Yes a Bic lighter and the same problem with the Iodine check your PSK’s And FAK’s regularly! Most likely moisture trapped in tin when you sealed it up corroded it... I keep a Ferro Rod that has been sealed with clear Nail polish {you can use varnish or polyurethane} just as long as it is transparent so you can see any change’s to the Rod
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.