Gluing a Patch Without a Needle or Iron

https://andresarqn496.rivertonbrief.com/posts/custom-patches-for-fire-departments-designing-a-shoulder-patch-that-lasts

Not everyone owns a sewing kit, and not every fabric can take the heat of an iron. Leather jackets, nylon backpacks, some synthetics and delicate items all make traditional attachment tricky. Fabric glue for patches fills that gap