Alchemy-Spetec Blog

Sealing Pipe Penetrations

Posted by Anthony Sandone on Jun 19, 2017 3:58:08 PM

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leak-blog (2).pngOver the years, I have been asked countless times for the best way to seal pipe penetrations and other irregular annular spaces. Pipe penetration scenarios often have to do with water supply lines, electrical conduits and gas lines just to name a few. The main concern is creating a durable watertight seal between the outside of the pipe and the structure the pipe is penetrating through.

Use oakum soaked in a resin such as F400, AP Seal 500F1000AP Fill 700 or H100. The soaked oakum can then be packed around the annular space, and forced back into the opening of the cracks with a screwdriver or similar tool. Soaking and packing the oakum this way creates a firm gasket that stops any immediate leaks. The next step is to inject one of these resins behind the gasket using an injection needle (contact us for more information on injection needles).

The combination of the gasket around the edges and more resin deeper in the pipe penetration creates a durable watertight seal.
 

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Topics: All Posts, Seal Leaks