Dabond 2000 vs A&E Sunstop V92 in a Chainstitch machine

[Dave9111]

 

I have been running Dabond 2000 V92 thread as the top thread in a single needle, 2 thread chainstitch machine.   I'm running V45 for the bottom threads which seems to work well.   This is with the 401 chainstitch, so the bottom threads wrap through the eye of the top thread twice, hence the smaller bottom thread.    I want to stick to a bigger topstitch thread for UV resistance since this is for covers, left outside.  

This has been working ok but the bottom chaining was not entirely consistent.  It was like the bottom tension was varying.  I decided to buy another roll of thread for the top thread, and I found some A&E Sunstop V92 and decided to try it out.  I replaced the Dabond V92 with the A&E Sunstop V92 and my inconsistent chaining issue went away entirely.   I made no other changes.  The A&E thread is much more pliable than the Dabond.   This machine runs without a lot of tension compared to my Lockstitch machine, but I did not expect this.  

Has anyone else seen Dabond cause issues like this?   I think Dabond is just too stiff for use in a chainstitch machine.   Unfortunately information on how to run a two thread chainstitch machine seems sparse on the web.  Google searches oftentimes come up with nothing.  So this machine has been a learning experience!  

Dave