Take a new razor blade. Hold it at a 45-degree angle. Scrape off the hardened resin overfill. If you did it right, you will feel a slight bump where the crack was. If you did it wrong, you will see a milky white line that looks like a dried tear. The Philosophical Aftermath Here is what they don't tell you: The crack is still there.
Fill your syringe with resin. Touch the needle to the top of the crack. Do not press the plunger hard. You want capillary action to do the work. The resin should crawl down the fissure like a spider. how to fix a cracked house window
Spray the alcohol. Wipe the glass. Now do it again. Any dust in that crack will act like glitter in a resin river—permanent and infuriating. Use a razor blade to scrape the surface around the crack. You want surgical levels of clean. Take a new razor blade