I recently had a new A/C compressor/clutch installed on my 8.1L gas, '02, W-22 chassis MountainAire. The clutch bearing was howling. A new expansion Valve also had to be installed.
When I got it home, I noticed the original, black sticky tape insulation was messed up on the new expansion valve. It is a "MUST" to have this valve insulated properly. We then left on a 5 month trip. I went on a fruitless search for this tape to local auto parts stores-- forget it! Half of them didn't even know what I was talking about. Two places told me to go to Lowes or Home Depot.
I got on the internet and located the stuff, and ordered it from these folks- Great service
! It's called "Prestite Tape".
I now have enough to redo half the RV park, plus the Russian Army.
Here are the pictures of this little job.
This is what I found when I got the rig home
Here is the new "Expansion Valve" after I cleaned all the "gook" off
Here's the roll of the "Prestite Tape". It's 2" wide.
Use a pair of sissors and trim to fit.
Press in place- Overlap where necessary. The material is easy to use. It kinda reminds me of scotch tape- It will permanently stick to anything it touches- Be careful!
Cheers and good luck if you need to do this,