I don't have a place to send you but hope to learn from this thread for future.
I DO agree with the above that TSC/other sources of new no-flat tires as The solution ... and do practice this when possible ....
but in this small town, didn't find any for the new JohnDeere trac.mower and those found online were terribly expensive.
So procrastination has set in since - tires not leaking YET -
not to mention lazy me taking off, putting on and hoping it all fits
My mechanic DIY son had good luck with TSC Slime (2-in-1 ??) Tire and Tube Sealant gallon
with variations sold most everywhere as a DIY that he said was EZ
More lazy than he, I had little success with my 16yo Craftsman tractor mower ooold tires whose mesquite/other punctures defied all other fixOflat brand "solutions" within a week or so.
Stumbled across a higher dollar but big time saver
Airman Lightweight Air Compressor Tire Repair Kit that did the trick, first time and forever ....
but now I find other cheaper, simpler twin solutions with good brand names as alternates
Gotta draw since me got no grammar MasterArch '76