Epoxy Won't Cure? We Tested the Real Causes

Epoxy won't cure? Sticky epoxy resin, soft epoxy resin and bendy epoxy are tested with Craft Resin epoxy in small medicine cups. We changed one thing at a time: ratio, stirring, temperature and heavy colour loads. This is a deliberately broken batch, so the failures are useful without wasting a full pour. The point is not just what went wrong - it is which failure looks like another one, and what you can actually do next time. Which curing problem have you hit: sticky surface, soft bend, bubbles, or a mystery you still have not solved? 00:00 Why resin sometimes stays soft or sticky 01:20 The control test: correct 1:1 resin mix 02:55 Wrong ratios and bad mixing tests 06:15 Cold curing, ink, mica, glitter and paste overload 11:45 Demoulding results: what cured, bent or failed ──────────────────────── 💛 New to Kirnix? ──────────────────────── We’re Kirk & Nikki. We make things with epoxy resin, UV resin and eco resin (Aquacast), based in the UK. New videos every Tuesday and Saturday at 10:00 UK. ──────────────────────── 💬 Join the Community ──────────────────────── If you like seeing what other makers are doing (and occasionally debating glitter density), come and join us here:   / kirnix   ──────────────────────── 💜 Become Part of the Glitterati ──────────────────────── Early access, member updates, and the occasional extra behind-the-scenes:    / @kirnixcreations   ──────────────────────── 💛 Want to Support the Channel? ──────────────────────── https://buymeacoffee.com/kirnix — or you’ll find our wishlist here: https://amzn.eu/1cA9Fvr ──────────────────────── 🛠 Tools & Discounts We Actually Use ──────────────────────── Some of the links below are affiliate links. If you choose to use them, we may earn a small commission at no extra cost to you. We only share products we use in our own studio. We are brand ambassadors for Craft Resin, Elichem, Jacquard, and Just Resin. Our regularly used supplies: https://kirnixcreations.co.uk/discoun... ──────────────────────── 🧪 CASTING MATERIALS ──────────────────────── Eli-Chem Resins | 15% Off | Code: KIRNIX15 https://www.elichem.co.uk Craft Resin | 10% Off | Link Applies Discount • US Store https://www.craft-resin.com/discount/... • EU Store https://www.craft-resin.eu/discount/K... • UK Store https://craft-resin.co.uk/discount/KI... ──────────────────────── 🛠 RESINERS GEAR ──────────────────────── Resiners® G3 2-in-1 Curing Machine | 15% Off | GFXLYU79 US: http://amzn.to/42QxlUj UK: http://amzn.to/4nzjx9i Resiners Purair Lite Resin Air Purifier | 15% Off Air Purifier Lite US: https://amzn.to/3PsgGTH Air Purifier Lite UK: https://amzn.to/43m7tQ0 Resiners Purair Air Purifier | 15% Off US: https://amzn.to/4jraPHn UK: https://amzn.to/3XXiFjZ Resiners Dual-Head Mixer | 15% Off | Code: QAI5XG68 US: https://amzn.to/4kCygOX UK: https://amzn.to/4jSvDrf Resiners Dual-Sided UV Lamp | 15% Off | Code: KYLIHXWK US: https://amzn.to/48vxoYW UK: https://amzn.to/47YmnPD Resiners Cordless Rotary Tool | 20% Off | Code: KIRNIX20 US: https://amzn.to/46N2lri UK: https://amzn.to/4m6esEE Resiners Dual-Zone Silicone Mat | 20% Off | Code: KIRNIX20 US: https://amzn.to/4oop9np UK: https://amzn.to/4fzdHl2 Resiners Website | 15% Off | Code: Kirnixco https://resiners.com/discount/kirnixc... ──────────────────────── 🎨 COLOURS ──────────────────────── Just Resin | 10% Off | Code: KIRNIX https://justresin.shop/KIRNIX Jacquard | 20% Off | Code: KIRNIX https://store.jacquardproducts.com/co... Homeware Design Co | 15% Off | Code: KIRNIX15 https://homewaredesign.co/discount/KI... Octopus Fluids | 10% Off | Code: KIRNIX https://www.octopus-fluids.de/en/ ──────────────────────── 🧱 CLAY SUPPLIES ──────────────────────── Craft Cellar | Recommended Supplier https://craftcellar.co.uk ──────────────────────── 🧩 MOULDS ──────────────────────── IntoResin | 20% Off | Code: Kirnix20 https://www.intoresin.com/discount/ki... ──────────────────────── 🌐 Website Hosting ──────────────────────── Hostinger | 20% Off | Code: kirnix https://hostinger.co.uk?REFERRALCODE=... ──────────────────────── ⚠️ Safety ──────────────────────── Always read the manufacturer’s Safety Data Sheet (SDS) for any material or tool you bring into your space. Every brand has its own chemistry and quirks; know your materials before you dive in. We share what works for us in our studio — your setup and environment will be different to ours. ────────────────────────