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Active air leak demonstration using Efusing Self-Fusing Silicone Sealing Tape

Active air leak demonstration using Efusing Self-Fusing Silicone Sealing Tape

Thank you for joining us for another USI Tech Talk, and today we will be doing a Live E-Fusing Demonstration on an active AIR Leak. Presented by Nick Cliff and Bobby Clemens, and both are experts in composite repairs.

Thanks for joining us on another USI Tech Talk. Today we will be working with a live air leak system. Many of you have pneumatic systems throughout your facilities, and this will be a great practical application to get you through that shift, so you can put this on your schedule to get repaired over the weekend.

We are going to go over some of the products that we are going to be using, and I will talk about some of the technical data.

  1. First we will be starting with our Universal Cleaner. It comes in a 1-gallon or a 1-pint size. You are going to use that to do your surface prep, and clean the pipe as best that you can to get the oil and grease off of the surface.
  2. 900 Moldable Silicone Putty – This is great you make it to fit around flanges, t-joints or anywhere that there is a small hairline crack, this stuff works really well
  3. Efusing 140 Self-Fusing Silicone Sealing Tape This one is 1″ wide strip with 40 mil thick. It offers 16,000 volts of dielectric strength per layer, and you will see that through out the entire product line we are showcasing today.
  4. Efusing 220 Self-Fusing Silicone Sealing Tape – This is 2″ wide strip by 20 mil thick. This is great for electric motor leaks, pigtail connections, anywhere you will need rigorous protection.
  5. Efusing 330 Self-Fusing Silicone Sealing Tape – This is 3″ wide strips by 30 mil thick, for those larger applications on pipe that your run into that you are going to be needing that tight seal.

What’s different about these products and what makes them unique is their temperature range and effective use. It works into temperature use all the way down to -65°F all the way up to 450°F.

DEMONSTRATION:
This line is live now, and is hooked up to an air compressor, and it is running at 60 PSI for safety sake inside the shop. Bobby is going to cut this and show that there is a live leak going.

STEPS:

  1. Using Universal Cleaner. As you can see, there is no sticky residue that has been left by this tape, as you can see. Rapid Dry.
  2. Break off a piece of the 900 Moldable Silicone Putty, and stretch it out a little bit. The idea is to mold this putting around the entire surface of the area that needs to be repaired, focusing on the damaged area.
  3. Get your strips ready for your application. We will be using the Efusing 140 Self-Fusing Silicone Sealing Tape. You’re going to cut an 18″ long strip. It comes with a plastic backing. Remove the plastic backing. For the first revolution, you going to apply minimum tension on the actual wrap and once you get through, you are going to pull it tighter, about 300%. You should see the red line in the middle start to break apart, and have some gaps, because you are putting a lot of tension while you wrap. You are using the full 18″ over the leak. Not going up and down the pipe, that will come next. The last inch of the wrap you will lessen the tension.
  4. You are going to be using your second 18″ long strip of 140 Efusing tape. You are going to start a 1/2″ outside of the damaged area, and the red line will help you when you are working with the product. Do a 100% overlap on the first wrap, and again very light on your tension for the first section and then expand your tension as you wrap around the pipe. You will be doing a 50% overlap on the 2nd wrap around the pipe. You are creating the fusion of each layer as you keep wrapping. The last inch, once again you will lesson the tension.
  5. If when you turn on the pressure and you are still hearing/feeling the leak, then you need apply a third 18″ or fourth 18″ long strip to ensure seal protection. If you don’t have the putty handy, you can still seal with the 140 Efusing tape, but you will just need a few more wraps.


QUESTION:
What is the max PSI to be able to use this product?
Max 100 PSI and safest at 99 PSI and under. The tech data sheet will show more info, but you will hear it if it fails.

If your first couple of wraps don’t hold the repair, what are your next steps.
You would simply take a 3rd-strip with 100% minimum tension, breaking apart that red line with tension and then continue to wrap till you reach the last 1″. You have 2 systems at work, the putty and the tape. It is all one solid layer. The good thing about this, is that if you

What other applications can these products be used for?
Water leaks, fuel line, air leaks, electric motor leaks (2 connecting points, replacing electrical tape), are just a few.

 

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