How to Cut, Sand, and Edge Glass Mirror Without Flaking

Are you having trouble with silver flaking, chipping, or getting black edges when cutting mirror for your stained glass and glass box projects? In this quick studio tutorial, we break down the exact technique to get clean, professional mirror edges every single time. Learn why scoring mirror glass disrupts the backing layer and how a simple swipe with 220 grit sandpaper knocks back the vulnerable silvering before sealing. Stop ruining your mirror pieces and protect both your cut edges and factory edges for long-lasting glass work! ⏱️ Timestamps: 0:00 – Intro: The common problem with cutting mirror 0:45 – Recommended sandpaper grit (220 grit) 1:05 – How mirror is made & what happens when you score it 1:45 – Why raw scored edges flake easily 2:15 – Step-by-step: Sanding back the silver edge 3:05 – Flake test: Raw edge vs. sanded edge 3:30 – Preventing the dreaded "black edge" & final sealing tips 🛠️ Tools & Materials Mentioned: Standard mirror / window glass Glass cutter & scoring fluid 220-grit sandpaper / sanding disc Edge sealant / protective coating 💬 Have questions about working with mirror or building glass boxes? Drop your questions in the comments below! 🔔 Subscribe to ARTyRV GLASS STUDIO for more glass cutting tips, studio tutorials, and stained glass techniques! #StainedGlass #GlassArt #GlassCutting #MirrorCutting #GlassStudio #ARTyRVGlassStudio