Check out this video to see how much resin you'll need to execute a windshield repair. Hint: Seven drops.
In this video, we demonstrate how much resin is needed to repair a rock chip in a windshield using Delta Kits resin (part number: 30000 (144-8) MagniBond) from a 15 ML bottle. You'll see that the eye-dropper will contain 7 drops of resin.
Once there are 7 drops of resin in the eye-dropper, we completely insert the eye-dropper into the injector barrel and squeeze the eye-dropper to release the resin.