Rema's results are impressive a knockout over Bell n as a unit glue in patch consistent in glue on stay doahn leak
There are sidewall patches or were.
The NAPA 2 can wudbe a stronger cement but for thicker patches. Acetone and ? content higher for production in a 'shop' setting. Cut's thru dirt.
Vinyl works as vinyl like rubber in DS's post: stricktly requires a vinyl cement ...H66..see NRS.
When I looked a super cement, was involved with patching Spec self sealing tube at $$, went to view n not buy aerospace grade in Henkel
https://goo.gl/DvhszR
Look for yourself.
Take a look at 3M. 3M does not have
a cement for rejoining boot soles..I asked.
Begged