I receive a lot of questions about how to protect/waterproof envelopes (and the calligraphy written on them), so I decided to address that topic in this tutorial. Today, you’ll learn how to use MicroGlaze to protect your envelopes and paper. We’ll also explore whether a spray fixative is a better fit for your project, or if you can go without using any sort of protectant.
What is MicroGlaze?
MicroGlaze is a Vaseline-like substance that’s super effective when it comes to protecting envelope calligraphy from moisture, dirt, and smudges. Calligraphers love MicroGlaze because it’s non-toxic, non-acidic, and great at protecting calligraphy. It’s amazing how droplets of water just sit on the surface of (MicroGlaze-treated) envelopes.
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How to Use MicroGlaze: A Video Tutorial
It’s easiest to show you how to use MicroGlaze in video format, so I filmed a ~3 minute tutorial to show you how to apply it and how water interacts with it. If you prefer to learn with photos and written instructions, simply scroll past the video!
How to Use Microglaze to Waterproof Envelopes and Paper
To harness the power of MicroGlaze, use your index finger to dip into the MicroGlaze jar. Get a little bit of MicroGlaze on your finger, as shown in the photo below:
Next, rub the Microglaze all over the surface of the envelope. The goal is to apply a very thin coating of Microglaze all over the envelope. If you apply too much, the Microglaze will make the paper look shiny. As a side note, make sure your calligraphy is completely dry before you apply the Microglaze — otherwise, your letters will smudge!
Once you finish applying the Microglaze, you will notice that that paper has taken on a bit of a glossy sheen when viewed from a certain angle. The sheen will lessen significantly as the Microglaze has a chance to dry, but it will never completely go away. That’s something to keep in mind.
Still, it’s easy to forgive any sheen changes when you realize just how well the Microglaze manages to protect your paper. Check out the water droplets on the Amy Style envelope below. Water is no match for the Microglaze!
Using a Spray Fixative to Waterproof Envelopes and Paper
If you’re working on a batch of envelopes (like for a wedding or an event), a permanent spray fixative is probably a better fit than MicroGlaze. Spray fixatives allow you to treat several envelopes at once. I use my spray fixative every now and again to protect artwork and calligraphy, but I don’t use it often. To be honest, the warnings on the back scare me a little bit; most fixatives are extremely toxic, and you need to apply them in a well-ventilated area. Still, spray fixatives are effective. I applied fixative to the Kaitlin Style return address below, then I dropped water onto it as an experiment.
The spray fixative did a good job of protecting the lettering from smudging due to the moisture!
While spray fixative is a nice choice for protecting lettering, it doesn’t give an envelope the same “water rolls right off” super power that Microglaze does. At that same time, a spray fixative doesn’t compromise the sheen of the envelope — which is nice!
I should add a disclaimer here that, in some cases, a spray fixative can change the color of envelopes. Before you use a fixative on a lot of envelopes, especially if they are for a special event, you’ll need to test the fixative on one envelope to make sure the fixative is compatible with the paper. Also, spray fixatives have a distinct chemical odor that sticks around for a couple of days.
Is It Necessary to Waterproof Envelopes and Paper?
I don’t waterproof every envelope that I send out because USPS is generally good about keeping envelopes dry. You’ve got to have the perfect storm for envelopes to get ruined: moisture and smudge-making movement. Still, if you’ve spent a lot of time making envelope art/calligraphy and you want to ensure its safe passage, it’s a good idea to apply MicroGlaze.
In general, I’d say that you don’t need to worry about your envelopes getting ruined by moisture. If they get soaked enough in transit that the ink on them runs, then you’ve probably got bigger problems, like damaged envelope contents. Try to think of applying MicroGlaze or a fixative as “insurance” for your mail art or envelope calligraphy. Chances are that your envelope will arrive in good condition, but if you don’t mind taking the extra minute to treat them, it’s certainly not a bad idea to do so.
If you have any questions or input, please don’t hesitate to comment! I hope you learned something from today’s post, and I really appreciate you reading TPK. Have a great weekend!
This article was first posted in August of 2016. It has been updated to include new photos and clearer information.