No you can not fix a flat on a lawn mower tire, fix a flat meant to be a temporary fix for a flat tire.
This thing is specially designed to be used in auto highway tires for vehicles such as Trucks, SUVs, or Sedans.
Fixing a flat should not be used in tires on lawn mower tires; it can be commercial or other and also for tractors.

Co-Founder Cord To Cordless
Adan grew up in farmland and learned many things at an earlier age and works in more than 6+ places with different works to gain experience in multiple fields. Currently doing shop projects.
Adan loves to share experiences to build more creativity in your mind.