chriscraft Report post Posted March 14, 2016 I would like to start making these leather Shield fronts and wondering if you need to use Kevlar thread? The issued shield on my Fire Dept. helmet uses a thread that burns when I burned it with a pocket lighter. Wondering if its a safely thing to use Kevlar thread or will standard bonded nylon thread work? On my first sample shield pictured I made using 346 bonded nylon thread. Quote Share this post Link to post Share on other sites