How do you seal labels on glass bottles?

Answered by Marvin Richey

When it comes to sealing labels on glass bottles, there are several methods you can use to ensure they are protected from moisture and remain intact. One effective way is to spray a waterproof coating over the surface of your printed labels. This can be done using clear acrylic or polyurethane coating or lacquer sealers. The top coating acts as a barrier against moisture, preventing it from seeping into the labels and causing damage.

To begin, make sure your labels are securely adhered to the glass bottles. Smooth out any air bubbles or wrinkles to ensure a clean surface. Once your labels are in place, it's time to apply the waterproof coating. Here's how you can do it:

1. Choose the right spray: Look for a clear acrylic or polyurethane coating that is specifically designed for use on surfaces like paper or labels. These coatings are typically available in spray form, which makes application easier and more even.

2. Prepare the area: Find a well-ventilated space to work in, preferably outdoors or in a well-ventilated room. Lay down some protective sheets or newspapers to avoid any overspray or drips on your work surface.

3. Test on a sample: Before applying the coating to all your labels, it's a good idea to test it on a small sample first. This will allow you to see how the coating reacts with your labels and ensure that it doesn't cause any unwanted discoloration or smudging.

4. Apply the coating: Hold the spray can about 6-8 inches away from the bottle and label, and apply a thin, even layer of the coating. Start at the top of the bottle and work your way down, moving the can in a sweeping motion. Be sure to cover the entire label surface, including the edges. Avoid applying too much coating at once to prevent drips or pooling.

5. Allow drying time: After applying the coating, allow it to dry completely before handling the bottles. The drying time will vary depending on the specific product you're using, so be sure to follow the instructions provided by the manufacturer. It's important to give the coating enough time to fully cure and create a strong protective barrier.

6. Repeat if necessary: Depending on the level of waterproofing you desire, you may need to apply multiple coats of the coating. If you find that one layer is not sufficient, allow the first coat to dry completely before applying additional layers. Remember to follow the manufacturer's instructions for drying times between coats.

Using a waterproof coating to seal labels on glass bottles can provide an extra layer of protection against moisture, ensuring that your labels remain intact and legible even in wet conditions. It's a simple and effective way to safeguard your labels and maintain their appearance for a longer period of time.

In my experience as a sommelier and brewer, I have used this method to seal labels on bottles and bottles. It has proven to be quite effective in preserving the integrity of the labels, even when the bottles are chilled or placed in ice buckets. By following these steps and using a high-quality waterproof coating, you can ensure that your labels stay in place and look professional, even in challenging environments.