank and pumped down the casing vent as a hot liquid. As it cools down, it firms up to a pasty consistency.

The product does not cure or become brittle, it stays flexible forever and maintains its optimum sealing properties. The material has high specific electrical insulation resistance which prevents passing of electrical currents, therefore STOPAQ® Casing Filler will also protect from stray CP currents with potential to cause internal corrosion of the casing pipe.

Superior end-sealing solutions are applied in combination with STOPAQ® Casing Filler. This will prevent the ingress of water, oxygen and soil from the casing pipe ends. The solution is by far superior to other casing filling solutions on the market. 

It combines excellent corrosion preventing properties and visco-elastic behaviour of pure polyisobutene (PIB) STOPAQ® material.

Features & Benefits of the STOPAQ® Casing Filler solution:

• Turnkey installation,
• High specific electrical insulation resistance,
• No interference to Cathodic Protection systems,
• Easy installation,
• Does not cure or harden, and maintain this characteristic throughout the lifetime of the asset,
• Remains flexible for its lifetime which can withstand temperature cycles, expansion and contraction of objects and other minor movements,
• Maintenance-free system,
• Prevents water ingress and displaces water,
• NO environmental impact,