gas pipe encapsulation Joint leakage is one of the most prevalent dangers to cast iron pipes.

Over the course of time, the packing material used to seal joints in the pipeline becomes dried out and as a result this causes the joint to fail.

Therefore, gas pipe encapsulation is the best method for resolving this issue.


Gasline Service encapsulation works from the simple principle that gas cannot flow from an area of low pressure to an area of high pressure.

After the mold is in place, it is injected with a synthetic rubber that acts as a sealant. It is then pressurized to stop the leak. This practice is most effective in low and medium pressure lines.

Gas pipe encapsulation is a trusted process that offers a quick solution to your leak and can be counted on to hold for the entire life of your pipeline. 

We have the knowledge and expertise you need to get the job done right. Gasline Service provides two basic types of molds designed to handle the demands of each individual situation:

  •  bag molds
  •  cast molds.

Pipe specifications make each mold better suited for certain leak situations.

Bag Molds

Bag Molds are available for pipe diameters of 2 inch. to 36 inch. pipe. This type of epoxy mold technology can be tested for up to 25 lbs of pressure.

Cast Molds

Cast Molds are available for pipe diameters from 2 inches. to 20 inches. standard wall pipe.

We also offers Cast Molds for 10 inch heavy wall pipe as well. We go well beyond the industry standard, testing each mold at 600 psi.

Our company understands that every situation is unique. That’s why we manufacture custom encapsulation split sleeves tailored specifically to handle any type of joint or fitting.

We can produce your very own custom encapsulation sleeve with only one week of lead time required.