Gluing Tubing Insulation

I see a lot of techs and installers use tape over foam tubing insulation joints (Rubbatex, Armaflex, etc.) rather than using the glue that is designed for it.

Some of them use tape because they don't know the glue exists; some use tape because it's what they happen to have on the truck, and others don't use the glue because they attempted to use it and couldn't get it to work right.

There is a trick to using contact adhesives like tubing insulation glue and spray glue. You need to allow it to dry a bit and “tack up” before pressing it together.

Here is the step-by-step guide:

  1. Make cuts clean and even. 
  2. Apply glue on BOTH sides of the cut. 
  3. Hold the sides apart and allow them to dry and get tacky.
  4. Press together evenly and hold.
  5. Celebrate your new skill by attempting to pull it apart and being unable! (This part is based on a true story; no Armaflex was harmed in the making of this photo.)

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Related Tech Tips

Introduction to SORIT Valves
Photo Courtesy of Parker/Sporlan There are many brands and styles of evaporator pressure regulating valves (EPR), but none as common as the Parker/Sporlan SORIT and ORIT valves. The diagram above clearly shows some of the common applications. An EPR or “hold back” valve maintains a set suction line pressure and, therefore, coil temperature. That is […]
Read more
Capacitor Testing and Replacement Procedure
  ❶ Understand What a Run Capacitor Does The run capacitor provides continuous phase-shifted current to the motor start winding, allowing the motor to run: With the design efficiency In the right direction With the appropriate torque With near “unity” power factor (power factor near 1.0) If the run capacitor is failed, the motor often […]
Read more
The MOST IMPORTANT Skill a Tech Can Have
I knew a tech when I was just starting who was hands down, no questions asked, the best technician at the company I worked. EVERYONE, we are talking over 60 techs… we all knew it. His name was Mike Gilford. Being the little brown-nosing ladder climber I was, I made a complete study of Mike […]
Read more
loading

To continue you need to agree to our terms.

The HVAC School site, podcast and daily tech tips
Made possible by Generous support from