hmmmm....this is the standard you sited, SAE AMS-DTL-23053/16
Insulation Sleeving, Electrical, Heat Shrinkable, Crosslinked, Elastomeric Polyolefin, Flexible
It is for Polyolefin specifically
When I went to the TE site I found this:
Quote:
DR-25 flexible single wall heat shrink tubing made of crosslinked elastomer material and is available in black color with an operating temperature of -75 – 150 DEGC. These have shrink ratio of of 2:1.
Primary Product Color: Black
Wall Type: Single
Shrink Ratio: 2:1
Primary Product Material: Crosslinked Elastomer
Heat Shrink Tubing Flammability: Flame-Retardant
It just says cross linked elastomer, but the max temp is 150C, which would make it FEP which shrinks in the 150-170C range iirc, meaning the DR-25 doesn't meet the requirements SAE AMS-DTL-23053/16 and can't be used on normal PVC insulated automotive grade wire ....but would be perfect for the aircraft grade tefzel stuff which is quite popular in motorsport use and is what I use. I don't use FEP heatshrink though becaseu the nylon jacket I put on my harnesses melts below the FEP shrink temp.
unless I'm missing something that stuff won't work well for your application either, I think you need the polyolefin stuff