Radioactive Symbol Round Embroidered Patch Iron-On Sew-On Nuclear Warning Sign Science Geek Badge

Radioactive Symbol Round Embroidered Patch

The iconic international nuclear radiation warning symbol in a bold yellow and black round embroidered patch. This premium patch features the classic radioactive trefoil design – a deep black circle background with the bold vivid yellow radioactive trefoil symbol centred – a small vivid yellow open ring circle in the very centre of the patch, and three bold vivid yellow fan-blade shaped radiation lobe sections radiating outward from the centre ring at equal 120-degree intervals filling the outer area of the circle, each lobe with a wide curved outer edge and two straight inner edges tapering inward toward the centre ring, with three equal deep black gap sections between each lobe following the same 120-degree spacing, all with a clean wide vivid yellow merrowed border following the round shape. Bold, iconic, and unmistakably radioactive – a must-have for science fans, nuclear culture lovers, and warning symbol patch collectors worldwide.

• Size: 75mm (round)
• Patch color: Yellow & black
• Design: Classic radioactive trefoil – bold vivid yellow open centre ring with three bold vivid yellow fan-blade radiation lobe sections at equal 120-degree intervals with deep black gap sections between each lobe on deep black circle background with wide vivid yellow merrowed border
• Premium high-density embroidery – clean edges, durable finish
• Iron-on or sew-on backing
• Perfect for jackets, vests, caps & bags
• Perfect gift for science fans, nuclear culture lovers & warning symbol patch collectors

How to Apply

1. Place the patch on the desired fabric
2. Cover with a thin cloth or baking paper
3. Press with a hot iron for 30–45 seconds with firm pressure
4. Let cool and press edges firmly for a secure bond